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group by and string concatenation in oracle and mysql
 
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Code and details: https://blog.softhints.com/group-by-and-string-concatenation-in-oracle-and-mysql/ --------------------------------------------------------------------------------------------------------------------------------------------------------------- If you really find this channel useful and enjoy the content, you're welcome to support me and this channel with a small donation via PayPal and Bitcoin. PayPal donation https://www.paypal.me/fantasyan Bitcoin: 1DBZu6N9JTpRDdc9QChLZnX3v2iVRaQ4ym Programming is a fun! :) Site: www.softhints.com Facebook: www.facebook.com/Softhints/ Twitter: www.twitter.com/SoftwareHints
Views: 9 Softhints
Oracle Database11g tutorials 14 : How to CREATE TABLE using sql developer and command prompt
 
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Oracle Database11g tutorials 14 How to Create table using command prompt and Create table using sql developer Blog Link http://bit.ly/1TkY4Oe Time Line 0:25 Introduction of Tables in Database 1:03 What is Create Table (Introduction of create table) 1:30 Syntax of Create Table 2:08 How to create table using Command Prompt 4:55 How to create table using SQL Developer Links for Oracle Database tutorials 4: database connectivity using SQL developer and command prompt http://youtu.be/wSqoXRlXDUU You can have indepth knowledge about SQL create table here http://www.rebellionrider.com/sql-create-table.html Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com Today in this oracle database tutorial we will see How to CREATE A TABLE. if we have to define a table in layman language then we can say that Tables are just a collection of Rows and Columns but In RDBMS tables are database objects which help in organizing data into ROWS and COLUMNS. We can also say that SQL tables are kind of data structure which are used by database for efficient storage of data. To create a table in our database we use SQL CREATE TABLE command. SQL CREATE TABLE is a type of DATA DEFINITION LANGUAGE also known as DDL. To Create a table in your schema you will require CREATE TABLE system privilege. In our future videos we will see what are system and object privileges and how to grant them to a user. Today for this video we will be using Sample schema HR which already has all the necessary privileges. Ohk Let's see the syntax. CREATE TABLE table name ( column name1 Data-Type(size), column name2 Data-Type(size), ..... ); CREATE TABLE is an oracle reserved word or say an Oracle key word whereas There are 3 different ways of creating a table in Oracle database. Creating a table using Command Line Interface (CLI) in Oracle database For demonstrating how to create table in oracle database using CLI, I'll be using Command prompt. Thats how we create table using command prompt. you can check your table structure by DESCRIBE command for that just write DESC and your table name. Like this Another way of creating a table is by using Graphic user interface (GUI) in Oracle database To demonstrate how to create table using GUI we will use SQL developer. Lets open our SQL developer I am connected to HR schema if you do not know how to create a connection to database using SQL developer please watch my oracle database tutorial 4 that explains database connectivity using SQL developer and command prompt. Link for this video is in the description below. So lets create a table. Creating a table using SQL developer is very easy we do not have to fire any query here. Let's start First of all right click on your connection in which you want to create a table and choose schema browser. This will open a separate schema browser pane or you can expend your connection by clicking this + sign and then right click on table and choose New Table. However I prefer working with schema browser so let's skip to schema browser pane here from the first drop-down list you can choose connection name and in the second drop down list you can choose what database objects you want to work with we want to create a table thus I'll choose table and then click this arrow here and choose option for new table Ok we have created a table wizard first of all give a unique name to your table and add some column as well. For this, click the green plus button. Now we already have a column so give it some name. Also choose a datatype from the list and specify any size you can check this not null column if in case you want to make this a mandatory column you can also specify default value and constraint If you want to make this column a primary key you can click here In my future video i'll show you what are these constraints and different ways of applying them on a column in a table. for this video we will concentrate on create table only so when you are done with all your columns click ok Thats your table You can double click on your table here and can see its structure. Thats it
Views: 172098 Manish Sharma
About that error: ORA-06502: numeric or value error
 
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"ORA-06502: numeric or value error" is one of the most commonly occurring and irritating errors for PL/SQL developers. Value too big for its "container"? Trying to stuff a non-numeric string value into a number through implicit conversion? [naughty naughty] In this video, Steven takes a close look at ORA-06502, exploring the ways it can be raised and how best to deal with those scenarios. ============================ Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Resilient Java based microservices with Kubernetes by Mete Atamel
 
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Creating a single Java-based microservice is a well understood problem. Creating a cluster of load-balanced microservices that are resilient and self-healing is not so easy. Managing that cluster with rollouts and rollbacks, scaling individual services on demand, securely sharing secrets and configuration among services is even harder. Kubernetes, an open-source container management system, can help with this. In this talk, we will start with a simple Java-based microservice, containerize it using Docker, and scale it to a cluster of resilient microservices managed by Kubernetes. Along the way, we will learn what makes Kubernetes a great system for automating deployment, operations, and scaling of containerized applications. Mete Atamel I'm a Developer Advocate at Google, currently focused on helping developers with Google Cloud Platform. As a long-time Java and a recent C# developer, I like to compare the two ecosystems. Prior to Google, I worked at Microsoft, Skype, Adobe, EMC, and Nokia building apps and services on various web, mobile and cloud platforms. Originally from Cyprus, I currently live in Greenwich, not too far away from the prime meridian.
Views: 1092 Devoxx
CS50 2017 - Lecture 10 - SQL
 
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00:00:00 - Muppet Teaser 00:03:02 - eprint 00:05:07 - Facebook Login Walkthrough 00:14:34 - Flask Sessions 00:28:56 - SQL 00:29:44 - Databases 00:36:55 - SQLite 00:39:01 - Database Operations 00:45:32 - SQL Data Types 00:54:33 - Optimizing the Database 01:06:13 - phpLiteAdmin 01:12:42 - Constraints 01:18:01 - Creating a Database 01:21:58 - sqlite3 01:25:14 - SQL in Python 01:33:15 - SQL Injection Attacks 01:38:50 - Adding SQL to Flask 01:43:31 - C$50 Finance
Views: 33105 CS50
21. Cryptography: Hash Functions
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas covers the basics of cryptography, including desirable properties of cryptographic functions, and their applications to security. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 67019 MIT OpenCourseWare
C# Tutorial 11:Database values in textbox if select Combobox
 
