Question

EDIT

以下代码提供了PRDTQUESTION表中的特定记录。基于这些分离的记录，我试图使用列FROM_PRODUCTFRAMESEQNO中的值（将值从FROM_PRODUCTFRAMESEQNO复制到TO_PRODUCTFRAMESEQNO）来更新TO_PRODUCTFRAMESEQNO列中的值。

我对SQL还是很陌生，我不确定我的方法是否正确。你们可以看看吗？谢谢你的帮助。

select  p.PRDTQUESTIONSEQNO AS FROM_PRDTQUESTION,
        p.PRODUCTFRAMESEQNO AS FROM_PRODUCTFRAMESEQNO,
        v.PRDTQUESTIONSEQNO AS TO_PRDTQUESTION,
        V.PRODUCTFRAMESEQNO AS TO_PRODUCTFRAMESEQNO 
    FROM prdtquestion p
    JOIN PRDTQUESTION v
    ON p.parttypeseqno = v.parttypeseqno
    where p.questionseqno in (4958) and p.parttypeseqno 
          in (select parttypeseqno from parttypeversummary where mqparttypeverseqno = 99464)
    AND v.PRDTQUESTIONseqno in 
            (select PRDTQUESTIONseqno from prdtquestion where questionseqno in (31138) 
            and parttypeseqno in (select parttypeseqno from parttypeversummary where mqparttypeverseqno = 99464));

上面脚本的输出-SEGREGATED TABLE -几乎所有行中的FROM_PRODUCTFRAMESEQNO和TO_PRODUCTFRAMESEQNO列中的值都不同

FROM_PRDTQUESTION  FROM_PRODUCTFRAMESEQNO  TO_PRDTQUESTION  TO_PRODUCTFRAMESEQNO 
            999228              14193               999051               14189
            999229              14169               998957               14169
            999230              14177               998983               14173
            999231              14121               999068               14117
            999232              14145               998941               14141
            999233              14137               998924               14133
            999234              14185               998907               14181
            999235              18862               999161               18859
            999236              18870               999178               18867
            999237              18878               999195               18875
            999238              17943               999110               17940

预期结果： -如您所见，FROM_PRODUCTFRAMESEQNO和TO_PRODUCTFRAMESEQNO列中的值相同

FROM_PRDTQUESTION  FROM_PRODUCTFRAMESEQNO  TO_PRDTQUESTION  TO_PRODUCTFRAMESEQNO 
            999228              14193               999051               14193
            999229              14169               998957               14169
            999230              14177               998983               14177
            999231              14121               999068               14121
            999232              14145               998941               14145
            999233              14137               998924               14137
            999234              14185               998907               14185
            999235              18862               999161               18862
            999236              18870               999178               18870
            999237              18878               999195               18878
            999238              17943               999110               17943

我尝试了更新，但没有成功：

update PRDTQUESTION 
set TO_PRODUCTFRAMESEQNO = FROM_PRODUCTFRAMESEQNO, usid = 'ACKLIM01', tmstamp = SYSDATE
where PRDTQUESTION in (
     select  p.PRDTQUESTIONSEQNO AS FROM_PRDTQUESTION,
             p.PRODUCTFRAMESEQNO AS FROM_PRODUCTFRAMESEQNO,
             v.PRDTQUESTIONSEQNO AS TO_PRDTQUESTION,
             V.PRODUCTFRAMESEQNO AS TO_PRODUCTFRAMESEQNO 
         FROM PRDTQUESTION p
         JOIN PRDTQUESTION v
         ON p.parttypeseqno = v.parttypeseqno
         where p.questionseqno in (4958) and p.parttypeseqno 
              in (select parttypeseqno from parttypeversummary where mqparttypeverseqno = 99464)
    AND v.PRDTQUESTIONseqno in 
            (select PRDTQUESTIONSEQNO from PRDTQUESTION where questionseqno in (31138) 
            and parttypeseqno in (select parttypeseqno from parttypeversummary where mqparttypeverseqno = 99464))
);

对于PRDTQUESTION表中的单个更新，对我有用的是

“单个更新脚本”

update prdtquestion
set PRODUCTFRAMESEQNO = (select PRODUCTFRAMESEQNO from prdtquestion where prdtquestionseqno in (999229)), tmstamp = SYSDATE, usid = 'ACKLIM01'
where prdtquestionseqno = 998957;

脚本中的

值：'（999229）中的prdtquestionseqno'和'prdtquestionseqno = 998957'取自'SEGREGATED TABLE'。

我可以重复执行“单次更新脚本”以分别更新“ SEGREGATED TABLE”中的每个单元格-但我正在寻找一些捷径

让我知道一切仍然不清楚。谢谢

Answer 1

据我了解，以下查询可能会对您有所帮助。

select * from (select  p.PRDTQUESTIONSEQNO AS FROM_PRDTQUESTION,
        p.PRODUCTFRAMESEQNO AS FROM_PRODUCTFRAMESEQNO,
        v.PRDTQUESTIONSEQNO AS TO_PRDTQUESTION,
        V.PRODUCTFRAMESEQNO AS TO_PRODUCTFRAMESEQNO 
    FROM prdtquestion p
    JOIN PRDTQUESTION v
    ON p.parttypeseqno = v.parttypeseqno
    where p.questionseqno in (4958) and p.parttypeseqno 
          in (select parttypeseqno from parttypeversummary where mqparttypeverseqno = 99464)
    AND v.PRDTQUESTIONseqno in 
            (select PRDTQUESTIONseqno from prdtquestion where questionseqno in (31138) 
            and parttypeseqno in (select parttypeseqno from parttypeversummary where mqparttypeverseqno = 99464)))A where A.FROM_PRODUCTFRAMESEQNO=A.TO_PRODUCTFRAMESEQNO ;

如果您希望将FROM_PRODUCTFRAMESEQNO的每个值与所有TO_PRODUCTFRAMESEQNO值进行匹配，无论它属于哪一行，那么都可以使用exist / in运算符。

Answer 2

这应该有效并且更简单。为了简单起见，我已经修剪了SQL。

select *
from (
select  p.PRDTQUESTIONSEQNO AS FROM_PRDTQUESTION,
        p.PRODUCTFRAMESEQNO AS FROM_PRODUCTFRAMESEQNO,
        v.PRDTQUESTIONSEQNO AS TO_PRDTQUESTION,
        V.PRODUCTFRAMESEQNO AS TO_PRODUCTFRAMESEQNO 
    FROM prdtquestion p
    JOIN PRDTQUESTION v
    ON p.parttypeseqno = v.parttypeseqno
) where FROM_PRDTQUESTION <> TO_PRDTQUESTION

将值从一列复制到同一表中的另一列

2 个答案: