text: 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 »Examples in Each Chapter
  With our online SQL editor, you can edit the SQL statements, and click on a button to view the result.
  Click on the "Try it Yourself" button to see how it works.
  Learn by examples! This tutorial supplements all explanations with clarifying examples.
  SQL Quiz Test
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  SQL Data Types
  Data types and ranges for Microsoft Access, MySQL and SQL Server.