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------------------Online Courses to learn---------------------------- Java - https://bit.ly/2H6wqXk C++ - https://bit.ly/2q8VWl1 AngularJS - https://bit.ly/2qebsLu Python - https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android - https://bit.ly/2qaRSAS Linux - https://bit.ly/2IwOuqz AWS Certified Solutions Architect - https://bit.ly/2JrGoAF Modern React with Redux - https://bit.ly/2H6wDtA MySQL - https://bit.ly/2qcF63Z ----------------------Follow--------------------------------------------- My Website - http://www.codebind.com My Blog - https://goo.gl/Nd2pFn My Facebook Page - https://goo.gl/eLp2cQ Google+ - https://goo.gl/lvC5FX Twitter - https://twitter.com/ProgrammingKnow Pinterest - https://goo.gl/kCInUp Text Case Converter - https://goo.gl/pVpcwL -------------------------Stuff I use to make videos ------------------- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook - https://amzn.to/2GE4giY Desktop - http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ------------------Facebook Links ---------------------------------------- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter ----------------------------------------------------------------------- how to bind combobox to textbox in C# ComboBox and TextBox‎ C# How to show combo box selected value in a text box‎ C# selecting an item in combobox and display corresponding Populate combobox from database C# How to get data in combobox from database? Populating a Combobox from a Dictionary How to fill different ComboBoxes in a DataGridView C# code add database column to datagridview combobox C# Populate combobox from database How to get data in combobox from database? Populating a Combobox from a Dictionary How to fill different ComboBoxes in a DataGridView code add database column to datagridview combobox Enter values into combobox from database‎ Enter values into combobox from database‎ C#
Views: 194316 ProgrammingKnowledge
CS50 2016 - Week 9 - SQL
 
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TOC 00:00:00 - Week 8 Recap 00:05:40 - froshims0 00:09:31 - froshims1 00:12:20 - SQL 00:19:13 - phpLiteAdmin 00:27:07 - SQL Commands 00:38:38 - SQL Built-Ins 00:43:27 - Joining Tables 01:03:12 - sqlite 01:06:51 - froshims2 01:32:03 - ORM 01:39:14 - SQL Injection Attacks 01:51:10 - Outro Explained Segments SQL, phpLiteAdmin: http://youtu.be/xHlpdvfLUQQ
Views: 63992 CS50
Refactoring a 1000 Lines of Code Method into Clean(er) Code (in Serbian)
 
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Long functions in even longer classes can often be found in mature code bases. Even though every programmer knows it's wrong to keep such a beast in production, every one of us has been feeding one of those for at least some time. In this lecture, we will show the process of building large functions from scratch. We will then turn attention to one such function, which has about 1000 lines of code. You will see why we need to break such monstrous functions into smaller chunks and then we will embark on a voyage to refactor and redesign it into smaller chunks of code. If you have passion for Sudoku, then the example we present will surely amuse you. The program we will be dealing with is setting up Sudoku problems and then it solves each problem, verbalizing all decisions and explaining the solution in common English sentences. But, the way in which this interesting program does its task is, at the same time, the greatest impediment to its further development. That is the point at which this lecture begins. Before watching this recording, you may wish to try fixing the same code on your own. Please download the initial solution from GitHub repository: https://github.com/zoran-horvat/sudoku-kata
Views: 1725 Zoran Horvat
Excel Lookup/Search Tip 6 - Vlookup with a Drop Down Menu and Data Validation
 
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Excel Forum: https://www.teachexcel.com/talk/microsoft-office?src=yt Excel Tutorials: https://www.teachexcel.com/src=yt Learn how to use the VLOOKUP function in Excel in conjunction with a data validation drop down menu in order to create more logical and easy to use Excel spreadsheets. This allows you to use a drop down menu to supply the lookup value to the vlookup function in Excel instead of having to type the lookup value by hand. This reduces the amount of errors when searching a database and increases efficiency in Excel. For Excel consulting or to get the spreadsheet or macro used here visit the website http://www.TeachExcel.com There, you can also get more free Excel video tutorials, macros, tips, and a forum for Excel. Have a great day!
Views: 198418 TeachExcel
Pull First, Middle and Last Names From One Cell Into Separate Cells In Excel 2010
 
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Learn how to pull 3 different strings of text like first, middle and last names from one cell in Excel into separate cells.
"Automatic Patch Generation" by Claire Le Goues
 
