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Linq To Sql 項目從Beta遷移到RTM要注意那些事項呢?RTM相對beta又做了那些變動呢?本文為你揭開這些問題。這裡,我們只談項目中經常碰到的,其他的略去不寫。你若是有疑問,可以回貼問,我再幫你找。最後,放出修本文檔。特別感謝伍迷TX的督促。1,函數名稱的改變在添加,更新和刪除實體物件時,本blog中的Linq To Sql進階系列(三)CUD和Log 一文中所提及的,其函數名更改如下。Beta 2 NameRTM
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在sql語句中,有些特殊字元,是sql保留的。比如 ' [ ] 等。我們可以先看看它們的用法。當需要查詢某資料時,加入條件陳述式,或著當你需要insert記錄時,我們用 ' 來將字元類型的資料引起來。比如:Select * from Customers where City = 'London'當表的名字或列的名字中,含有空格等一些特殊字元時,我們需要用[] 將表名引起來,告訴文法分析器,[]號內的才是一個完整的名稱。比如Select * from [Order
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Linq To Sql是Microsoft開發的針對解決data!=object問題的新技術。在筆者的一系列的文章中,對它已經做了大量的介紹。現在,筆者將從經驗的角度,談談它的優劣.1,Linq To Sql的優點在Linq To Sql推出之前,我們只是把sql語句形成一個string,然後,通過ado.net傳給sql server,返回結果集.這裡的缺陷就是,如果你sql語句寫的有問題,只有到運行時才知道.而且並不所有的人都懂資料庫的。Linq To SQl
By AnthonyBalderrama, CareerBuilder.com writer Celebrity blogs and magazines are plastered with pictures of high-profile actors, athletes and business leaders, so you might think thatthese occupations are your only route to wealth.If you want to
When someone accepts an invitation to join your network (A group of people someone communicates and shares with onWindows Live. Someone's network includes people they've added to their profile,to their Messenger contacts, or both. People in
How To Learn English!Here are some tips which may help youto master the English Language!Speak withoutFearThe biggest problem most people face inlearning a new language is their own fear. They worry that they won’t say things correctly or that they