在加入聲明中使用案例Oracle

Question

我一直在嘗試是否可以有條件地連接兩個表。下面是我做的一個例子，但它返回一個錯誤ORA-00905：缺少關鍵字。

WITH rejects AS 
(
    SELECT 
    c.containername 
    , c.containerid 
    , rlhd.waferscribenumber 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_BLISTER', rlhd.totalqty)), 0) WLP_BLISTER 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_CAMTEKREJECTS', rlhd.totalqty)), 0) WLP_CAMTEKREJECTS 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_CHIP-OUT', rlhd.totalqty)), 0) WLP_CHIPOUT 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_LIQUID_CONTAM', rlhd.totalqty)), 0) WLP_LIQUID_CONTAM 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_OPAQUE_CONTAM', rlhd.totalqty)), 0) WLP_OPAQUE_CONTAM 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_CORROSION', rlhd.totalqty)), 0) WLP_CORROSION 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_CRACKED_OR_BROKEN_WAFER', rlhd.totalqty)), 0) WLP_CRACKED_OR_BROKEN_WAFER 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_DIFFUSION_FAULT', rlhd.totalqty)), 0) WLP_DIFFUSION_FAULT 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_EDGE_DIE', rlhd.totalqty)), 0) WLP_EDGE_DIE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_EXCESSMETAL', rlhd.totalqty)), 0) WLP_EXCESSMETAL 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_EXCESS_PROBE_MARK', rlhd.totalqty)), 0) WLP_EXCESS_PROBE_MARK 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_FADED_INK', rlhd.totalqty)), 0) WLP_FADED_INK 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_FLY-OFF_DIE', rlhd.totalqty)), 0) WLP_FLYOFF_DIE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_FOREIGN_MATERIALS', rlhd.totalqty)), 0) WLP_FOREIGN_MATERIALS 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_GLASSIVATION', rlhd.totalqty)), 0) WLP_GLASSIVATION 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_INCOMPLETETRIM', rlhd.totalqty)), 0) WLP_INCOMPLETETRIM 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_INK_SPLATTER', rlhd.totalqty)), 0) WLP_INK_SPLATTER 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_LASERPINHOLE', rlhd.totalqty)), 0) WLP_LASERPINHOLE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_LASERTRIM', rlhd.totalqty)), 0) WLP_LASERTRIM 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_LIGHT_HAZES', rlhd.totalqty)), 0) WLP_LIGHT_HAZES 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_METAL_BRIDGE', rlhd.totalqty)), 0) WLP_METAL_BRIDGE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_METAL_VOID', rlhd.totalqty)), 0) WLP_METAL_VOID 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_MISALIGN_SCRIBE', rlhd.totalqty)), 0) WLP_MISALIGN_SCRIBE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_OTHERS', rlhd.totalqty)), 0) WLP_OTHERS 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_PASSIVATION_FAULT', rlhd.totalqty)), 0) WLP_PASSIVATION_FAULT 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_PROBE_DAMAGE', rlhd.totalqty)), 0) WLP_PROBE_DAMAGE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_METAL_SCRATCH_OVER', rlhd.totalqty)), 0) WLP_METAL_SCRATCH_OVER 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_METAL_SCRATCH_UNDER', rlhd.totalqty)), 0) WLP_METAL_SCRATCH_UNDER 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_THROWAWAY_DIES', rlhd.totalqty)), 0) WLP_THROWAWAYDIES 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_UNPROBE_DIE', rlhd.totalqty)), 0) WLP_UNPROBE_DIE 
    , NVL(MAX(DECODE(rlhd.LossReasonName, 'WLP_WO_LETTER_EFG', rlhd.totalqty)), 0) WLP_WO_LETTER_EFG 
    FROM CONTAINER c 
    JOIN a_rejectlothistory rlh ON c.containerid = rlh.historyid 
    JOIN a_rejectlothistorydetails rlhd ON rlh.rejectlothistoryid = rlhd.rejectlothistoryid 
    WHERE rlhd.specname IN ('8810_DS_VISUAL_INS_WS', '8810_WS_VISUAL_INS_WS', '7202_POST_WAFFLE_PACK_INSPECTION_WS') 
    GROUP BY c.containername 
      , c.containerid 
      , rlhd.waferscribenumber 
    ORDER BY c.containername 
) 

