Question

I’m getting a compiler error on the last CASE statement located in where clause. I can’t seem to figure out what I am doing wrong…any help would be appreciated thank you.

P1: BEGIN
DECLARE cursor1 CURSOR WITH RETURN FOR
    SELECT DISTINCT MPWBIPS.MIP_NO,                                  
        MPWBIPS.ITEM_NO,                                 
        MPWBIPS.MATL_PLNR_ID,                            
        MPWBIPS.ITEM_OBS_STATUS,                       
        MPWBMIT.EXCS_ITEM_COST_TOT,
        MPWBMIP.TRGT_CHGOVR_DATE,
        SLOTLOC.LOT_FROM_EFF_DATE,              
    FROM MPWBIPS MPWBIPS                                          
    INNER JOIN MPWBMIT MPWBMIT 
        ON MPWBMIT.MIP_NO = MPWBIPS.MIP_NO             
        AND MPWBMIT.ITEM_NO = MPWBIPS.ITEM_NO 
    INNER JOIN MPPLNR MPPLNR
        ON MPWBIPS.MATL_PLNR_ID = MPPLNR.MATL_PLNR_ID
    INNER JOIN MPWBMIP MPWBMIP
        ON MPWBIPS.MIP_NO = MPWBMIP.MIP_NO
    INNER JOIN SMPROJ_DPIMS SMPROJ
        ON MPWBIPS.MIP_NO = SMPROJ.MIP_NO
    INNER JOIN SLOTLOC_DPIMS SLOTLOC
        ON SMPROJ.MFG_CHGOVR_PER = SLOTLOC.LOT

    WHERE plannerID =
        CASE WHEN mgrIndc = 'Y' THEN
            MPPLNR.MGR_LID
        WHEN suprvIndc = 'Y' THEN
            MPPLNR.SPRVSR_LID
        WHEN plannerID = '' THEN
            ''
        ELSE
            MPPLNR.MATL_PLNR_ID
        END

        AND CASE WHEN obsStatus = 'ACTION' THEN
                    MPWBIPS.ITEM_OBS_STATUS <> 'RESOLVED 99'
                    AND MPWBIPS.ITEM_OBS_STATUS <> 'EXCESS 90'
                WHEN obsStatus = 'ALL' OR obsStatus = '' THEN
                    obsStatus = ''
                ELSE
                    MPWBIPS.ITEM_OBS_STATUS = obsStatus
                END
        AND (COALESCE(mipNo, '') = '' OR MPWBIPS.MIP_NO = mipNo);
OPEN cursor1;

END P1

Answer 1

You can’t nest case statement within if statement. Consider, rewriting your query.

You are missing case at end. You case statement should be

CASE WHEN obsStatus = 'ACTION' THEN 
MPWBIPS.ITEM_OBS_STATUS <> 'RESOLVED 99'
AND MPWBIPS.ITEM_OBS_STATUS <> 'EXCESS 90'
WHEN obsStatus = 'ALL' OR obsStatus = '' THEN                     
obsStatus = ''                 
ELSE                     
MPWBIPS.ITEM_OBS_STATUS = obsStatus
END CASE 

EDIT:

<> (not equal) operator is creating problem; you can’t use them there. Not sure whya you are using Not equal in case condition. below two line

MPWBIPS.ITEM_OBS_STATUS <> 'RESOLVED 99'
AND MPWBIPS.ITEM_OBS_STATUS <> 'EXCESS 90' 

probably make your Where condition something like this:

WHERE plannerID = 
(CASE WHEN mgrIndc = 'Y' THEN             
MPPLNR.MGR_LID         
WHEN suprvIndc = 'Y' THEN             
MPPLNR.SPRVSR_LID         
WHEN plannerID = '' THEN  ''         
ELSE MPPLNR.MATL_PLNR_ID         
END)          

AND 

((obsStatus = 'ACTION') and (MPWBIPS.ITEM_OBS_STATUS <> 'RESOLVED 99'
 AND MPWBIPS.ITEM_OBS_STATUS <> 'EXCESS 90'))

or

((obsStatus = 'ALL' OR obsStatus = '') and (obsStatus = ''))

or

MPWBIPS.ITEM_OBS_STATUS = obsStatus

AND 

(COALESCE(mipNo, '') = '' OR MPWBIPS.MIP_NO = mipNo);