> -----Original Message-----
> From: Rod Clayton [mailto:[EMAIL PROTECTED]]
>
> I have a field in a table called C called ID that I want to
> use to update a field in table A called ID.
>
> Table A has a key to table B which has a key to table C.
>
> I can not find a working example of doing this.
>
> Does anyone have a suggtion. I have been using the examples
> in the Oracle manuals, but I can't seem to get one to work.
Here's an example:
LQS> select * from a ;
K ID
---------- ----------
1
2
LQS> select * from b ;
K K2
---------- ----------
1 11
3 33
LQS> select * from c ;
K2 ID
---------- ----------
11 111
22 222
33 333
44 4444
LQS> update a set a.id = (select c.id from b, c where b.k = a.k and c.k2 = b.k2)
2 where exists (select * from b, c where b.k = a.k and c.k2 = b.k2) ;
1 ligne mise à jour.
LQS> select * from a ;
K ID
---------- ----------
1 111
2
