ISO/IEC 9075-11:2016 speci?es an Information Schema and a De?nition Schema that describes:
- The structure and integrity constraints of SQL-data.

- The security and authorization speci?cations relating to SQL-data.

- The features and subfeatures of ISO/IEC 9075, and the support that each of these has in an SQL-implementation.

- The SQL-implementation information and sizing items of ISO/IEC 9075 and the values supported by an SQL-implementation