Question

我正在研究一个sql文件，试图制作一个脚本，该脚本可以显示所显示的表中的所有数据或表中的所有数据以及3个月的数据。我一直收到error 00905 missing keyword的错误，我不明白为什么。

我查看了语法，这一切对我来说都是正确的。我会在它说错误发生的位置（在第一个内连接处）放置一个标记。我更改了所有表名，使其看起来更好，因为它超出了语法。

任何帮助都会非常感谢你。这只是代码的一部分，但我确信它必须在这里。

WHEN Table_typ_cde = '1' -- Pulling all data --
  THEN
    INNER JOIN  Table   acp ON Table_oid = Table_oid
    INNER JOIN  Table   loss ON Table_oid = Table_oid
    LEFT OUTER JOIN Table veh ON Table_oid = Table_oid and Table_nbr=1
    INNER JOIN Table   brnch ON Table_OID = Table_oid
    INNER JOIN Table   a ON Table_OID = Table_oid
    INNER JOIN Table   c Table_OID = Table_oid
    INNER JOIN Table   s ON Table_OID = Table_oid
    INNER JOIN Table   r ON Table_OID = Table_oid
    INNER JOIN Table   grp ON Table_oid = Table_oid
    INNER JOIN Table on Table_id = Table_id
    WHERE Table_ID <> 2
 WHEN Table_cde = '2' -- Pulling all data within the last 3 months along with all present data --
 THEN
    INNER JOIN  Table   acp ON Table_oid = Table_oid
    INNER JOIN  Table   loss ON Table_oid = Table_oid
    LEFT OUTER JOIN Table veh ON Table_oid = Table_oid and Table_nbr=1
    INNER JOIN Table   brnch ON Table_OID = Table_oid
    INNER JOIN Table   a ON Table_OID = Table_oid
    INNER JOIN Table   c ON Table_OID = Table_oid
    INNER JOIN Table   s ON Table_OID = Table_oid
    INNER JOIN Table   r ON Table_OID = Table_oid
    INNER JOIN Table   grp ON Table_oid = Table_oid
    INNER JOIN Table on Table_id = Table_id
    WHERE Table_ID <> 2
    AND df.DATE_CREATED BETWEEN ADD_MONTHS(SYSDATE, -6)
    AND sysdate
END                                         
) core

Answer 1

您无法使用JOIN打破CASE。我在你的查询的某些部分看到过这个，

THEN
   INNER JOIN  Table   acp ON Table_oid = Table_oid
   INNER JOIN  Table   loss ON Table_oid = Table_oid

这是错误的，您必须在INNER JOIN关键字之前提供表名。

Answer 2

您有两组看似相同的联接。然后，您有一个日期过滤器，您希望有条件地应用它。您需要在WHERE子句中应用它而不是FROM。有些人喜欢这个

FROM  ... INNER JOIN  Table   acp ON Table_oid = Table_oid
    INNER JOIN  Table   loss ON Table_oid = Table_oid
    LEFT OUTER JOIN Table veh ON Table_oid = Table_oid and Table_nbr=1
    INNER JOIN Table   brnch ON Table_OID = Table_oid
    INNER JOIN Table   a ON Table_OID = Table_oid
    INNER JOIN Table   c ON Table_OID = Table_oid
    INNER JOIN Table   s ON Table_OID = Table_oid
    INNER JOIN Table   r ON Table_OID = Table_oid
    INNER JOIN Table   grp ON Table_oid = Table_oid
    INNER JOIN Table on Table_id = Table_id
WHERE Table_ID <> 2
    AND (Table_cde = '1' 
          or ( Table_cde = '2' 
          and df.DATE_CREATED BETWEEN ADD_MONTHS(SYSDATE, -6) AND sysdate ))

SQL / ORACLE缺少关键字

2 个答案: