This part of ISO/IEC 9075 defines the data structures and basic operations on SQL-data. It provides functional capabilities for creating, accessing, maintaining, controlling, and protecting SQL-data.
This part of ISO/IEC 9075 specifies the syntax and semantics of a database language:
- For specifying and modifying the structure and the integrity constraints of SQL-data.
- For declaring and invoking operations on SQL-data and cursors. - For declaring database language procedures.
- For embedding SQL-statements in a compilation unit that otherwise conforms to the standard for a particular programming language (host language).
- For deriving an equivalent compilation unit that conforms to the particular programming language standard.
In that equivalent compilation unit, each embedded SQL-statement has been replaced by one or more statements in the host language, some of which invoke an SQL externally-invoked procedure that, when executed, has an effect equivalent to executing the SQL-statement.
- For direct invocation of SQL-statements.
- To support dynamic preparation and execution of SQL-statements.
This part of ISO/IEC 9075 provides a vehicle for portability of data definitions and compilation units between SQL-implementations.
This part of ISO/IEC 9075 provides a vehicle for interconnection of SQL-implementations. Implementations of this part of ISO/IEC 9075 may exist in environments that also support application programming languages, end-user query languages, report generator systems, data dictionary systems, program library systems, and distributed communication systems, as well as various tools for database design, data administration, and performance optimization.
