SQL Conformance Levels
The level of SQL-92 grammar supported by a driver is indicated by the value returned by a call to SQLGetInfo with the SQL_SQL_CONFORMANCE information type. This indicates whether the driver conforms to the Entry, FIPS Transitional, Intermediate, or Full levels defined in SQL-92.
All ODBC drivers must support the minimum SQL grammar described in SQL Minimum Grammar in Appendix C: SQL Grammar. This grammar is a subset of the Entry level of SQL-92. Drivers may support additional SQL and be conformant to the SQL-92 Entry, Intermediate, or Full level, or to the FIPS 127-2 Transitional level. Drivers that comply to a given level of SQL-92 or FIPS 127-2 can support additional features in any of the higher levels yet not be fully conformant to that level. To determine whether a feature is supported, an application should call SQLGetInfo with the appropriate information type. The conformance level of an SQL feature is described in the corresponding information type. (See the SQLGetInfo function description.)
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