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Info: http://pwlconf.org/claire-legoues/ Slides: http://bit.ly/2d13UGY Transcription: http://bit.ly/2kxtiti Claire's Site: https://clairelegoues.com/ Claire's Twitter: https://twitter.com/clegoues ----------------------------------------------------------------------------------------------------------- Platinum Sponsors: Two Sigma (@twosigma) and Comcast (@comcast) ----------------------------------------------------------------------------------------------------------- Description ------------------ Research in automated program patching seeks to improve programs by, e.g., fixing bugs, porting functionality, or improving non-functional properties. The past eight years have seen a rapid expansion of techniques proposed and evaluated in this space. In this talk I will discuss the progression of the area of automated bug repair in particular. I will especially focus on the key challenge of assuring, measuring, and reasoning about the quality of bug-fixing patches. Most such techniques, whether heuristic or semantic, rely on test cases to validate transformation correctness, in the absence of formal correctness specifications, but otherwise vary in the way they construct candidate patches and traverse the infinite space of possibilities. I will outline recent results on the relationship between test suite quality and origin and output quality, with observations about both semantic and heuristic approaches. I will conclude with a discussion of potentially promising future directions and open questions. Referenced Papers ------------------------------ - Automatic Program Repair with Evolutionary Computation | https://www.cs.virginia.edu/~weimer/p/p109-weimer.pdf - Angelix: scalable multiline program patch synthesis via symbolic analysis | https://www.comp.nus.edu.sg/~abhik/pdf/ICSE16-angelix.pdf - Repairing Programs with Semantic Code Search | http://people.cs.umass.edu/~brun/pubs/pubs/Ke15ase.pdf Bio ----- Claire Le Goues is an Assistant Professor in the School of Computer Science at Carnegie Mellon University, primarily affiliated with the Institute for Software Research. Her research interests span software engineering and programming languages, and especially in how to construct, maintain, evolve, improve/debug, and assure high-quality software systems. She is passionate about the education and training of both software engineering practitioners and researchers, from all backgrounds and walks of life. Claire has an MS and PhD from the University of Virginia and a BA from Harvard College, all in Computer Science. She worked (briefly!) as a software engineer before graduate school, exposure which gave her a taste for techniques and analyses that scale to the complexities of Real Software.
Views: 1290 PapersWeLove
Part 1   How to retrieve data from different databases in asp net
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-1-how-to-retrieve-data-from.html Several of our youtube channel subscribers faced this question in a dot net written test. We have 2 databases 1. USADB - Contains Employees table that stores only US Employees 2. UKDB - Contains Employees table that stores only UK Employees Implement an asp.net web page that retrieves data from the Employees table both from USADB and UKDB databases. Add a webform to the project. Drag and drop a GridView control on the webform. Copy and paste the following code in the code-behind file. using System; using System.Configuration; using System.Data; using System.Data.SqlClient; namespace Demo { public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string USADBCS = ConfigurationManager.ConnectionStrings["USADB"].ConnectionString; string UKDBCS = ConfigurationManager.ConnectionStrings["UKDB"].ConnectionString; SqlConnection con = new SqlConnection(USADBCS); SqlDataAdapter da = new SqlDataAdapter("select * from Employees", con); DataSet ds1 = new DataSet(); da.Fill(ds1); con = new SqlConnection(UKDBCS); da.SelectCommand.Connection = con; DataSet ds2 = new DataSet(); da.Fill(ds2); ds1.Merge(ds2); Gridview1.DataSource = ds1; Gridview1.DataBind(); } } }
Views: 86231 kudvenkat
The Programming Language Wars
 
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Modern society is built on software platforms that encompass a great deal of our lives. While this is well known, software is invented by people and this comes at considerable cost. Notably, approximately $331.7 billion are paid, in the U.S. alone, in wages every year for this purpose. Generally, developers in industry use programming languages to create their software, but there exists significant dispersion in the designs of competing language products. In some cases, this dispersion leads to trivial design inconsistencies (e.g., the meaning of the symbol +), while in other cases the approaches are radically different. Studies in the literature show that some of the broader debates, like the classic ones on static vs. dynamic typing or competing syntactic designs, provide consistent and replicable results in regard to their human factors impacts. For example, programmers can generally write correct programs more quickly using static typing than dynamic for reasons that are now known. In this talk, we will discuss three facets of language design dispersion, sometimes colloquially referred to as the “programming language wars.” First, we will flesh out the broader impacts inventing software has on society, including its cost to industry, education, and government. Second, recent evidence has shown that even research scholars are not gathering replicable and reliable data on the problem. Finally, we will give an overview of the facts now known about competing alternatives (e.g., types, syntax, compiler error design, lambdas).  See more on this video at https://www.microsoft.com/en-us/research/video/the-programming-language-wars/
Views: 1513 Microsoft Research
Linux Tutorial for Beginners: Introduction to Linux Operating System
 
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http://www.guru99.com/unix-linux-tutorial.html Linux is the most popular server OS(Operating System). Linux is a clone of UNIX. Knowing one is as good as knowing the other. This tutorial is for absolute beginners. You will know how Linux works. You can learn Linux, by installing it right on your existing Windows or Mac OS systems! (Detailed steps to install Ubuntu given in tutorials). Click on the time points below to view different sections! 6:50 Most Popular Linux distros 8:37 Installing Linux – VirtualBox 18:05 Introduction to Linux operating system and comparison with windows 24:32 Terminal vs. File Manager 27:20 Command Line Interfaces on Ubuntu Operating system 49:19 Brief of Linux commands 52:04 Ownership in Linux Files (Permissions in Linux) 1:04:58 Print, Email & Install Software on Linux 1:25:34 Regular expressions In Linux/Ubuntu 1:30:46 Basic Environment Variables 1:35:56 Communication in Linux 1:37:21 FTP (File transfer protocol) 1:42:35 Types of Processes in Linux 1:54:07 VI Editor Tutorial 2:01:45 Shell Scripting In Linux 2:09:11 What is PERL Programming 2:13:58 Virtual Terminal 2:20:00 Unix Administration in Linux What is Linux? Linux is an operating system (kernel). It is distributed under an open source license. Its functionality list is quite like UNIX. Like, share and subscribe our channel for more videos. Enjoy our free tutorial on our YouTube channel and our website. Watch more videos on our YouTube channel at https://www.youtube.com/channel/UC19i1XD6k88KqHlET8atqFQ READ this as a book on Amazon by viewing at http://amzn.to/2gZGjbE (Linux) Visit our website for more! www.guru99.com FACEBOOK! Would you prefer to watch more about us? Like our page for more https://www.facebook.com/guru99com/ TWITTER! Tweet for us on Twitter with #guru99 and follow us on https://twitter.com/guru99com THANKS! We appreciate you reading this and hope you have a wonderful day! Sincerely, Guru99
Views: 264163 Guru99
Crockford on JavaScript - Chapter 2: And Then There Was JavaScript
 
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Yahoo!'s JavaScript architect Douglas Crockford surveys the features of the JavaScript programming language.
Views: 119872 YUI Library
CppCon 2018: Bob Steagall “Fast Conversion From UTF-8 with C++, DFAs, and SSE Intrinsics”
 
