感謝原文博主https://blog.csdn.net/Hyo555/article/details/81943340

還有些經常用到的mysql語句

-- 新增表結構
DROP TABLE IF EXISTS `servicnn`;
CREATE TABLE `servin` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `operation_unit` varchar(100) DEFAULT NULL COMMENT '運',
  `create_time` datetime DEFAULT NULL COMMENT '創間',
  PRIMARY KEY
 
 (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='數';


--新增表字段
ALTER TABLE risly ADD `lintype` varchar(255) DEFAULT NULL COMMENT '型別';
ALTER TABLE pply ADD `lipe` varchar(255) DEFAULT NULL COMMENT '型別';

--刪除表字段
ALTER TABLE risl_apply drop `lin_type`;
ALTER TABLE ripply drop `linype`;

 
--插入資料
INSERT INTO dblic(ste, ey, pde, me, cments, dea) VALUES ("ORKET", "5", "5", "核", "數階段", 2);

--刪除資料
DELETE FROM dublic WHERE ste = "KET" AND pky = "5";