mysql通过存储过程简化INSERT和UPDATE_MySQL

存储过程设计如下：

CREATE PROCEDURE `pro_SaveData`(IN `sinst` varchar(500),IN `supdt` varchar(500))
BEGIN
	#直接更新记录
 set @v_updsql=supdt; 
 prepare stmt from @v_updsql; 
 EXECUTE stmt; 
 
	#记录不存在，执行INSERT
	IF ROW_COUNT() =0 THEN
	set @v_intsql=sinst;
 prepare stmt from @v_intsql; 
 EXECUTE stmt; 
	END IF;
deallocate prepare stmt; 
END;

C#调用如下：

int r = data.ExecuteNonQuery(System.Data.CommandType.StoredProcedure,
 @"CALL pro_SaveData (' INSERT INTO `table` VALUES ('1', 'username')',
 'UPDATE table SET name='table222' WHERE id='1';')", null);