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http://CppCon.org — Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/CppCon/CppCon2018 — UTF-8 is taking on an increasingly important role in text processing. Many applications require the conversion of UTF-8 to UTF-16 or UTF-32, but typical conversion algorithms are sub-optimal. This talk will describe a fast, correct, DFA-based approach to UTF-8 conversion that requires only three simple lookup tables and a small amount of straightforward C++ code. We'll begin with a quick review UTF-8 and its relation to UTF-16 and UTF-32, as well as the concept of code units and code points. Next, we'll look at the layout of bits within a UTF-8 byte sequence, and from that, show a simple algorithm for converting from UTF-8 to UTF-32. Along the way will be a definition of overlong and invalid byte sequences. Following that will be a discussion of how to construct a DFA to perform the same operations as the simple algorithm. We'll then look at code for the DFA traversal underlying the basic conversion algorithm, and how to gain an additional performance boost by using SSE intrinsics. Finally, we'll compare the performance of this approach to several commonly-available implementations on Windows and Linux, and show how it's possible to do significantly faster conversions. — Bob Steagall, KEWB Computing CppCon Poster Chair I've been working in C++ since discovering the second edition of The C++ Programming Language in a college bookstore in 1992. The majority of my career has been spent in medical imaging, where I led teams building applications for functional MRI and CT-based cardiac visualization. After a brief detour through the world of DNS and analytics, I'm now working in the area of distributed stream processing. I'm a relatively new member of the C++ Standardization Committee, and launched a blog earlier this year to write about C++ and related topics. I hold BS and MS degrees in Physics, and I'm an avid cyclist when weather permits. — Videos Filmed & Edited by Bash Films: http://www.BashFilms.com
Views: 4684 CppCon
Converting a table of Lat / Long values into a Shapefile
 
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Jeff Blossom: step-by-step instructions for bringing tabular data (in an Excel spreadsheet) into ArcMap 10, and creating a points layer from x, y coordinates entered in the spreadsheet. The layer is then saved to a Shapefile for use in GIS. CGA Training Module 1 - Feb 2011
Views: 126989 Harvard CGA
About that error: PLS-00306: wrong number or types of arguments
 
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You want to call that subprogram. You NEED to call that subprogram. But you keep getting a compile error: "PLS-00306: wrong number or types of arguments". What is causing this? How do I fix it? In this video, Steven explores the PLS-00306 error and some of its nuances. After watching this, you should be well prepared to quickly resolve PLS-00306 the next time it attacks your code. ====================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Bigtable, BigQuery, and iCharts for ingesting and visualizing data at scale (Google Cloud Next '17)
 
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Bigtable is a low-latency, high-throughput NoSQL analytical database. BigQuery is a high-performance data warehouse with a SQL API. In this talk, Carter Page and George McMullen discuss how you can use both of these tools together with iCharts to ingest, analyze, and visualize data at scale. Missed the conference? Watch all the talks here: https://goo.gl/c1Vs3h Watch more talks about Infrastructure & Operations here: https://goo.gl/k2LOYG
Views: 4282 Google Cloud Platform
RubyConf 2018 - Refactoring the Technical Interview by Mark Siemers
 
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RubyConf 2018 - Refactoring the Technical Interview by Mark Siemers Is your technical interview optimized? Could it use a refactor? Do you ask candidates questions that could actually influence your production codebase? Or, do you ask them about problems that are solved and standardized? Or worse, contrived and trivial? Have you ever asked any of these questions: Find min or max in a list Implement a sorting algorithm FizzBuzz (or any contrived algorithm) “Now can you do it recursively?” Leverage your production code and commit history to make your next interview more effective in identifying the right hire. All while having more fun.
Views: 183 Confreaks
RailsConf 2017: Developer Happiness on the Front End with Elm by Kevin Yank
 
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RailsConf 2017: Developer Happiness on the Front End with Elm by Kevin Yank Ruby and Rails famously prioritised developer happiness, and took the world by storm. Elm, a new language that compiles to JavaScript, proves that putting developer happiness first can produce very different results on the front end! Born out of Haskell, Elm is as unlike Ruby as programming languages get, but in this session we’ll see how its particular blend of design decisions tackles everything that’s painful about front-end development, making it an excellent choice for the curious Rubyist’s next favorite language.
Views: 3605 Confreaks
Extracting Information from the Source File Name
 
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Many times we get data files from different sources and the source file name itself might contain some valid information like 'file creation date', 'file generated department name', 'region name' etc. We used to use Unix script to extract such information from the file name, but we don't have to write such scripts anymore. In this session looks at the option provided by Informatica PowerCenter to extract information from the source file name.
Views: 1348 Informatica Support
Java prog#134. How to read an entire text file and display in a JTextField and JTextArea
 
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------------------Online Courses to learn---------------------------- Java - https://bit.ly/2H6wqXk C++ - https://bit.ly/2q8VWl1 AngularJS - https://bit.ly/2qebsLu Python - https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android - https://bit.ly/2qaRSAS Linux - https://bit.ly/2IwOuqz AWS Certified Solutions Architect - https://bit.ly/2JrGoAF Modern React with Redux - https://bit.ly/2H6wDtA MySQL - https://bit.ly/2qcF63Z ----------------------Follow--------------------------------------------- My Website - http://www.codebind.com My Blog - https://goo.gl/Nd2pFn My Facebook Page - https://goo.gl/eLp2cQ Google+ - https://goo.gl/lvC5FX Twitter - https://twitter.com/ProgrammingKnow Pinterest - https://goo.gl/kCInUp Text Case Converter - https://goo.gl/pVpcwL -------------------------Stuff I use to make videos ------------------- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook - https://amzn.to/2GE4giY Desktop - http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ------------------Facebook Links ---------------------------------------- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter java - Loading a text file into a textarea swing - Append .txt file to a TextArea in Java Its one line of code to populate a text area. Yes the solutions here will work for read only files but they will not work if you ever want to write out How to read an entire text file and display in a textbox or text area read text file into text area read a txt into a textarea Swing / AWT / SWT forum How do I read multiple lines from a textarea in Java How do I read text file into JTextArea?Searches related to how to read a text file in java in text area java import text file java bufferedreader read file writing files java
Views: 56342 ProgrammingKnowledge
DEF CON 21 - Karl Koscher and Eric Butler - The Secret Life of SIM Cards
 
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The Secret Life of SIM Cards KARL KOSCHER GRAD STUDENT, UNIVERSITY OF WASHINGTON ERIC BUTLER SIM cards can do more than just authenticate your phone with your carrier. Small apps can be installed and run directly on the SIM separate from and without knowledge of the phone OS. Although SIM Applications are common in many parts of the world, they are mostly unknown in the U.S. and the closed nature of the ecosystem makes it difficult for hobbyists to find information and experiment. This talk, based on our experience building SIM apps for the Toorcamp GSM network, explains what (U)SIM Toolkit Applications are, how they work, and how to develop them. We will explain the various pieces of technology involved, including the Java Card standard, which lets you write smart card applications using a subset of Java, and the GlobalPlatform standard, which is used to load and manage applications on a card. We will also talk about how these applications can be silently loaded, updated, and interacted with remotely over-the-air. Karl Koscher (@supersat) is a PhD student studying security and privacy at the University of Washington. His research covers a wide variety of areas, but he primarily focuses on security for embedded systems. Most recently, he was one of the primary researchers that demonstrated that modern cars are vulnerable to multiple remote exploits, which can affect nearly every physical system in the car. Eric Butler (@codebutler) is a software engineer with an interest in security, privacy, and usability. He's known for creating Firesheep, an easy to use tool that clearly demonstrated the risks of HTTP session hijacking attacks, and prompted major websites including Facebook, Twitter, and Hotmail to improve their security. He also created FareBot, an Android app that reads data from common NFC transit cards sparking a discussion around the privacy of these systems. Materials: https://www.defcon.org/images/defcon-21/dc-21-presentations/Koscher-Butler/DEFCON-21-Koscher-Butler-The-Secret-Life-of-SIM-Cards-Updated.pdf
Views: 10958 DEFCONConference
Excel Scenarios: Store Multiple Values in Cells
 
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http://www.contextures.com/xlScenario01.html Visit this link for sample workbook and written instructions. With Excel Scenarios, you can store different sets of values (up to 32 cells) in a workbook. Then, without any programming, you can switch between the saved values. In this example, we store budget projections for two departments. View and print one department's budget, and then switch to the other department, all in the same cells.
Views: 38493 Contextures Inc.
Create, edit and manage directories and files
 
32:23
In this lecture I demonstrate how to: creating directories (mkdir) - (3:11, 4:29) find the command that you need (apropos or command help) - (1:40, 2:20) delete directories (rmdir or rm -rf) - (10:54, 12:38) create files (touch) - (17:19, 17:49) use wildcards (*) - (19:09) create files using the nano editor - (20:29) display files to the screen (cat) - (26:36) delete files (rm) - (29:20)
How to Create a table in Access from Scratch - Access 2007, 2010, 2013, 2016
 
13:39
How to Create a table in Access from Scratch - Access 2007, 2010, 2013, 2016 Subscribe - http://www.youtube.com/user/TomFragale?sub_confirmation=1 This video will show you how to display an Excel spreadsheet on any Sharepoint page. https://youtu.be/o_wSeTyfkTM Tom Fragale - Expert Computer Consultant & Trainer Custom On-Site Trainings , Webinars, and Consulting available See all playlists - http://www.youtube.com/playlist?list=PLuugq1ExG0a2D3meA_gbuwt7ibh8FIBQN Subscribe - http://www.youtube.com/user/TomFragale?sub_confirmation=1 My 25 Most Popular videos Create Mailing Labels from Your Excel 2010 data using Mail Merge in Word 2010 Christmas holiday HD CC https://www.youtube.com/watch?v=-dh1KutksMY Using An Excel If Function Formula With Multiple Conditions - Excel 2010 Tutorial Examples HD CC https://www.youtube.com/watch?v=-dh1KutksMY How To Compare 2 Sheets Using The Vlookup Function Formula Excel 2007 Excel 2010 Excel 2013 Tutorial HD CC https://www.youtube.com/watch?v=nVxGFPDp53g Excel Pivot Table Tutorial - Create A Monthly,quarterly, Yearly Summary Report - Excel 2013 HD CC https://www.youtube.com/watch?v=9k1KKbOwCEM Access switchboard manager - creating a menu in Access 2010 Tutorial Access 2013 Access 2007 HD CC https://www.youtube.com/watch?v=zVm5W8h7HFk Linking Sheets - Linking Data from Different Excel Sheets and Workbooks - Excel 2010 Tutorial HD CC https://www.youtube.com/watch?v=OIL6V2jzDRI Installing an odbc driver in Windows 8 and Windows 8.1 SQL Server Oracle ODBC Driver HD https://www.youtube.com/watch?v=yJWxwDBl8-Y How to make an Access query using yes no fields - Access 2010 Tutorial Access 2013 Access 2007 HD CC https://www.youtube.com/watch?v=z6r6r91V5FY How to compare 2 tables in Access - Create a Find Unmatched Query in Access HD https://www.youtube.com/watch?v=TkZdfptGxu8 Access Crosstab Query In Access 2007, 2010, 2013 - Summary Reports Access 2010 Tutorial HD CC https://www.youtube.com/watch?v=0TJMFIlZXGQ How to reset autonumber in Access 2013, Microsoft Access 2010, and Access 2007 HD https://www.youtube.com/watch?v=hI3wS5cPUcc Creating a workflow in Sharepoint 2013 - How to create a workflow in Sharepoint HD https://www.youtube.com/watch?v=lPnxHWNtL7w How to Use a sharepoint list in Access 2013, Microsoft Access 2010, and Access 2007 Tutorial HD https://www.youtube.com/watch?v=yD5VF9h25mI How to use the lookup wizard - The Wonderful Wizards of Access - Using the Access Lookup Wizard 2010 HD https://www.youtube.com/watch?v=HamWE7XQhHE Word - Adding a Picture To Mailing Labels - Create Christmas Holiday Labels HD https://www.youtube.com/watch?v=iD9LN_esiEw How to import a text file into Access - Access 2010 tutorial CSV file Access 2007 Access 2013 HD https://www.youtube.com/watch?v=ddbf4lh7fZQ How to lock a field on an Access form HD https://www.youtube.com/watch?v=zVqCtgQoF6s How to add a great lookup field to An Access form using the combo box wizard. HD https://www.youtube.com/watch?v=HzD1T6VLDM0 How to Add data to Excel pivot tables - Excel Pivot Table tutorial HD https://www.youtube.com/watch?v=JISD4UFwHvE Syncing your sound with other animations in PowerPoint 2010 HD https://www.youtube.com/watch?v=dlDj0wRWL3c How to make General Ledger entries in Quickbooks HD https://www.youtube.com/watch?v=svzcMRaF2os How to use the Input Mask Wizard - The Wonderful Wizards of Access - Using the Input Mask Wizard HD https://www.youtube.com/watch?v=fBlT1KrQUsY How to Import Excel to Access - Excel 2010 Tutorial , Access 2010 Tutorial HD https://www.youtube.com/watch?v=ljjuU2dtO5o How to calculate the week number in Excel - Excel 2010 Tutorial HD CC https://www.youtube.com/watch?v=MwgDYeanjAk How to Print Multiple Power Point Slides on One Page HD https://www.youtube.com/watch?v=MbimotE3dhw Please visit my other channel - http://www.youtube.com/channel/UCehkuRLhj8SrILuFPpSotkg Contact/Conect with me at: Tom Fragale (215)280-1073 http://www.youtube.com/user/TomFragale https://www.youtube.com/user/TomFragale Subscribe to my channel - http://www.youtube.com/user/TomFragale?sub_confirmation=1 Excel Macros Complete https://www.youtube.com/watch?v=mRCx7x4Tyfg Excel Pivot Tables Complete https://www.youtube.com/watch?v=Yzk0-u0fCCE Excel Charts https://www.youtube.com/watch?v=nDn5thIfZD4 Top 10 Functions in Excel https://www.youtube.com/watch?v=WxxLGJPUHKE Newest Videos : Outlook Tips & Tricks https://www.youtube.com/watch?v=lh0zSjILUVw&index=1&list=PLuugq1ExG0a14z4Z0U726FsCLiS9O7nBc Word Basics https://www.youtube.com/watch?v=prpVvtHB24M&list=PLuugq1ExG0a0ebso8-a59dCaOj9_zJc_D&index=26 Excel Basics https://www.youtube.com/watch?v=QANOgcpNbmY&t=25s&index=176&list=PLuugq1ExG0a02mQ9NExldFwSbBmqZr9jL Access Queries https://www.youtube.com/watch?v=T5jLS5Ofwmo&index=87&list=PLuugq1ExG0a1CYItcr_N4Ij37zg8WQLop&t=8s
Universally unique identifier
 
