Re: Can you specify multiple tables in update's where clause?

Try this

update table_a
set table_a.my_col = 'Like This'
[Quoted] where table_a.col_a in

        (select table_x.col_b
         from    table_x
         ,           table_y
         where table_x.col_x= table_y.col_d
        )

[Quoted] And buy an SQL-book.

[Quoted] change <changeme_at_changeme> schreef in berichtnieuws 9ei2f5$dh01_at_kcweb01.netnews.att.com...
> Need some sql expert input on UPDATE command. How do I involve multiple
> tables in WHERE clause?
>
> Consider this simplified example on update command:
>
> UPDATE TABLE_A
> SET TABLE_A.my_col = "thisThat"
> WHERE
> TABLE_A.col_a = TABLE_X.col_b
> and TABLE_X.col_c = TABLE_Y.col_d
>
>
> This fails with a message that table2 is not in scope! How do I involve
> multiple tables in the where clause of an update? Can't seem to find an
> example in any book/webpage.
>
> Comments?
>
> essbee
>
> (I am using Oracle 8.1.5, though this seems to be a generic SQL question)
>
>
Received on Sat Jul 21 2001 - 23:07:38 CEST