Mysql通过存储过程实现修改数据库名，包含储过程源码

Posted 2021-06-17 何以解忧 `唯有暴富

mysql通过存储过程实现修改数据库名，oldtable5是old库 oldtable6是新库，调用call rename_table(\'oldtable5\',\'oldtable6\');

第一步、创建存储过程

CREATE DEFINER=`root`@`%` PROCEDURE `rename_table`(IN oldname VARCHAR(100),IN newname VARCHAR(100))
BEGIN
	 declare v_sql varchar(500);
     declare tab_name varchar(200);
     DECLARE flag INT DEFAULT FALSE; -- 自定义控制游标循环变量,默认false 
     DECLARE C_RESULT CURSOR FOR
             (select table_name from information_schema.`TABLES` where TABLE_SCHEMA = oldname);
	 DECLARE CONTINUE HANDLER FOR NOT FOUND SET flag = TRUE;
     set v_sql= concat(\'Create database \',newname);
     set @sql=v_sql;