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This article is about SQL:1999
, a revision of the SQL
standard. For more information about SQL, see the main SQL
SQL:1999 is the fourth revision of the SQL database query language. The latest revision of the standard is SQL:2008.
The SQL:1999 standard, also known as SQL3, was published in 1999. Unlike previous editions, the standard's name used a colon instead of a hyphen for consistency with the names of other ISO standards. SQL:1999 has several parts:
Boolean data types
The SQL:1999 standard clearly state in ISO/IEC 9075-2:1999 section 4.6 Boolean types, but many commercial SQL Servers (Microsoft SQL Server 2005, Oracle 9i, IBM DB2) do not support it as a table type, variable type or allow it in the results set. MySQL interprets "BOOLEAN" as a synonym for TINYINT (8-bit signed integer).
- Lans, Rick F. van der (2007). SQL for MySQL developers: a comprehensive tutorial and reference. Upper Saddle River, NJ: Addison Wesley. pp. vii-1004. ISBN 9780131497351.