ALTER TABLE...TRUNCATE SUBPARTITION v12

Use the ALTER TABLE… TRUNCATE SUBPARTITION command to remove all of the data from the specified subpartition, leaving the subpartition structure intact. The syntax is:

ALTER TABLE <table_name>
  TRUNCATE SUBPARTITION <subpartition_name>
  [{DROP|REUSE} STORAGE]

Parameters

table_name

The name (optionally schema-qualified) of the partitioned table.

subpartition_name

The name of the subpartition to be truncated.

Description

The ALTER TABLE… TRUNCATE SUBPARTITION command removes all data from a specified subpartition, leaving the subpartition structure intact.

ALTER TABLE… TRUNCATE SUBPARTITION will not cause ON DELETE triggers that might exist for the table to fire, but it will fire ON TRUNCATE triggers. If an ON TRUNCATE trigger is defined for the subpartition, all BEFORE TRUNCATE triggers are fired before any truncation happens, and all AFTER TRUNCATE triggers are fired after the last truncation occurs.

You must have the TRUNCATE privilege on a table to invoke ALTER TABLE… TRUNCATE SUBPARTITION.

The DROP STORAGE and REUSE STORAGE clauses are included for compatibility only; the clauses are parsed and ignored.