SQL - 删除重复的行

时间:2015-05-11 16:28:10

标签: sql sql-server-2008

我开发了以下SQL。基本上有2个表。在本SQL的第一部分中,我将table 1加入table 2并提取table 1中的所有记录以及table 1的匹配记录。然后,我对UNION做同样的事情,但这一次,我将table 2加入table 1,并从table 2中提取所有记录并仅匹配来自table 1的记录。

查询的每一半中的UNION是这样我可以在同一列中同时获得固定资产帐户和累计折旧帐户。

我需要这样做,因为table 1而不是table 2中可能有数据,我需要确保我得到所有的差异。正如我所料,结果中返回了重复的行。我有几个问题:

  1. 如何摆脱重复的结果?

  2. 我计算查询的每一半的差异。是否有更好的方法或地点进行此计算?

  3. 这是一种更好的方法吗?

  4. 感谢您对这些问题的帮助?

    SELECT
        a.FA_ACCT,
        a.ERACBR,
        a.deptid,
        a.FA_AMT,
        pgal.pstd_ttl_amt,
        CASE WHEN pgal.pstd_ttl_amt IS NULL THEN a.FA_AMT
        ELSE a.FA_AMT - pgal.pstd_ttl_amt END AS DIFF
    
    FROM 
    
    (SELECT 
                pdr.account_fa AS FA_ACCT,
                ir.erac_branch_lgcy_cd AS ERACBR,
                pdr.deptid,
                SUM(pdr.COST) AS FA_Amt
    
    FROM PSFS.PS_DEPR_RPT pdr 
    
    LEFT JOIN INTGRT_RPT.DIM_LOCATION ir ON pdr.deptid = ir.erac_branch_ps_org_cd AND ir.curr_lrd_row_flg = 1
    
    WHERE pdr.BUSINESS_UNIT = 'A0465'
    AND pdr.BOOK = 'PERFORM'
    AND pdr.FISCAL_YEAR = 2015
    AND pdr.ACCOUNTING_PERIOD = 8
    AND pdr.GROUP_ASSET_FLAG <> 'M'
    --AND ( ? is null or soh.REGION_CD = ?)
    
    GROUP BY FA_ACCT, ERACBR, deptid
    
    UNION All
    
    SELECT
    pdr.account_ad AS FA_ACCT,
    ir.erac_branch_lgcy_cd AS ERACBR,
    pdr.deptid,
    SUM(pdr.depr_ltd) AS FA_Amt
    
    FROM PSFS.PS_DEPR_RPT pdr 
    
    LEFT JOIN INTGRT_RPT.DIM_LOCATION ir ON pdr.deptid = ir.erac_branch_ps_org_cd AND ir.curr_lrd_row_flg = 1
    
    WHERE pdr.BUSINESS_UNIT = 'A0465'
    AND pdr.BOOK = 'PERFORM'
    AND pdr.FISCAL_YEAR = 2015
    AND pdr.ACCOUNTING_PERIOD = 8
    AND pdr.GROUP_ASSET_FLAG <> 'M'
    --AND ( ? is null or soh.REGION_CD = ?)
    
    GROUP BY FA_ACCT, ERACBR, deptid ) a
    
    LEFT JOIN PSFS.PS_GL_ACCT_LDGR PGAL ON a.deptid =pgal.grp_br_ps_org_id
        AND a.fa_acct = pgal.acct_nbr
        AND pgal.fiscal_yr_mth_nbr = 201508
    
    GROUP BY 1,2,3,4,5,6
    
    UNION ALL  
    
    SELECT 
    pgal.acct_nbr AS FA_ACCT,
    ir.erac_branch_lgcy_cd AS ERACBR,
    pgal.grp_br_ps_org_id,
    b.FA_AMT,
    pgal.pstd_ttl_amt,
    
    CASE WHEN b.fa_amt IS NULL THEN pgal.pstd_ttl_amt
        ELSE b.FA_AMT - pgal.pstd_ttl_amt END AS DIFF
    
    FROM psfs.ps_gl_acct_ldgr pgal
    
    LEFT JOIN INTGRT_RPT.DIM_LOCATION ir ON pgal.grp_br_ps_org_id = ir.erac_branch_ps_org_cd AND ir.curr_lrd_row_flg = 1 
    
    LEFT  JOIN 
    
        (SELECT 
                pdr.account_fa AS FA_ACCT,
                pdr.deptid,
                SUM(pdr.COST) AS FA_Amt
    
            FROM PSFS.PS_DEPR_RPT pdr 
    
        WHERE pdr.BUSINESS_UNIT = 'A0465'
        AND pdr.BOOK = 'PERFORM'
        AND pdr.FISCAL_YEAR = 2015
        AND pdr.ACCOUNTING_PERIOD = 8
        AND pdr.GROUP_ASSET_FLAG <> 'M'
        --AND ( ? is null or soh.REGION_CD = ?)
    
        GROUP BY FA_ACCT, deptid
    
    UNION All
    
        SELECT
        pdr.account_ad AS FA_ACCT,
        pdr.deptid,
        SUM(pdr.depr_ltd) AS FA_Amt
    
        FROM PSFS.PS_DEPR_RPT pdr 
    
        WHERE pdr.BUSINESS_UNIT = 'A0465'
        AND pdr.BOOK = 'PERFORM'
        AND pdr.FISCAL_YEAR = 2015
        AND pdr.ACCOUNTING_PERIOD = 8
        AND pdr.GROUP_ASSET_FLAG <> 'M'
        --AND ( ? is null or soh.REGION_CD = ?)
    
        GROUP BY FA_ACCT, deptid) b
    
    ON pgal.grp_br_ps_org_id = b.deptid
    AND pgal.acct_nbr = b.fa_acct
    
    WHERE pgal.fiscal_yr_mth_nbr = 201508
    AND pgal.acct_nbr BETWEEN 130500 AND 160500   
    AND ir.ody_group_cd = 'A0465'
    
    ORDER BY 1, 2
    

0 个答案:

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