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  • A Sample To use Update, InnerJoin, When/Case, Exists in SQL Server

    DECLARE @SINKKNO varchar(11),
    @KYOKAYMD varchar(8),
    @LASTUPDATEID varchar(5),
    @LASTUPDPGID varchar(7),
    @SYANAISEQNO varchar(8),
    @TUKAN_TOKUISAKI varchar(17),
    @TUKAN_TOKUISAKI_INP varchar(12),
    @NINUSIKIJI varchar(10),
    @NINUSISECCD varchar(11),
    @NINUSIREFNO varchar(15)
    ;
    SET
        @SINKKNO = '43935442710'
    SET
        @KYOKAYMD = '20170920'
    SET
        @LASTUPDATEID = 'batch'
    SET
        @LASTUPDPGID = 'BC02501'
    SET
        @SYANAISEQNO = '1199S002'
    SET
        @TUKAN_TOKUISAKI = '11200010358669000'
    SET
        @TUKAN_TOKUISAKI_INP = '1000071J0000'
    SET
        @NINUSIKIJI = 'NINUSIKIJI'
    SET
        @NINUSISECCD = 'NINUSISECCD'
    SET
        @NINUSIREFNO = 'NINUSIReference';
        UPDATE
            C_T_EXP
        SET
            [SINKKNO] = @SINKKNO,
            [KYOKAYMD] = @KYOKAYMD,
            [LASTUPDATEYMD] = GETDATE(),
            [LASTUPDATEID] = @LASTUPDATEID,
            [LASTUPDPGID] = @LASTUPDPGID,
            [TUKAN_TOKUISAKI] = @TUKAN_TOKUISAKI,
            [TUKAN_TOKUISAKI_INP] = @TUKAN_TOKUISAKI_INP,
            [NINUSIKIJI] = CASE
                WHEN(
                    P.[NINUSIKIJI] IS NULL
                OR  P.[NINUSIKIJI] = ''
                ) THEN @NINUSIKIJI
                ELSE P.[NINUSIKIJI]
            END,
            [NINUSISECCD] = (CASE
                WHEN(
                    P.[NINUSISECCD] IS NULL
                OR  P.[NINUSISECCD] = ''
                ) THEN @NINUSISECCD
                ELSE P.[NINUSISECCD]
            END),
            [NINUSIREFNO] =( CASE
                WHEN(
                    P.[NINUSIREFNO] IS NULL
                OR  P.[NINUSIREFNO] = ''
                ) THEN @NINUSIREFNO
                ELSE P.[NINUSIREFNO]
            END)
    FROM C_T_EXP
            INNER JOIN C_T_EXP P
            ON C_T_EXP.USYUTDAINO = P.USYUTDAINO
        WHERE
            C_T_EXP.SYANAISEQNO = @SYANAISEQNO
        AND C_T_EXP.DELSGN = 0
        AND 1 = (
                SELECT
                    COUNT(T1.USYUTDAINO)
                FROM
                    [C_T_EXP] T1
                WHERE
                    T1.SYANAISEQNO = @SYANAISEQNO
                AND T1.DELSGN = 0
            )
    Love it, and you live without it
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  • 原文地址:https://www.cnblogs.com/tomclock/p/7625867.html
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