根据特定条件使用另一个表的行更新一个表的行

Question

我想根据以下条件使用EMPLOYEE_MST 表中的OFFICE_ID,OFFICE_TYPE 更新FA_SUBLEDGER_MST 表的OFFICE_ID,OFFICE_TYPE：

EMPLOYEE_MST.SL_CODE=FA_SUBLEDGER_MST.SL_CODE EMPLOYEE_MST.OFFICE_ID<>SL.OFFICE_ID OR EMPLOYEE_MST.OFFICE_TYPE<>SL.OFFICE_TYPE AND EMPLOYEE_MST.OFFICE_TYPE!='DHB'.

我试过这个查询：

UPDATE FA_SUBLEDGER_MST sl
SET
  (
    sl.OFFICE_ID,sl.OFFICE_TYPE
  )
  =
  (SELECT emp.OFFICE_ID,
  emp.OFFICE_TYPE
  FROM EMPLOYEE_MST emp
  WHERE emp.OFFICE_ID<>sl.OFFICE_ID
  OR emp.OFFICE_TYPE<>sl.OFFICE_TYPE
  AND sl.SL_CODE      = emp.SL_CODE
  AND emp.OFFICE_TYPE!='DHB'
  )
WHERE sl.STATUS = 'A'
AND EXISTS
  (SELECT 1
  FROM EMPLOYEE_MST emp
  WHERE emp.OFFICE_ID<>sl.OFFICE_ID
  OR emp.OFFICE_TYPE<>sl.OFFICE_TYPE
  AND emp.SL_CODE=sl.SL_CODE  
  AND emp.OFFICE_TYPE!='DHB'
  );

还有这个：

UPDATE FA_SUBLEDGER_MST
SET
  (
    OFFICE_ID,
    OFFICE_TYPE
  )
  =
  (SELECT OFFICE_ID,
    OFFICE_TYPE
  FROM EMPLOYEE_MST
  WHERE FA_SUBLEDGER_MST.OFFICE_ID != EMPLOYEE_MST.OFFICE_ID
  OR FA_SUBLEDGER_MST.OFFICE_TYPE!  =EMPLOYEE_MST.OFFICE_TYPE
  AND FA_SUBLEDGER_MST.SL_CODE      = EMPLOYEE_MST.SL_CODE
  AND EMPLOYEE_MST.OFFICE_TYPE!     ='DHB'
  ) ;

但是两者都导致了这个错误：

SQL 错误：ORA-01427：单行子查询返回多行
01427. 00000 - “单行子查询返回多于一行

我也试过了：

UPDATE
  (SELECT em.OFFICE_ID emoffid,
    SL.OFFICE_ID sloffid,
    em.OFFICE_TYPE emofftype,
    SL.OFFICE_TYPE slemofftype,
    SL.STATUS
  FROM EMPLOYEE_MST em
  JOIN FA_SUBLEDGER_MST SL
  ON em.SL_CODE      =SL.SL_CODE
  WHERE em.OFFICE_ID<>SL.OFFICE_ID
  OR em.OFFICE_TYPE <>SL.OFFICE_TYPE
  AND em.OFFICE_TYPE!='DHB'
  AND SL.STATUS      ='A'
  ) t
SET t.sloffid   =t.emoffid
WHERE t.emoffid<>t.sloffid
OR t.emofftype <>t.slemofftype
AND t.emofftype!='DHB'
AND t.STATUS    ='A';

这导致了一个错误：

SQL 错误：ORA-01779：无法修改映射到非键保留表的列
01779. 00000 - “无法修改映射到非键保留表的列”
*原因：试图插入或更新映射到非键保留表的连接视图的列。
*Action：直接修改底层基表。

两个表都包含超过 100,000 条记录，OFFICE_ID 可以是1,2,3,4,5，OFFICE_TYPE 可以是'DE','DI','HO'，因此它们经常重复。

我需要一个 Oracle 查询来执行此操作。无法使用过程。

非常感谢您的帮助。

Answer 1

试试这个：

 WHERE (FA_SUBLEDGER_MST.OFFICE_ID != EMPLOYEE_MST.OFFICE_ID AND
        FA_SUBLEDGER_MST.OFFICE_TYPE !=EMPLOYEE_MST.OFFICE_TYPE) --AND will be converted to OR by SQL Engine
  AND FA_SUBLEDGER_MST.SL_CODE      = EMPLOYEE_MST.SL_CODE
  AND EMPLOYEE_MST.OFFICE_TYPE!     ='DHB'
  AND sl.STATUS = 'A' 

Answer 2

试试

UPDATE FA_SUBLEDGER_MST
SET sl.OFFICE_ID = em.OFFICE_ID
,sl.OFFICE_TYPE = em.OFFICE_TYPE
FROM FA_SUBLEDGER_MST sl
INNER JOIN EMPLOYEE_MST em ON em.SL_CODE      =SL.SL_CODE
  WHERE em.OFFICE_ID<>SL.OFFICE_ID
  OR em.OFFICE_TYPE <>SL.OFFICE_TYPE
  AND em.OFFICE_TYPE!='DHB'
  AND SL.STATUS      ='A'

Answer 3

试试这个代码：

UPDATE FA_SUBLEDGER_MST
SET
  (
    OFFICE_ID,
    OFFICE_TYPE
  )
  =
  (SELECT OFFICE_ID,
    OFFICE_TYPE
  FROM EMPLOYEE_MST
 WHERE ....... 
  ) 
  WHERE (FA_SUBLEDGER_MST.OFFICE_ID != EMPLOYEE_MST.OFFICE_ID AND
        FA_SUBLEDGER_MST.OFFICE_TYPE !=EMPLOYEE_MST.OFFICE_TYPE) 
  AND FA_SUBLEDGER_MST.SL_CODE      = EMPLOYEE_MST.SL_CODE
  AND EMPLOYEE_MST.OFFICE_TYPE!     ='DHB'
  AND sl.STATUS = 'A' ;

Answer 4

终于找到了解决办法：

 merge into FA_SUBLEDGER_MST s1
    using (
        select SL_CODE, OFFICE_ID, OFFICE_TYPE
        from EMPLOYEE_MST
        where OFFICE_TYPE != 'DHB'
    ) emp
    on (s1.SL_CODE = emp.SL_CODE)
    when matched then update set 
        s1.OFFICE_ID = emp.OFFICE_ID,
        s1.OFFICE_TYPE = emp.OFFICE_TYPE
    where sl.STATUS = 'A'
        and (s1.OFFICE_ID <> emp.OFFICE_ID
        or  s1.OFFICE_TYPE <> emp.OFFICE_TYPE)

;

原帖：Updating row of one table using rows of another table based on specific conditions on https://dba.stackexchange.com/