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      VB.net 2010 視頻教程 VB.net 2010 視頻教程 VB.net 2010 視頻教程
      SQL Server 2008 視頻教程 c#入門經典教程 Visual Basic從門到精通視頻教程
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      首頁 > 數據庫 > T-SQL >
      • sql語句大全之

      • 2019-05-03 16:52 來源:未知

      1 可實現功能區別

      sql 存儲過程:由(select insert update delete)關鍵字和過程控制關鍵字(while set if else cursor goto …)組成相關sql語句,來實現邏輯和流程控制
      和返回信息給客戶端
      CLR存儲過程:可實現sql存儲過程中,所有的功能外,還可通過調用.net api實現更復雜的功能,例 發送郵件 監控系統運行狀況,訪問網絡…



      2 運行效率區別

      sql 存儲過程:對于一些計算和字符串處理等特殊操作,需要使用多重腳本才能實現相應的功能,增加計算的復雜度,
      對于數據獲取上,由于sql存儲過程直接運行在DB服務器上,所以獲取數據的效率高于CLR存儲過程。
      CLR 觸發器:可以調用.net豐富的API 函數庫,補充sql查詢語言表達能力,處理一些特殊的計算,clr存儲法在一些復雜的邏輯處理上擁有更好的性能。

      3 提交sql方式區別


      3.1 數據返回方式不同

      sql 存儲過程:只需一個sql腳本就可以運行相關操作,就可以將數據返回給客戶端
      clr存儲過程:需要通過sqlpipe對象將結果返回客戶端

      3.2 提交sql語句的方式不同

      sql存儲過程: 直接同DB服務器更新交互
      clr存儲過程:需要采用ado.net的方式提交sql至db服務器

       

      本條目發布于 。屬于管理系統[ERP]分類,被貼了 MSSQL、sql、數據庫 標簽。
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