Changes

SQL created by EF Codd at IBM (see his paper the relational model) is [[Structured Query Language]], a language for manipulating large data tables within a database.  Most relational databases support the use of SQL.  Users ask for the data they write a "[[database query|query]]" using SQL and the database quickly returns the data.   

SQL created by EF Codd at IBM (see his paper the relational model) is [[Structured Query Language]], a language for manipulating large data tables within a database.  Most relational databases support the use of SQL.  Users ask for the data they write a "[[database query|query]]" using SQL and the database quickly returns the data.   

=== Available Databases ===

== Available Databases ==

There are some big database vendors in the software business such as Oracle, IBM's DB2, SAP, SYBASE, Microsoft SQL Server, Versant as well as some free software alternatives such as postgresql, firebird, and MySQL.

There are some big database vendors in the software business such as Oracle, IBM's DB2, SAP, SYBASE, Microsoft SQL Server, Versant as well as some free software alternatives such as postgresql, firebird, and MySQL.

[[Category:Software]]

[[Category:Software]]