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mysql中的保留字段产生的问题

程序员文章站 2024-02-28 16:27:52
you have an error in your sql syntax; check the manual that corresponds to your mysql...

you have an error in your sql syntax; check the manual that corresponds to your mysql server versio····这句话对于咱们并不陌生,无非就是多了“,”之类的问题。但是你如果无意之中添加了一个mysql中的保留字段作为数据库中存贮的字段名,悲剧就这样发生了。

前几天因为功能的临时变更,需要给数据表添加一个字段用来区别导入的批次,我就在mysql中添加了group字段,没想到我的噩梦就此展开·····
  本来程序已经接近收尾,本想着今早来公司给程序来个欢乐的结尾,没想到····每次导入excel表总是提示我sql语句错误,我变在sql语句上添添减减,也没有把错误搞定,整整一个上午外加下午两个小时,简直已经到了抓狂的程度。简直要跪地苦思冥想,但是还是没有搞定这个错误。
  把问题放在一边,继续搞其他的东西····当在写一个group by 语句时,突然意识到,group 是mysql的一个保留字,就此问题迎刃而解。切记切记,多么痛的领悟啊

mysql的保留字段

在mysql中,下表中的字显式被保留。其中大多数字进制被标准sql用作列名和/或表名(例如,group)。少数被保留了,因为mysql需要它们,在mysql中,当表名或字段名乃至数据库名和保留字冲突时,在sql语句里可以用撇号()括起来,当让我们一般都尽量少使用这些保留的字段。

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