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TRUNCATE

The TRUNCATE statement removes all data from the table in a non-transactional way. TRUNCATE can be thought of as semantically the same as DROP TABLE + CREATE TABLE with the previous definition.

Both TRUNCATE TABLE tableName and TRUNCATE tableName are valid syntax.

Synopsis

TruncateTableStmt:

TruncateTableStmt

OptTable:

OptTable

TableName:

TableName

Examples

mysql> CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY); Query OK, 0 rows affected (0.11 sec) mysql> INSERT INTO t1 VALUES (1),(2),(3),(4),(5); Query OK, 5 rows affected (0.01 sec) Records: 5 Duplicates: 0 Warnings: 0 mysql> SELECT * FROM t1; +---+ | a | +---+ | 1 | | 2 | | 3 | | 4 | | 5 | +---+ 5 rows in set (0.00 sec) mysql> TRUNCATE t1; Query OK, 0 rows affected (0.11 sec) mysql> SELECT * FROM t1; Empty set (0.00 sec) mysql> INSERT INTO t1 VALUES (1),(2),(3),(4),(5); Query OK, 5 rows affected (0.01 sec) Records: 5 Duplicates: 0 Warnings: 0 mysql> TRUNCATE TABLE t1; Query OK, 0 rows affected (0.11 sec)

MySQL compatibility

The TRUNCATE statement in TiDB is fully compatible with MySQL. If you find any compatibility differences, report a bug.

See also

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