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比如现在有一人员表 (表名:peosons) 若想将姓名、身份证号、住址这三个字段完全相同的记录查询出来 select p1.* from persons p1,persons p2 where p1.idp2.id and p1.cardid = p2.cardid and p1.pname = p2.pname and p... 阅读全文
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"Operation must use an updateable ",This error occus when I want to update excel using sql. I found many topics which are all about permisson. But my problem is quite different. If you cannot walk aro... 阅读全文
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When a request enter the pipeline, it's handled by an instance of the HttpApplication class. One of the first things HttpApplication does is create an instance of HttpContext and populate it. This con... 阅读全文
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firefox下如何实现window.event.clientX ff的事件传递 在IE中,event.clientX,event.clientY可以用,但是在FF中是不可以的,因为event在IE中是一个全局变量,在FF中是局部变量,所以在FF中使用event对象必须通过参数传递的方式把它传入过程中. Show function showad(e,id) { var ... 阅读全文