SELECT DISTINCT 
    SUBSTR((SELECT(otherdb.pkg_calendar.fncalendar(wl.moveouttimestamp, 'YYYYWW')) AS wwkdate FROM dual), 0, LENGTH((SELECT(otherdb.pkg_calendar.fncalendar(wl.moveintimestamp, 'YYYYWW')) AS wwkdate FROM dual))-2) YEAR 
    , SUBSTR((SELECT(otherdb.pkg_calendar.fncalendar(wl.moveouttimestamp, 'YYYYQ')) AS wwkdate FROM dual), -1) quarter 
    , SUBSTR((SELECT(otherdb.pkg_calendar.fncalendar(wl.moveouttimestamp, 'YYYYWW')) AS wwkdate FROM dual), -2) WW 
    , to_char(wl.moveouttimestamp, 'MM/DD/YYYY HH:MI:SS PM') ddate 
    , CASE WHEN to_char(wl.moveouttimestamp, 'HH24') > 18 THEN 'C3' ELSE 'A2' END shift 
    , c.containername Lotnum 
    , wl.productname device 
    , lw.wafernumber 
    , p.description CATEGORY 
    , wl.moveinqty qty_in 
    , wl.moveoutqty qty_out 
    , DECODE(wl.moveinqty, 0, 'N/A', ROUND((wl.moveoutqty/wl.moveinqty) * 100, 4)) yield 
    , NVL(r.WLP_BLISTER, 0) WLP_BLISTER 
    , NVL(r.WLP_CAMTEKREJECTS, 0) WLP_CAMTEKREJECTS 
    , NVL(r.WLP_CHIPOUT, 0) WLP_CHIPOUT 
    , NVL(r.WLP_LIQUID_CONTAM, 0) WLP_LIQUID_CONTAM 
    , NVL(r.WLP_OPAQUE_CONTAM, 0) WLP_OPAQUE_CONTAM 
    , NVL(r.WLP_CORROSION, 0) WLP_CORROSION 
    , NVL(r.WLP_CRACKED_OR_BROKEN_WAFER, 0) WLP_CRACKED_OR_BROKEN_WAFER 
    , NVL(r.WLP_DIFFUSION_FAULT, 0) WLP_DIFFUSION_FAULT 
    , NVL(r.WLP_EDGE_DIE, 0) WLP_EDGE_DIE 
    , NVL(r.WLP_EXCESSMETAL, 0) WLP_EXCESSMETAL 
    , NVL(r.WLP_EXCESS_PROBE_MARK, 0) WLP_EXCESS_PROBE_MARK 
    , NVL(r.WLP_FADED_INK, 0) WLP_FADED_INK 
    , NVL(r.WLP_FLYOFF_DIE, 0) WLP_FLYOFF_DIE 
    , NVL(r.WLP_FOREIGN_MATERIALS, 0) WLP_FOREIGN_MATERIALS 
    , NVL(r.WLP_GLASSIVATION, 0) WLP_GLASSIVATION 
    , NVL(r.WLP_INCOMPLETETRIM, 0) WLP_INCOMPLETETRIM 
    , NVL(r.WLP_INK_SPLATTER, 0) WLP_INK_SPLATTER 
    , NVL(r.WLP_LASERPINHOLE, 0) WLP_LASERPINHOLE 
    , NVL(r.WLP_LASERTRIM, 0) WLP_LASERTRIM 
    , NVL(r.WLP_LIGHT_HAZES, 0) WLP_LIGHT_HAZES 
    , NVL(r.WLP_METAL_BRIDGE, 0) WLP_METAL_BRIDGE 
    , NVL(r.WLP_METAL_VOID, 0) WLP_METAL_VOID 
    , NVL(r.WLP_MISALIGN_SCRIBE, 0) WLP_MISALIGN_SCRIBE 
    , NVL(r.WLP_OTHERS, 0) WLP_OTHERS 
    , NVL(r.WLP_PASSIVATION_FAULT, 0) WLP_PASSIVATION_FAULT 
    , NVL(r.WLP_PROBE_DAMAGE, 0) WLP_PROBE_DAMAGE 
    , NVL(r.WLP_METAL_SCRATCH_OVER, 0) WLP_METAL_SCRATCH_OVER 
    , NVL(r.WLP_METAL_SCRATCH_UNDER, 0) WLP_METAL_SCRATCH_UNDER 
    , NVL(r.WLP_THROWAWAYDIES, 0) WLP_THROWAWAYDIES 
    , NVL(r.WLP_UNPROBE_DIE, 0) WLP_UNPROBE_DIE 
    , NVL(r.WLP_WO_LETTER_EFG, 0) WLP_WO_LETTER_EFG 
    , wl.specname 
FROM CONTAINER c 
JOIN product p ON c.productid = p.productid 
JOIN a_wiplothistory wl ON c.containerid = wl.containerid 
JOIN a_lotwafers lw ON c.containerid = lw.containerid 
LEFT JOIN rejects r ON CASE WHEN wl.specname = '8810_WS_VISUAL_INS_WS' THEN c.containerid = r.containerid AND lw.waferscribenumber = r.waferscribenumber 
         ELSE c.containerid = r.containerid 
         END 
WHERE c.containername NOT LIKE '%TEST%' AND c.containername NOT LIKE '%TST%' AND wl.specname IN ('8810_DS_VISUAL_INS_WS', '7202_POST_WAFFLE_PACK_INSPECTION_WS', '8810_WS_VISUAL_INS_WS') 
; 

關於如何實現這一點的任何想法？謝謝。

Answer 1

你丟失的關鍵字是這一行：

LEFT JOIN rejects r ON CASE WHEN wl.specname = '8810_WS_VISUAL_INS_WS' THEN c.containerid = r.containerid AND lw.waferscribenumber = r.waferscribenumber 
         ELSE c.containerid = r.containerid 
         END 

我建議你寫這沒有case：

LEFT JOIN rejects r 
ON c.containerid = r.containerid AND 
    ((wl.specname = '8810_WS_VISUAL_INS_WS' AND lw.waferscribenumber = r.waferscribenumber) OR 
    ((wl.specname <> '8810_WS_VISUAL_INS_WS' OR wl.specname IS NULL) 
    ) 

在Oracle中，case語句不能返回一個布爾表達式。你可以寫如下條件：

LEFT JOIN rejects r 
ON c.containerid = r.containerid AND 
    (case when (wl.specname = '8810_WS_VISUAL_INS_WS' then lw.waferscribenumber 
     else r.waferscribenumber 
    end) = r.waferscribenumber 

但我認爲第一種方法更清晰。