20:39
A universally unique identifier (UUID) is an identifier standard used in software construction, standardized by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE). The intent of UUIDs is to enable distributed systems to uniquely identify information without significant central coordination. In this context the word unique should be taken to mean "practically unique" rather than "guaranteed unique". Since the identifiers have a finite size, it is possible for two differing items to share the same identifier. The identifier size and generation process need to be selected so as to make this sufficiently improbable in practice. Anyone can create a UUID and use it to identify something with reasonable confidence that the same identifier will never be unintentionally created by anyone to identify something else. Information labeled with UUIDs can therefore be later combined into a single database without needing to resolve identifier (ID) conflicts. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 2115 Audiopedia
2013_comp_101_week_11_databases_part_02
 
14:57
More on databases, DBMSs, and data types... not in that order
Views: 38 Drew Clinkenbeard
Lecture - 35 Data Mining and Knowledge Discovery Part II
 
58:00
Lecture Series on Database Management System by Dr. S. Srinath,IIIT Bangalore. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 43156 nptelhrd
Dmitry Savintsev and Albert Yu: Security Testing of YUI-Powered Applications
 
51:43
In this YUIConf 2012 talk, Dmitry Savintsev and Albert Yu, Yahoo! security team engineers, discuss the need to embed security testing in the standard repertoire of every Javascript and YUI developer, alongside with functionality and performance tests. They explain the need for security testing as part of development workflow, discuss tools used for such testing, explain how to test for XSS and analyze code statically, and talk about the future prospects in the field.
Views: 487 YUI Library
RubyConf 2016 - Ruby’s C Extension Problem and How We're Solving It by Chris Seaton
 
35:28
RubyConf 2016 - Ruby’s C Extension Problem and How We're Solving It by Chris Seaton Ruby’s C extensions have so far been the best way to improve the performance of Ruby code. Ironically, they are now holding performance back, because they expose the internals of Ruby and mean we aren’t free to make major changes to how Ruby works. In JRuby+Truffle we have a radical solution to this problem – we’re going to interpret the source code of your C extensions, like how Ruby interprets Ruby code. Combined with a JIT this lets us optimise Ruby but keep support for C extensions.
Views: 1526 Confreaks
DEF CON 23 - Nemus - Hacking SQL Injection for Remote Code Execution on a LAMP Stack
 
38:46
Remember that web application you wrote when you where first learning PHP? Ever wonder how vulnerable that code base is? Through the perspective of an attacker you will see how SQL injection can lead to data loss and system compromise. This presentation will take you through the techniques and tools used to take control of a PHP web application starting from an injection point moving to PHP web shells, and ending with a Linux wildcard attack. Speaker Bio: Nemus works as a software engineer in the payment industry developing software that transfers money between banking systems. He is a founding member of 801 Labs, a hackerspace located in Salt Lake City, and is an active member of his local DEF CON group DC801. Nemus has a BS in Computer Science and is a certified GIAC Web Application Penetration Tester (GWAPT). Twitter: @Nemus801
Views: 6367 DEFCONConference
DEF CON 21 - Ming Chow - Abusing NoSQL Databases
 
