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2. SQL Tutorial - W3Schools

   www.w3schools.com/sql

   SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. Start learning SQL now ».

3. Introduction to SQL - W3Schools

   www.w3schools.com/sql/sql_intro.asp

   SQL stands for Structured Query Language. SQL lets you access and manipulate databases. SQL became a standard of the American National Standards Institute (ANSI) in 1986, and of the International Organization for Standardization (ISO) in 1987.

4. MySQL Tutorial - W3Schools

   www.w3schools.com/mysql

   Learn by examples! This tutorial supplements all explanations with clarifying examples. See All SQL Examples

5. MySQL SQL - W3Schools

   www.w3schools.com/mysql/mysql_sql.asp

   Some of The Most Important SQL Commands. SELECT - extracts data from a database. UPDATE - updates data in a database. DELETE - deletes data from a database. INSERT INTO - inserts new data into a database. CREATE DATABASE - creates a new database. ALTER DATABASE - modifies a database.

6. W3Schools Online Web Tutorials

   www.w3schools.com/?trk=lms-blog-liproduct&src=bl-po

   Track your progress - it's free! Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

7. SQL Tryit Editor v1.6 - W3Schools

   www.w3schools.com/sql/trysql.asp?filename=trysql_select_all

   W3Schools has created an SQL database in your browser. The menu to the right displays the database, and will reflect any changes. Feel free to experiment with any SQL statement. You can restore the database at any time. The Try-SQL Editor. at w3schools.com.

8. What is SQL? - W3Schools

   www.w3schools.com/whatis/whatis_sql.asp

   This has been a short introduction to SQL. For a full SQL tutorial go to W3Schools SQL Tutorial. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

9. SQL Stored Procedures for SQL Server - W3Schools

   www.w3schools.com/SQL/sql_stored_procedures.asp

   What is a Stored Procedure? A stored procedure is a prepared SQL code that you can save, so the code can be reused over and over again. So if you have an SQL query that you write over and over again, save it as a stored procedure, and then just call it to execute it.

10. SQL Online Editor (Compiler) - W3Schools

    www.w3schools.com/sql/sql_editor.asp

    SQL Editor. With our online SQL editor, you can edit SQL statements, and view the result in your browser. Click on the "Try it Yourself" button to see how it works.

11. SQL WHERE Clause - W3Schools

    www.w3schools.com/SQl/sql_where.asp

    The WHERE clause is used to filter records. It is used to extract only those records that fulfill a specified condition.