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CLR¿ÉÒÔʵÏÖDMLºÍDDLÁ½ÖÖ´¥·¢ÐÎʽ£¬µ«ÊDZ¾ÈËÒ»°ã²»½¨ÒéʹÓÃCLRµÄ´¥·¢Æ÷£¬Ö÷ÒªÊÇ¿¼Âǵ½Ð§ÂÊÎÊÌâ¡£±ÈÈçÎÒÃÇʹÓÃtriggerÀ´ÊµÏÖ·¢mailµÈ²Ù×÷ʱ£¬¾ÍÒª¿¼ÂÇpop3»òÊÇsmtpµÈ´ýʱ¼ä£¬ÒòΪtrigger±¾Ê¾ÍÊǸöÊÂÎñ£¬Ò²¾ÍÊÇ˵£¬ÔÚsmtpµÈ´ýʱ¼äÒ²ËãÔÚÁËÕû¸öÊÂÎñÖУ¬ÕâÑù¾Í»á´ó´óÓ°ÏìЧÂÊ¡£
1.CLR DML´¥·¢Æ÷
DMLÖ¸µÄÊÇÊý¾Ý²Ù×÷ÓïÑÔ£¬Ò²¾ÍÊÇͨ³£µÄinsert,updateºÍdelete²Ù×÷¡£Õâ¸ö´¥·¢Æ÷Ö÷ҪʵÏÖÔÚ¶ÔpubsÊý¾Ý¿âÖеÄauthor±í½øÐÐinsert,update,deleteʱ£¬»áÏÔʾÏàÓ¦µÄ²Ù×÷Ãû³Æ¡£
///
    /// °Ñinsert,update,delete²Ù×÷¶¼ÏÔʾ³öÀ´
    ///
    [Microsoft.SqlServer.Server.SqlTrigger(
        Name = "UF_DML_Trigger",
        Target = "dbo.authors",
        Event = "FOR INSERT, UPDATE, DELETE")]
    public static void UF_DML_Trigger()
    {
        switch (SqlContext.TriggerContext.TriggerAction)
        {
            case TriggerAction.Insert:
                SqlContext.Pipe.Send("Trigger Insert");
                break;
            case TriggerAction.Update:
                SqlContext.Pipe.Send("Trigger Update");
                break;
            case TriggerAction.Delete:
                SqlContext.Pipe.Send("Trigger Delete");
              


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  private string ReArrange(string str)
{
string[] keywords = new string[] {"select","from","where","and","order\\s+by","or","into",
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SELECT /*+ALL+_ROWS*/ EMP_NO,EMP_NAM,DAT_IN from BSEMPMS WHERE EMP_NO='SCOTT';
2. /*+FIRST_ROWS*/
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