要獲得一條記錄，如果對於相同的ID存在超過一條記錄，則根據以下條件僅得到一條記錄

Question

例如，如果我在同一個id的列中得到2個空數據，則傳遞null。 ii）如果我在同一個id的列中得到2個相同的非空數據，則傳遞不爲null。 ii）如果我在同一個id的列中得到1個null和1個非空數據，那麼傳遞不爲null。 ii）如果我在同一個id的列中得到2個不同的非空數據，則傳遞'？'。

Sample data

請找到圖像中的樣本數據。

在此先感謝。之後新的代碼

輸出獲得： Result

Answer 1

可以在下面找到像圖像中的採樣數據SQL.If列數據類型是VARCHAR（char）的請刪除TO_CHAR表達，和替換表名TEST_TABLE到你的餐桌。

WITH TEST_TABLE AS (
SELECT 1056059 AS PRTY_KEY_ID, NULL AS TOT_ASSET_AM, NULL AS TOT_LIABILITIES_AM, NULL AS DBUS_NM, 'Pediatrics' AS BUS_NATURE_DE FROM DUAL 
UNION ALL 
SELECT 1056059 AS PRTY_KEY_ID, 5000 AS TOT_ASSET_AM, '300000' AS TOT_LIABILITIES_AM, NULL AS DBUS_NM, 'Medicine' AS BUS_NATURE_DE FROM DUAL 
) 
SELECT 
    PRTY_KEY_ID, 
    MIN(CASE WHEN TOT_ASSET_AM_CNT > 1 THEN '?' ELSE TO_CHAR(TOT_ASSET_AM) END) AS TOT_ASSET_AM, 
    MIN(CASE WHEN TOT_LIABILITIES_AM_CNT > 1 THEN '?' ELSE TO_CHAR(TOT_LIABILITIES_AM) END) AS TOT_LIABILITIES_AM, 
    MIN(CASE WHEN DBUS_NM_CNT > 1 THEN '?' ELSE TO_CHAR(DBUS_NM) END) AS DBUS_NM, 
    MIN(CASE WHEN BUS_NATURE_DE_CNT > 1 THEN '?' ELSE TO_CHAR(BUS_NATURE_DE) END) AS BUS_NATURE_DE 
FROM (
    SELECT 
     TEST_TABLE.*, 
     COUNT(TOT_ASSET_AM) OVER(PARTITION BY PRTY_KEY_ID) AS TOT_ASSET_AM_CNT, 
     COUNT(TOT_LIABILITIES_AM) OVER(PARTITION BY PRTY_KEY_ID) AS TOT_LIABILITIES_AM_CNT, 
     COUNT(DBUS_NM) OVER(PARTITION BY PRTY_KEY_ID) AS DBUS_NM_CNT, 
     COUNT(BUS_NATURE_DE) OVER(PARTITION BY PRTY_KEY_ID) AS BUS_NATURE_DE_CNT 
    FROM TEST_TABLE 
) 
GROUP BY PRTY_KEY_ID 

Answer 2

您可以嘗試以下操作：

SELECT (CASE WHEN PRTY_KEY_ID_NN= 0 THEN NULL /* IF BOTH/ALL VALUES ARE NULL */) 
      WHEN PRTY_KEY_ID_NN <> TOTAL_COUNT THEN PRTY_KEY_ID_NN_MX 
      ELSE 
       CASE WHEN TOTAL_COUNT=PRTY_KEY_ID_NN_DIST THEN NULL /* IF BOTH HAVING DIFFERENT NOT NULL VALUE */ 
       CASE WHEN TOTAL_COUNT<>PRTY_KEY_ID_NN_DIST THEN PRTY_KEY_ID_NN_MX 
       END 
     END)PRTY_KEY_ID_VAL, 
     (CASE WHEN TOTAL_ASSET_A_NN= 0 THEN NULL /* IF BOTH/ALL VALUES ARE NULL */) 
      WHEN TOTAL_ASSET_A_NN <> TOTAL_COUNT THEN TOTAL_ASSET_A_MX 
      ELSE 
       CASE WHEN TOTAL_COUNT=TOTAL_ASSET_A_DIST THEN NULL /* IF BOTH HAVING DIFFERENT NOT NULL VALUE */ 
       CASE WHEN TOTAL_COUNT<>TOTAL_ASSET_A_DIST THEN TOTAL_ASSET_A_MX 
       END 
     END)TOTAL_ASSET_VAL, 
     (CASE WHEN DBUS_NUM_NN= 0 THEN NULL /* IF BOTH/ALL VALUES ARE NULL */) 
      WHEN DBUS_NUM_NN <> TOTAL_COUNT THEN DBUS_NUM_MX 
      ELSE 
       CASE WHEN TOTAL_COUNT=DBUS_NUM_DIST THEN NULL /* IF BOTH HAVING DIFFERENT NOT NULL VALUE */ 
       CASE WHEN TOTAL_COUNT<>DBUS_NUM_DIST THEN DBUS_NUM_MX 
       END 
     END)DBUS_NUM_DIST_VAL, 
     (CASE WHEN BUS_NATURE_DE_NN= 0 THEN NULL /* IF BOTH/ALL VALUES ARE NULL */) 
      WHEN BUS_NATURE_DE_NN <> TOTAL_COUNT THEN BUS_NATURE_DE_MX 
      ELSE 
       CASE WHEN TOTAL_COUNT=BUS_NATURE_DE_DIST THEN NULL /* IF BOTH HAVING DIFFERENT NOT NULL VALUE */ 
       CASE WHEN TOTAL_COUNT<>BUS_NATURE_DE_DIST THEN BUS_NATURE_DE_MX 
       END 
     END)BUS_NATURE_DE_VAL 
FROM 
(SELECT COUNT(*)TOTAL_COUNT, 
     SUM(CASE WHEN PRTY_KEY_ID IS NULL THEN 0 ELSE 1 END)PRTY_KEY_ID_NN, 
     SUM(CASE WHEN TOTAL_ASSET_A IS NULL THEN 0 ELSE 1 END)TOTAL_ASSET_A_NN, 
     SUM(CASE WHEN TOTAL_LIAB_A IS NULL THEN 0 ELSE 1 END)TOTAL_LIAB_A_NN, 
     SUM(CASE WHEN DBUS_NUM IS NULL THEN 0 ELSE 1 END)DBUS_NUM_NN, 
     SUM(CASE WHEN BUS_NATURE_DE IS NULL THEN 0 ELSE 1 END)BUS_NATURE_DE_NN, 
     MAX(PRTY_KEY_ID_NN)PRTY_KEY_ID_NN_MX, 
     MAX(TOTAL_ASSET_A)TOTAL_ASSET_A_MX, 
     MAX(TOTAL_LIAB_A)TOTAL_LIAB_A_MX, 
     MAX(DBUS_NUM)DBUS_NUM_MX, 
     MAX(BUS_NATURE_DE)BUS_NATURE_DE_MX, 
     COUNT(DISTINCT PRTY_KEY_ID_NN) PRTY_KEY_ID_NN_DIST, 
     COUNT(DISTINCT TOTAL_ASSET_A)TOTAL_ASSET_A_DIST, 
     COUNT(DISTINCT TOTAL_LIAB_A)TOTAL_LIAB_A_DIST, 
     COUNT(DISTINCT DBUS_NUM)DBUS_NUM_DIST, 
     COUNT(DISTINCT BUS_NATURE_DE)BUS_NATURE_DE_DIST 
FROM YOUR_TABLE)