SQL/Schemata
The SQL/Schemata, or Information and Definition Schemas, part of the SQL standard is defined by ISO/IEC 9075-11:2008. SQL/Schemata defines the information schema and definition schema, providing a common set of tools to make SQL databases and objects self-describing. These tools include the SQL object identifier[<span title="Script error: No such module "decodeEncode".">clarification needed], structure[<span title="Script error: No such module "decodeEncode".">clarification needed] and integrity constraints, security and authorization specifications[<span title="Script error: No such module "decodeEncode".">clarification needed], features and packages[<span title="Script error: No such module "decodeEncode".">clarification needed] of ISO/IEC 9075, support of features provided by SQL-based DBMS implementations, SQL-based DBMS implementation information and sizing items[<span title="Script error: No such module "decodeEncode".">clarification needed], and the values supported[<span title="Script error: No such module "decodeEncode".">clarification needed] by the DBMS implementations.[1] SQL/Schemata defines a number of features, some of which are mandatory.
See also
- Data Definition Language (CREATE, ALTER, DROP...)
- SQL:2003 (Introduced SQL/Schemata)
- Data dictionary
References
- ^ Page Module:Citation/CS1/styles.css has no content.ISO/IEC 9075-11:2008: Information and Definition Schemas (SQL/Schemata), 2008, p. 1
External links
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