20:27
Abusing NoSQL Databases Ming Chow Lecturer, Tufts University Department of Computer Science The days of selecting from a few SQL database options for an application are over. There is now a plethora of NoSQL database options to choose from: some are better than others for certain jobs. There are good reasons why developers are choosing them over traditional SQL databases including performance, scalabiltiy, and ease-of-use. Unfortunately like for many hot techologies, security is largely an afterthought in NoSQL databases. This short but concise presentation will illustrate how poor the quality of security in many NoSQL database systems is. This presentation will not be confined to one particular NoSQL database system. Two sets of security issues will be discussed: those that affect all NoSQL database systems such as defaults, authentication, encryption; and those that affect specific NoSQL database systems such as MongoDB and CouchDB. The ideas that we now have a complicated heterogeneous problem and that defense-in-depth is even more necessary will be stressed. There is a common misconception that SQL injection attacks are eliminated by using a NoSQL database system. While specifically SQL injection is largely eliminated, injection attack vectors have increased thanks to JavaScript and the flexibility of NoSQL databases. This presentation will present and demo new classes of injection attacks. Attendees should be familiar with JavaScript and JSON. Ming Chow (@tufts_cs_mchow) is a Lecturer at the Tufts University Department of Computer Science. His areas of work are in web and mobile engineering and web security. He teaches courses largely in the undergraduate curriculum including the second course in the major sequence, Web Programming, Music Apps on the iPad, and Introduction to Computer Security. He was also a web application developer for ten years at Harvard University. Ming has spoken at numerous organizations and conferences including the High Technology Crime Investigation Association - New England Chapter (HTCIA-NE), the Massachusetts Office of the Attorney General (AGO), John Hancock, OWASP, InfoSec World (2011 and 2012), DEF CON 19 (2011), the Design Automation Conference (2011), Intel, and the SOURCE Conference (Boston 2013). Ming's projects in information security include building numerous CTF challenges, Internet investigations, HTML5 and JavaScript security, and Android forensics. Materials: https://www.defcon.org/images/defcon-21/dc-21-presentations/Chow/DEFCON-21-Chow-Abusing-NoSQL-Databases-Extra-Updated.txt
Views: 4772 DEFCONConference
12. Fusion Trees
 
01:24:09
MIT 6.851 Advanced Data Structures, Spring 2012 View the complete course: http://ocw.mit.edu/6-851S12 Instructor: Erik Demaine Fusion trees: sketching, parallel comparison, most significant set bit License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 6189 MIT OpenCourseWare
G+ Platform Office Hours -- Retrieving Profile Information with the Sign In Button
 
22:51
Join us for a live coding demo of the sign in button and how to retrieve profile information using it!
Views: 3188 Google Developers
Google I/O 2009 - Using the Google Secure Data Connector..
 
47:47
Google I/O 2009 - Using the Google Secure Data Connector to Access Behind-the-Firewall Data from Google's cloud Jun Yang This session will show how enterprises can bring their existing data into Google Apps using the Google Secure Data Connector. In this session, we will access information stored in a SQL database from behind a firewall and we will show how to use that information inside App Engine, a spreadsheet and a gadget. This session demonstrate how you can build powerful applications in the cloud by using your existing corporate infrastructure. For presentation slides and all I/O sessions, please go to: code.google.com/events/io/sessions.html
Views: 2075 Google Developers
Azure Red Shirt Dev Tour NYC 2017 | Part 2
 
01:25:01
Join Scott Guthrie and some members of the Cloud Developer Advocate team in a tour of Azure services and tools. By the end of this viewing you'll have learned something new and be able to quickly get started trying something in Azure. Visit https://aka.ms/redshirtdemos for a list of all the things demonstrated in this event and to try them out yourself.
Views: 938 Microsoft Azure
SQL | Wikipedia audio article
 
26:03
This is an audio version of the Wikipedia Article: SQL Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= SQL ( (listen) S-Q-L, "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS). It is particularly useful in handling structured data where there are relations between different entities/variables of the data. SQL offers two main advantages over older read/write APIs like ISAM or VSAM: first, it introduced the concept of accessing many records with one single command; and second, it eliminates the need to specify how to reach a record, e.g. with or without an index. Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements, which may be informally classed as sublanguages, commonly: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML). The scope of SQL includes data query, data manipulation (insert, update and delete), data definition (schema creation and modification), and data access control. Although SQL is often described as, and to a great extent is, a declarative language (4GL), it also includes procedural elements. SQL was one of the first commercial languages for Edgar F. Codd's relational model, as described in his influential 1970 paper, "A Relational Model of Data for Large Shared Data Banks". Despite not entirely adhering to the relational model as described by Codd, it became the most widely used database language.SQL became a standard of the American National Standards Institute (ANSI) in 1986, and of the International Organization for Standardization (ISO) in 1987. Since then, the standard has been revised to include a larger set of features. Despite the existence of such standards, most SQL code is not completely portable among different database systems without adjustments.
Views: 0 wikipedia tts
A Day In the Sky,.. - ( news  full video )
 
08:38
Spread the word about PropellerAds and earn money! https://goo.gl/7E5sxJ YouTube Tips and Triks to make real dollers: http://mymoney7725.blogspot.ae/ The Best Portable Bluetooth Speaker ( Power Speakers ): http://speakermarket.blogspot.ae/ Are You loosing money from Stock market? Read How to make Profit : http://mytrade7725.blogspot.ae/
Views: 357105 MYVIDEO7725
DEF CON 24 - Benjamin Holland - Developing Managed Code Rootkits for JRE
 
