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SQL Standard Features
"Use standard features!"
Ensure that your SQL isn't caught in the vendor-specific trap. You can maintain portability using our Mimer SQL Validators to test that your SQL statements conform to the SQL standard, and to what standard level they reside.
SQL-2003, Core SQL-2003 and Features
The SQL-2003 standard specification is comprised of Core SQL-2003, a subset of SQL-2003, which is the
minimal conformance level for SQL-2003 and various optional packages of features.
Core SQL-2003 includes: all of Entry SQL-92, much of Transitional and Intermediate
SQL-92, some of Full SQL-92 and SQL-99 features, as well as new features from SQL-2003.
SQL-99, Core SQL-99 and Features
The SQL-99 standard specification is comprised of Core SQL-99, a subset of SQL-99, which is the
minimal conformance level for SQL-99 and various optional packages of features. Core SQL-99 was introduced
to encourage DBMS vendors to implement SQL-99.
Core SQL-99 includes: all of Entry SQL-92, much of Transitional and Intermediate SQL-92, some of Full SQL-92 and some SQL-99 features.
SQL Standard Feature overviews
See the following overview charts:
Note!
For details on SQL-92, please see the FIPS publication of the standard Database Language SQL (FIPS PUB 127-2).
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