出现错误“ORA-00933：SQL 命令未正确结束”[重复]

Question

我能够在 select 语句上获得结果，但在使用 update 时我遇到了问题。 数据库服务器：- Oracle 11g。

update  t1
set t1.componentID = cteData.componentID
from tpinventryrecds t1
inner join ( select * from
(select TPLVLKEY , standardName , DOCTYPE , 'Default' as componentID ,count(*) as val from tpinventryrecds
where  componentID is  null
group by TPLVLKEY , standardName , DOCTYPE)`enter code here`
where val = 1) cteData
on t1.TPLVLKEY =  cteData.TPLVLKEY
and t1.standardName = cteData.standardName
and t1.DOCTYPE = cteData.DOCTYPE;

Answer 1

你不能SET ... FROM - 它可能必须是一个子查询，例如这个例子；我并不是说它是正确的，但是 - 至少 - 它应该可以编译。

UPDATE t1
   SET t1.componentID =
          (SELECT cteData.componentID
             FROM tpinventryrecds t1
                  INNER JOIN
                  (SELECT *
                     FROM (  SELECT TPLVLKEY,
                                    standardName,
                                    DOCTYPE,
                                    'Default' AS componentID,
                                    COUNT (*) AS val
                               FROM tpinventryrecds
                              WHERE componentID IS NULL
                           GROUP BY TPLVLKEY, standardName, DOCTYPE)
                    WHERE val = 1) cteData
                     ON     t1.TPLVLKEY = cteData.TPLVLKEY
                        AND t1.standardName = cteData.standardName
                        AND t1.DOCTYPE = cteData.DOCTYPE);

Answer 2

使用合并

MERGE INTO tpinventryrecds t
USING 
(
  select TPLVLKEY , standardName , DOCTYPE , 'Default' as componentID ,count(*) as val from tpinventryrecds
where  componentID is  null
group by TPLVLKEY , standardName , DOCTYPE
) cteData ON ( t1.TPLVLKEY =  cteData.TPLVLKEY
and t1.standardName = cteData.standardName
and t1.DOCTYPE = cteData.DOCTYPE)
WHEN MATCHED THEN UPDATE 
    SET t1.componentID = cteData.componentID