doukezi4606 2014-08-12 07:18
浏览 338
已采纳

Mysql:从另一个中减去一列的数据[关闭]

I would like to subtract one column of data from another, namely gdded from gppy; both are stored in a MySQL database.

Here is my code but it seems there is something wrong. I've searched anywhere but I cannot find the right answer.

My script below

INSERT INTO denmrk 
(EMPID, NAME, DATE_FR, DATE_TO, Tangkay, Alis, gppy, gdded , NET_PAY, SSS_comboE, IBG_EMPLYE, PROCESSED_DATE)
VALUES
(6666, 'JUAN DELACRUZ', '2014-02-01 00:00:00', '2014-02-01 00:00:00', 'BBBB CO', 'DRIVER', 3383.04, 300, gppy- gdded , 150, 150, GETDATE() );

With the given code and implied database structure, how can I can achieve this?

  • 写回答

1条回答 默认 最新

  • doutu1939 2014-08-12 08:02
    关注

    BTW there is no need to store the manipulated result in the database. You can do this when you are select the data from the database. SO it would be better to drop that col and the idea to store the calc result in the database as well.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 求差集那个函数有问题,有无佬可以解决
  • ¥15 【提问】基于Invest的水源涵养
  • ¥20 微信网友居然可以通过vx号找到我绑的手机号
  • ¥15 寻一个支付宝扫码远程授权登录的软件助手app
  • ¥15 解riccati方程组
  • ¥15 display:none;样式在嵌套结构中的已设置了display样式的元素上不起作用?
  • ¥15 使用rabbitMQ 消息队列作为url源进行多线程爬取时,总有几个url没有处理的问题。
  • ¥15 Ubuntu在安装序列比对软件STAR时出现报错如何解决
  • ¥50 树莓派安卓APK系统签名
  • ¥65 汇编语言除法溢出问题