【发布时间】：2016-11-25 14:13:12
【问题描述】：
WITH SubQry AS
(SELECT DISTINCT
TBL1."IDNUM"
FROM
"LIBRARY"."SALES" TBL4 INNER JOIN "LIBRARY"."CUSTOMER" TBL1 ON TBL4."CUSTOMERKEY" = TBL1."CUSTOMERKEY"
INNER JOIN "LIBRARY"."TIME" TBL3 ON TBL4."DATEKEY" = TBL3."DATEKEY"
INNER JOIN "LIBRARY"."PRODUCT" TBL2 ON TBL4."PRODUCTKEY" = TBL2."PRODUCTKEY"
WHERE
TBL1."COUNTRY" IN ('Austria', 'Denmark', 'Belgium')
AND TBL3."FISCALYEAR" BETWEEN '2011' AND '2016')
SELECT
T1."REGION"
, T1."COUNTRY"
, SubQry."IDNUM" AS "BOOKING_IDNUM"
, (CASE WHEN SubQry."IDNUM" IS NULL Then 'New' ELSE 'Existing' END) "BOOKING_FLAG"
, T1."IDNUM"
, T1."CUSTOMER"
, T1. "BUSSINESS"
, T1."PROJECTNUM"
, T1."PROJECTNAME"
, T1."PROJECTOWNER"
, T1."PROJECT_STATUS"
, SUM(T1."PROJECT_VALUE")
, COUNT(*) "TRANSACTION_COUNT"
, TO_CHAR(trunc(T1."CREATEDATE" / 100)) AS "YEARMONTH_CALENDAR"
, (CASE
WHEN T1."BUSS_ID" IN ('ABC', 'DEF')
THEN 'MID' ELSE NULL END) "DRIVE_TYPE"
, (CASE
WHEN T1."IDNUM" IN ('901023','1401516','2401056','2101444')
THEN 'VIP' ELSE 'Standard' END) AS "ACC_TYPE"
, T1."BUSS_ID"
FROM
"LIBRARY"."PROJECT_DETAILS" T1 LEFT JOIN SubQry ON T1."IDNUM" = SubQry."IDNUM"
WHERE
T1."COUNTRY" IN ('Austria', 'Denmark', 'Belgium')
AND T1."BUSS_ID" IN ('ABC', 'DEF')
AND T1."CREATEDATE" >= '20160101'
GROUP BY
T1."REGION"
, T1."COUNTRY"
, SubQry."IDNUM"
, T1."IDNUM"
, T1."CUSTOMER"
, T1. "BUSSINESS"
, T1."PROJECTNUM"
, T1."PROJECTNAME"
, T1."PROJECTOWNER"
, T1."PROJECT_STATUS"
, T1."BUSS_ID"
, T1."CREATEDATE"
HAVING
SUM(T1."PROJECT_VALUE") > 0
UNION
SELECT
T1."REGION"
, T1."COUNTRY"
, SubQry."IDNUM" AS "BOOKING_IDNUM"
, (CASE WHEN SubQry."IDNUM" IS NULL Then 'New' ELSE 'Existing' END) "BOOKING_FLAG"
, T1."IDNUM"
, T1."CUSTOMER"
, T1."BUSSINESS"
, T1."PROJECTNUM"
, T1."PROJECTNAME"
, T1."PROJECTOWNER"
, T1."PROJECT_STATUS"
, SUM(T1."PROJECT_VALUE")
, COUNT(*) "TRANSACTION_COUNT"
, TO_CHAR(trunc(T1."CREATEDATE" / 100)) AS "CREATEDATE_YEARMONTH_CALENDAR"
, (CASE
WHEN T1."BUSS_ID" IN ('ABC', 'JKL', 'PQR')
THEN 'PRO'ELSE NULL END) "DRIVE_TYPE"
, (CASE
WHEN T1."IDNUM" IN ('901023','1401516','2401056','2101444')
THEN 'VIP' ELSE 'Standard' END) AS "ACC_TYPE"
, T1."BUSS_ID"
FROM
"LIBRARY"."PROJECT_DETAILS" T1 LEFT JOIN SubQry ON T1."IDNUM" = SubQry."IDNUM"
WHERE
T1."COUNTRY" IN ('Austria', 'Denmark', 'Belgium')
AND T1."BUSS_ID" IN ('ABC', 'JKL', 'PQR')
AND T1."CREATEDATE" >= '20160101'
GROUP BY
T1."REGION"
, T1."COUNTRY"
, SubQry."IDNUM"
, T1."IDNUM"
, T1."CUSTOMER"
, T1."BUSSINESS"
, T1."PROJECTNUM"
, T1."PROJECTNAME"
, T1."PROJECTOWNER"
, T1."PROJECT_STATUS"
, T1."BUSS_ID"
, T1."CREATEDATE"
HAVING
SUM(T1."PROJECT_VALUE") > 0
你好，
上述查询包括：
-
WITH CLAUSE - 本条款的目的是区分
"IDNUM"与在 2011 年至 2016 年期间购买商品的客户。 -
第一次查询 - 查询的主要目的是检查上述 WITH 子句中是否存在任何选定的
"IDNUM"。此外，此查询应该检查选定的"IDNUM"是否与特定的"BUSS_ID"匹配，并在名为"DRIVE_TYPE"的列中将它们标记为'MID'。 -
第二个查询 - 此查询与第一个查询的作用几乎相同。唯一的区别是它在名为
"DRIVE_TYPE"的列中将"IDNUM"标记为'PRO'。
您可能已经注意到，在这两个查询中，都有一个共同的"BUSS_ID": 'ABC'
-
第一次查询 -
, (CASE WHEN T1."BUSS_ID" IN ('ABC', 'DEF') THEN 'MID' ELSE NULL END) "DRIVE_TYPE" -
第二次查询 -
, (CASE WHEN T1."BUSS_ID" IN ('ABC', 'JKL', 'PQR') THEN 'PRO'ELSE NULL END) "DRIVE_TYPE"
我尝试将这些查询联合起来，以将属于“BUSS_ID”的每一行显示为两个单独的结果行。换句话说，如果单行包含"BUSS_ID" of 'ABC'，那么 select 语句将显示两次。一行"DRIVE_TYPE" 标记为'MID'，另一行标记为'PRO'。
问题是，当我运行查询时出现以下错误：
ORA-00604：递归 SQL 级别 1 发生错误
ORA-00904:"from$_subquery$_003"."DATEKEY_0_0": 标识符无效
让我更困惑的是，我可以运行 WHERE CLAUSE + 1st Query 或 WITH CLAUSE + 2nd Query 的组合 没有任何问题。 但是当我尝试运行 WITH CLAUSE + 1st Query + UNION + 2nd Query 时出现错误。
【问题讨论】：
-
该查询在 12.1.0.2 上适用于我。你能在其他数据库上重现错误吗？也许您的版本或平台存在错误？它可能有助于创建一个较小的、独立的、可重现的测试用例。
-
@Jon Heller 不幸的是，我只能从数据库中提取数据而不能修改它。但是，您所说的是有效的观点。如果其他事情失败了，我会考虑创建一个测试数据库，但只是作为最后的手段，因为这会花费我太多时间。感谢您抽出时间为我调查这个问题。