数据库实例之错误
上周把五个实例弄完了,出现了一些错误,有的错误犯得极其低级,敲代码最注重的是细心啊! 实例一 :strSQL = SELECT 口令 FROM 系统用户 WHERE用户名=' UserName ', 错误原因: 没加单引号而是双引号, 第 1 个双引号实际上会 和第 2 个双引号配套 所以错误
上周把五个实例弄完了,出现了一些错误,有的错误犯得极其低级,敲代码最注重的是细心啊!
实例一: strSQL = "SELECT 口令 FROM 系统用户 WHERE用户名='" & UserName & "'", 错误原因:没加单引号而是双引号,第1个双引号实际上会 和第2个双引号配套所以错误就出现了.,以及口令前面没加空格。
实例二:在开始程序中打开数据源管理器找不到自己想要的MicrosoftAccess Driver(*.mdb).
打开C:\Windows\SysWOW64里面有个odbcad32.exe打开就可以设置access的数据源了,具体原因还在查询中。
实例三:没有出现什么大的错误,关键在于细心啊。
实例四:
说明数据库中没有找到身份这个项目,在数据源中加入身份这个项目就可以了.
实例五:
原因出现在下面画红框的地方设置的太小。
经过这几周的学习,对数据库有了一定的了解,还要继续努力去学习啊。

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