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    DECLARE @I INT
-- ±äÁ¿µÄ¸³Öµ£¬±äÁ¿¸³ÖµÊ±±äÁ¿Ç°±ØÐë¼Óset
    SET @I = 30
-- ÉùÃ÷¶à¸ö±äÁ¿
    DECLARE @s varchar(10),@a INT
-- Sql ÀïifÓï¾ä
    IF Ìõ¼þ BEGIN
        Ö´ÐÐÓï¾ä
    END
    ELSE BEGIN
        Ö´ÐÐÓï¾ä
    END
           
    DECLARE @d INT
    set @d = 1
    IF @d = 1 BEGIN
    -- ´òÓ¡
        PRINT 'ÕýÈ·'
    END
    ELSE BEGIN
        PRINT '´íÎó'
    END
-- Sql ÀïµÄ¶àÌõ¼þÑ¡ÔñÓï¾ä.
    DECLARE @iRet INT, @PKDisp VARCHAR(20)
    SET @iRet = 1
    Select @iRet =
    CASE
        WHEN @PKDisp = 'Ò»' THEN 1
        WHEN @PKDisp = '¶þ' THEN 2
        WHEN @PKDisp = 'Èý' THEN 3
        WHEN @PKDisp = 'ËÄ' THEN 4
        WHEN @PKDisp = 'Îå' THEN 5
        ELSE 100
    END
-- Ñ­»·Óï¾ä
    WHILE Ìõ¼þ BEGIN   
        Ö´ÐÐÓï¾ä
    END
    DECLARE @i INT
    SET @i = 1
    WHILE @i<1000000 BEGIN
        set @i=@i+1
    END
    -- ´òÓ¡
    PRINT @i
-- Select INTO ´ÓÒ»¸ö²éѯµÄ¼ÆËã½á¹ûÖд´½¨Ò»¸öÐÂ±í¡£ Êý¾Ý²¢²»·µ»Ø¸ø¿Í»§¶Ë£¬ÕâÒ»µãºÍÆÕͨµÄ
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CREATE TRIGGER trigger_name
ON { table | view }
[ WITH ENCRYPTION ]
{
    { { FOR | AFTER | INSTEAD OF } { [ INSERT ] [ , ] [ UPDATE ] }
        [ WITH APPEND ]
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SELECT TOP 33 id=identity(int,1,1) INTO #1 from sysobjects
SELECT A.id ,B.id,C.id,D.id,E.id,F.id
from #1 A,#1 B,#1 C,#1 D,#1 E,#1 F
WHERE A.ID<B.ID AND A.ID<C.ID AND A.ID<D.ID AND A.ID<E.ID AND A.ID<F.ID
AND B.ID<C.ID AND B.ID<D.ID AND B.ID<E.ID AND B.ID<F.ID
AND C.I ......
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