42:55
Managed Code Rootlets (MCRs) are terrifying post-exploitation attacks that open the doors for cementing and expanding a foothold in a target network. While the concept isn’t new, practical tools for developing MCRs don’t currently exist. Ere Metula released ReFrameworker in 2010 with the ability to inject attack modules into the C# runtime, paving the way for MCRs, but the tool requires the attacker to have knowledge of intermediate languages, does not support other runtimes, and is no longer maintained. Worse yet, the ‘write once, run anywhere’ motto of managed languages is violated when dealing with runtime libraries, forcing the attacker to write new exploits for each target platform. This talk debuts a free and open source tool called JReFrameworker aimed at solving the aforementioned challenges of developing attack code for the Java runtime while lowering the bar so that anyone with rudimentary knowledge of Java can develop a managed code rootlet. With Java being StackOverflow’s most popular server side language of 2015 the Java runtime environment is a prime target for exploitation. JReFrameworker is an Eclipse plugin that allows an attacker to write simple Java source to develop, debug, and automatically modify the runtime. Best of all, working at the intended abstraction level of source code allows the attacker to ‘write once, exploit anywhere’. When the messy details of developing attack code are removed from the picture the attacker can let his creativity flow to develop some truly evil attacks, which is just what this talk aims to explore. Bio: Ben Holland is a PhD student at Iowa State University with experience working on two high profile DARPA projects. He has extensive experience writing program analyzers to detect novel and sophisticated malware in Android applications and served on the ISU team as a key analyst for DARPA’s Automated Program Analysis for Cybersecurity (APAC) program. He’s lectured on security topics for university courses in program analysis and operating system principles. Ben has given multiple talks at professional clubs as well as security and academic conferences. His past work experience has been in research at Iowa State University, mission assurance at MITRE, government systems at Rockwell Collins, and systems engineering at Wabtec Railway Electronics. Ben holds a M.S. degree in Computer Engineering and Information Assurance, a B.S. in Computer Engineering, and a B.S. in Computer Science. Currently he serves on the ISU team for DARPA’s Space/Time Analysis for Cybersecurity (STAC) program.
Views: 1556 DEFCONConference
CS50 VR 2016 - Week 9 - SQL
 
01:48:30
This is Week 9 of CS50 2016 in 360º stereoscopic VR, shot on Nokia OZO. For the 2D version of Week 9, see https://youtu.be/hporRfjFISo. 00:00:00 - Week 8 Recap 00:05:40 - froshims0 00:09:31 - froshims1 00:12:20 - SQL 00:19:13 - phpLiteAdmin 00:27:07 - SQL Commands 00:38:38 - SQL Built-Ins 00:43:27 - Joining Tables 01:03:12 - sqlite 01:06:51 - froshims2 01:32:03 - ORM 01:39:14 - SQL Injection Attacks 01:51:10 - Outro
Views: 2944 CS50
SQL | Wikipedia audio article
 
26:03
This is an audio version of the Wikipedia Article: SQL Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= SQL ( (listen) S-Q-L, "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS). It is particularly useful in handling structured data where there are relations between different entities/variables of the data. SQL offers two main advantages over older read/write APIs like ISAM or VSAM: first, it introduced the concept of accessing many records with one single command; and second, it eliminates the need to specify how to reach a record, e.g. with or without an index. Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements, which may be informally classed as sublanguages, commonly: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML). The scope of SQL includes data query, data manipulation (insert, update and delete), data definition (schema creation and modification), and data access control. Although SQL is often described as, and to a great extent is, a declarative language (4GL), it also includes procedural elements. SQL was one of the first commercial languages for Edgar F. Codd's relational model, as described in his influential 1970 paper, "A Relational Model of Data for Large Shared Data Banks". Despite not entirely adhering to the relational model as described by Codd, it became the most widely used database language.SQL became a standard of the American National Standards Institute (ANSI) in 1986, and of the International Organization for Standardization (ISO) in 1987. Since then, the standard has been revised to include a larger set of features. Despite the existence of such standards, most SQL code is not completely portable among different database systems without adjustments.
Views: 2 wikipedia tts
Week 9, continued
 
01:17:38
Views: 24525 CS50
DEF CON 24 - Benjamin Holland - Developing Managed Code Rootkits for JRE
 
42:55
Managed Code Rootlets (MCRs) are terrifying post-exploitation attacks that open the doors for cementing and expanding a foothold in a target network. While the concept isn’t new, practical tools for developing MCRs don’t currently exist. Ere Metula released ReFrameworker in 2010 with the ability to inject attack modules into the C# runtime, paving the way for MCRs, but the tool requires the attacker to have knowledge of intermediate languages, does not support other runtimes, and is no longer maintained. Worse yet, the ‘write once, run anywhere’ motto of managed languages is violated when dealing with runtime libraries, forcing the attacker to write new exploits for each target platform. This talk debuts a free and open source tool called JReFrameworker aimed at solving the aforementioned challenges of developing attack code for the Java runtime while lowering the bar so that anyone with rudimentary knowledge of Java can develop a managed code rootlet. With Java being StackOverflow’s most popular server side language of 2015 the Java runtime environment is a prime target for exploitation. JReFrameworker is an Eclipse plugin that allows an attacker to write simple Java source to develop, debug, and automatically modify the runtime. Best of all, working at the intended abstraction level of source code allows the attacker to ‘write once, exploit anywhere’. When the messy details of developing attack code are removed from the picture the attacker can let his creativity flow to develop some truly evil attacks, which is just what this talk aims to explore. Bio: Ben Holland is a PhD student at Iowa State University with experience working on two high profile DARPA projects. He has extensive experience writing program analyzers to detect novel and sophisticated malware in Android applications and served on the ISU team as a key analyst for DARPA’s Automated Program Analysis for Cybersecurity (APAC) program. He’s lectured on security topics for university courses in program analysis and operating system principles. Ben has given multiple talks at professional clubs as well as security and academic conferences. His past work experience has been in research at Iowa State University, mission assurance at MITRE, government systems at Rockwell Collins, and systems engineering at Wabtec Railway Electronics. Ben holds a M.S. degree in Computer Engineering and Information Assurance, a B.S. in Computer Engineering, and a B.S. in Computer Science. Currently he serves on the ISU team for DARPA’s Space/Time Analysis for Cybersecurity (STAC) program.
Views: 6 Security Hub
Week 8, continued
 
55:24
Views: 30552 CS50

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