CREATE TABLE LIKE
This statement copies the definition of an existing table, without copying any data.
Synopsis
- CreateTableLikeStmt
- OptTemporary
- LikeTableWithOrWithoutParen
- OnCommitOpt
CreateTableLikeStmt ::=
'CREATE' OptTemporary 'TABLE' IfNotExists TableName LikeTableWithOrWithoutParen OnCommitOpt
OptTemporary ::=
( 'TEMPORARY' | ('GLOBAL' 'TEMPORARY') )?
LikeTableWithOrWithoutParen ::=
'LIKE' TableName
| '(' 'LIKE' TableName ')'
OnCommitOpt ::=
('ON' 'COMMIT' 'DELETE' 'ROWS')?
Examples
mysql> CREATE TABLE t1 (a INT NOT NULL);
Query OK, 0 rows affected (0.13 sec)
mysql> INSERT INTO t1 VALUES (1),(2),(3),(4),(5);
Query OK, 5 rows affected (0.02 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> CREATE TABLE t2 LIKE t1;
Query OK, 0 rows affected (0.10 sec)
mysql> SELECT * FROM t2;
Empty set (0.00 sec)
Pre-split region
If the table to be copied is defined with the PRE_SPLIT_REGIONS attribute, the table created using the CREATE TABLE LIKE statement inherits this attribute, and the Region on the new table will be split. For details of PRE_SPLIT_REGIONS, see CREATE TABLE Statement.
MySQL compatibility
The CREATE TABLE LIKE statement in TiDB is fully compatible with MySQL. If you find any compatibility differences, report a bug.