CREATE TABLE LIKE

CREATE TABLE LIKE 语句用于复制已有表的定义,但不复制任何数据。

语法图

CreateTableStmt:

CreateTableStmt

LikeTableWithOrWithoutParen:

LikeTableWithOrWithoutParen

TableName:

TableName

示例

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)

MySQL 兼容性

CREATE TABLE LIKE 语句与 MySQL 完全兼容。如有任何兼容性差异,请在 GitHub 上提交 issue

另请参阅