SQL Development

This section provides information to help you program with SQL.

Note: Execution of a DDL operation blocks execution of any other DDL operation on the same table until execution of the first DDL operation is complete. DML read operations can execute concurrently with a DDL operation. For concurrent DML write operations and DDL operations, use the LOCK command prior to the DDL operation.

The following SQL reference information is also available:

See the following topics: