MySQL 存储过程检测表是否存在

SELECT COUNT(*) FROM information_schema.`TABLES` WHERE TABLE_NAME='youTableName';

CREATE DEFINER = `root`@`localhost` FUNCTION `tableExists`(`tName` varchar(30))
RETURNS tinyint(4)
BEGIN
DECLARE tableExists TINYINT DEFAULT 0;
SELECT 1 INTO tableExists FROM information_schema.`TABLES` WHERE TABLE_NAME=tName;
RETURN tableExists;
END;