您的当前位置:首页You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version
来源:锐游网
前言
使用SQLyog添加DOUBLE字段报错
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') NULL COMMENT '里程数' after `d_id`' at line 2
ALTER TABLE `enterprise_car`.`order` ADD `o_mileage2` DOUBLE(2) NULL AFTER `d_id`
原因一
SQL有问题
正确SQL格式
之前写只写了10,没有写精度
正确写法
ALTER TABLE `enterprise_car`.`order` ADD COLUMN o_mileage DOUBLE(10,2) COMMENT '里程数'
注意SQL格式问题
原因二
关键字问题使用关键字就会 报错,加引号
UPDATE ORDER SET c_id=?, CONDITION=? WHERE (o_id = '2009')
UPDATE `order` SET c_id=?, `condition`=? WHERE (o_id = '2009')
原因三
SQL格式是真的有问题
UPDATE `order` WHERE (o_id = '2009')
UPDATE `order` SET c_id=? WHERE (o_id = '2009')
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