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:
LikeTableWithOrWithoutParen:
TableName:
示例
CREATE TABLE t1 (a INT NOT NULL);
Query OK, 0 rows affected (0.13 sec)
INSERT INTO t1 VALUES (1),(2),(3),(4),(5);
Query OK, 5 rows affected (0.02 sec)
Records: 5 Duplicates: 0 Warnings: 0
SELECT * FROM t1;
+---+
| a |
+---+
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
+---+
5 rows in set (0.00 sec)
CREATE TABLE t2 LIKE t1;
Query OK, 0 rows affected (0.10 sec)
SELECT * FROM t2;
Empty set (0.00 sec)
MySQL 兼容性
CREATE TABLE LIKE
语句与 MySQL 完全兼容。如发现任何兼容性差异,请在 GitHub 上提交 issue。