MYSQL将表名称修改成大写的存储过程

#call uppercase('库名')
DROP PROCEDURE IF EXISTS uppercase; 
CREATE PROCEDURE uppercase(IN dbname VARCHAR(200)) 
BEGIN 
 
DECLARE done INT DEFAULT 0; 
 
DECLARE oldname VARCHAR(200); 
 
DECLARE cur CURSOR FOR SELECT table_name FROM information_schema.TABLES WHERE table_schema = dbname; 
 
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1; 
 
OPEN cur; 
 
REPEAT 
 
FETCH cur INTO oldname; 
 
SET @newname = UPPER(oldname); 
SET @isNotSame = @newname <> BINARY oldname; 
IF NOT done && @isNotSame THEN 
SET @SQL = CONCAT('rename table `',oldname,'` to `', LOWER(@newname), '_tmp` '); 
PREPARE tmpstmt FROM @SQL; 
EXECUTE tmpstmt; 

SET @SQL = CONCAT('rename table `',LOWER(@newname),'_tmp` to `',@newname, '`'); 
PREPARE tmpstmt FROM @SQL; 
EXECUTE tmpstmt; 
 
DEALLOCATE PREPARE tmpstmt; 
 
END IF; 
UNTIL done END REPEAT; 
CLOSE cur; 
END