Home Database Mysql Tutorial MySQL 的Rename Table语句

MySQL 的Rename Table语句

Jun 07, 2016 pm 05:00 PM

RENAME TABLE current_db.tbl_name TO other_db.tbl_name;当你执行 RENAME 时,你不能有任何锁定的表或活动的事务。你同样也必须

mysql 命令重命名表RENAME TABLE 句法

RENAME TABLE tbl_name TO new_tbl_name[, tbl_name2 TO
new_tbl_name2,...]
更名是以原子方式(atomically)执行,这就意味着,当更名正在运行时,其它的任何线程均不能该表。这使得以一个空表替换一个表成为可能。

CREATE TABLE new_table (...);
RENAME TABLE old_table TO backup_table, new_table TO old_table;
改名是从左到右执行的,这就意味着,,如果你希望交换两个表名,你不得不这样做:

RENAME TABLE old_table    TO backup_table,
             new_table    TO old_table,
             backup_table TO new_table;
只要两个数据库在同一个磁盘上,你也可以从一个数据库更名到另一个数据库:

RENAME TABLE current_db.tbl_name TO other_db.tbl_name;
当你执行 RENAME 时,你不能有任何锁定的表或活动的事务。你同样也必须有对原初表的 ALTER 和 DROP 权限,以及对新表的 CREATE 和 INSERT 权限。

如果在多表更名中,MySQL 遭遇到任何错误,它将对所有被更名的表进行倒退更名,将每件事物退回到最初状态。

RENAME TABLE 在 MySQL 3.23.23 中被加入。

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