数据库锁表 websocket测试 POST 说明 / 示例 https://www.cnblogs.com/jpfss/p/9203541.html show status like 'Table%'; show OPEN TABLES where In_use > 0;
https://www.cnblogs.com/jpfss/p/9203541.html show status like 'Table%'; show OPEN TABLES where In_use > 0;