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ACCESS 通配符问题

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Release: 2016-06-07 15:42:31
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今天做了个小练习碰到一个 问题 如下 在ACCESS里面 *代表任意多个字符 所以我用.NET 做程序的时候这么写 string strsql=select * from infor where types like '*52*' 然后用.NET执行这句SQL 语句结果不行! 我有分别试了下面两句还是不行。 string strsql=@

今天做了个小练习碰到一个问题如下

在ACCESS里面 *代表任意多个字符

所以我用.NET 做程序的时候这么写

string strsql=select * from infor where types like '*52*'

然后用.NET执行这句SQL 语句结果不行!

我有分别试了下面两句还是不行。

string strsql=@select * from infor where types like '*52*'

string strsql=select * from infor where types like '%52%'

最后我用了

string strsql=@select * from infor where types like '%52%'

 

我想问问既然在ACCESS里面 可以用* 匹配符,为什么.NET这么写(第一条,第三条)招不到数据,反而第最后条能找到数据?

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