TRUNCATE
Name
TRUNCATE -- empty a table
Synopsis
TRUNCATE [ TABLE ] nameDescription
TRUNCATE quickly removes all rows from a table. It has the same effect as an unqualified DELETE but since it does not actually scan the table it is faster. This is most useful on large tables.
Parameters
- name
The name (optionally schema-qualified) of the table to be truncated.
Notes
TRUNCATE cannot be used if there are foreign-key references to the table from other tables. Checking validity in such cases would require table scans, and the whole point is not to do one.
TRUNCATE will not run any user-defined ON DELETE triggers that might exist for the table.
Examples
Truncate the table bigtable:
TRUNCATE TABLE bigtable;
Compatibility
There is no TRUNCATE command in the SQL standard.
