Question

我在执行此查询时收到错误'ORA-00905: missing keyword'，错误是在case语句中。请找到解决方案请找到下面的查询

SELECT Count(*) 
FROM   c_bpartner 



WHERE  c_bpartner.issummary = 'N' 
       AND c_bpartner.isactive = 'Y' 
       AND c_bpartner.isactive = 'Y' 
       AND c_bpartner.issummary = 'N' 
       AND ( CASE 
               WHEN 135 NOT IN (SELECT c_doctype_id 
                                FROM   c_doctype 
                                WHERE  docsubtypeso IN( 'OB', 'ON' )) THEN 
               c_bpartner.isprospect = 'N' 
               ELSE c_bpartner.isprospect = 'Y' 
                     OR c_bpartner.isprospect = 'N' 
             END ) 
       AND c_bpartner.iscustomer = 'Y' 
       AND c_bpartner.isprospect = 'N'

Answer 1

我认为问题在于CASE条款中的WHERE声明。您正在尝试应用可选过滤器，但CASE不允许您对查询应用动态更改。相反，使用CASE来投射可以在谓词中使用的行特定值，例如：假设＆＃39; Y＆＃39;和＆＃39; N＆＃39;是isprospect的唯一可能性，尝试重写这样的情况：

AND c_bpartner.isprospect =
( CASE 
    WHEN 135 NOT IN (SELECT c_doctype_id 
                    FROM   c_doctype 
                    WHERE  docsubtypeso IN( 'OB', 'ON' )) 
    THEN 
        'N' 
    ELSE 
        c_bpartner.isprospect
    END 
)

在c_bpartner.isprospect中返回ELSE应保证匹配。

'ORA-00905：缺少关键字'

1 个答案: