将列与过程的值进行比较

我有一个要评估的值列表。下面提供将列与过程的值进行比较

'16-%', '45-%','A1%','125%'

实施例然后，我有1列，它是一个存储过程的输出和第4列，其获得由混叠左外返回联接

例如：

Max(db_util.Efn_name_wid(tdl_tran.reason_code_id, 
       remit_rmc.remit_code_id, remit_rmc.remit_code_name, 'Reason') 
) AS DEN_REASON 

, Max(RMC_1.remit_code_name) 
     AS REMIT_CD1 

,Max(RMC_2.remit_code_name) 
     AS REMIT_CD2 

,Max(RMC_3.remit_code_name) 
     AS REMIT_CD3 

,Max(RMC_4.remit_code_name) 
     AS REMIT_CD4

逻辑我我试图建立的是：

如果DEN_REASON like（列表中的任何值）

然后，如果它与列表中的任何值匹配，则对列remit_cd1进行评估，然后继续remit_cd2，remit_cd3，remit_cd4，直到找到与列表中的值不匹配的第一个汇款代码。

最终试图返回一个值。

来源

2017-08-11 Jeff Barnes

我觉得这个CASE语句可能是你需要的东西：

SELECT CASE 
    WHEN DEN_REASON LIKE (/* your set of values */) 
     AND REMIT_CD1 LIKE (/* your set of values */) 
     AND REMIT_CD2 LIKE (/* your set of values */) 
     AND REMIT_CD3 LIKE (/* your set of values */) 
     AND REMIT_CD4 NOT LIKE (/* your set of values */) 
     THEN REMIT_CD4 
    WHEN DEN_REASON LIKE (/* your set of values */) 
     AND REMIT_CD1 LIKE (/* your set of values */) 
     AND REMIT_CD2 LIKE (/* your set of values */) 
     AND REMIT_CD3 NOT LIKE (/* your set of values */) 
     THEN REMIT_CD3 
    WHEN DEN_REASON LIKE (/* your set of values */) 
     AND REMIT_CD1 LIKE (/* your set of values */) 
     AND REMIT_CD2 NOT LIKE (/* your set of values */) 
     THEN REMIT_CD2 
    WHEN DEN_REASON LIKE (/* your set of values */) 
     AND REMIT_CD1 NOT LIKE (/* your set of values */) 
     THEN REMIT_CD1 
    WHEN DEN_REASON NOT LIKE (/* your set of values */) 
     THEN DEN_REASON 
    END AS YourSingleResult 

FROM --your query 
( SELECT 
    Max(db_util.Efn_name_wid(tdl_tran.reason_code_id, 
     remit_rmc.remit_code_id, remit_rmc.remit_code_name, 'Reason') 
     ) AS DEN_REASON 
    ,Max(RMC_1.remit_code_name) AS REMIT_CD1 
    ,Max(RMC_2.remit_code_name) AS REMIT_CD2 
    ,Max(RMC_3.remit_code_name) AS REMIT_CD3 
    ,Max(RMC_4.remit_code_name) AS REMIT_CD4 
    -- and the rest of your query, that you omitted from your example above 
)

话又说回来，它可能会，如果你在你的子查询没有你的LIKE evals更短。像这样：

SELECT CASE 
    WHEN MatchesDenReason = 1 
     AND MatchesCD1 = 1 
     AND MatchesCD2 = 1 
     AND MatchesCD3 = 1 
     AND MatchesCD4 = 0 
     THEN REMIT_CD4 
    WHEN MatchesDenReason = 1 
     AND MatchesCD1 = 1 
     AND MatchesCD2 = 1 
     AND MatchesCD3 = 0 
     THEN REMIT_CD3 
    WHEN MatchesDenReason = 1 
     AND MatchesCD1 = 1 
     AND MatchesCD2 = 0 
     THEN REMIT_CD2 
    WHEN MatchesDenReason = 1 
     AND MatchesCD1 = 0 
     THEN REMIT_CD1 
    WHEN MatchesDenReason = 0 
     THEN DEN_REASON 
    END AS YourSingleResult 

FROM --your query 
( SELECT 
    Max(db_util.Efn_name_wid(tdl_tran.reason_code_id, 
     remit_rmc.remit_code_id, remit_rmc.remit_code_name, 'Reason') 
     ) AS DEN_REASON 
    ,CASE WHEN Max(db_util.Efn_name_wid(tdl_tran.reason_code_id, 
     remit_rmc.remit_code_id, remit_rmc.remit_code_name, 'Reason') 
     ) LIKE (/* your list */) 
      THEN 1 ELSE 0 END AS MatchesDenReason 
    ,Max(RMC_1.remit_code_name) AS REMIT_CD1 
    ,CASE WHEN Max(RMC_1.remit_code_name) LIKE (/* your list */) 
      THEN 1 ELSE 0 END AS MatchesCD1 
    ,Max(RMC_2.remit_code_name) AS REMIT_CD2 
    ,CASE WHEN Max(RMC_2.remit_code_name) LIKE (/* your list */) 
      THEN 1 ELSE 0 END AS MatchesCD2 
    ,Max(RMC_3.remit_code_name) AS REMIT_CD3 
    ,CASE WHEN Max(RMC_3.remit_code_name) LIKE (/* your list */) 
      THEN 1 ELSE 0 END AS MatchesCD3 
    ,Max(RMC_4.remit_code_name) AS REMIT_CD4 
    ,CASE WHEN Max(RMC_4.remit_code_name) LIKE (/* your list */) 
      THEN 1 ELSE 0 END AS MatchesCD4 
    -- and the rest of your query, that you omitted from your example above 
)

来源

2017-08-11 17:49:41 tgolisch

将列与过程的值进行比较

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