Re: Dimension table load - PLSQL question

Thanks for very helpful, no patronizing answer. If you've read more carefully what the problem is
you'd see that MERGE can't work because it works on one table upserting another.
I have one table being inserted from 6 tables. Thanks genius.

 On 9/28/05, Paul Drake <bdbafh_at_gmail.com> wrote:
>
> On 9/28/05, Ranko Mosic <ranko.mosic_at_gmail.com> wrote:
> >
> > Hi,
> > requirement:
> > - input parameters are codes p_cd1, p_cd2, ...
> > - for these codes I get descriptions ( select descr1 into v_descr1 from
> > lkp_table1 where cd = p_cd1; select descr2 into v_descr2 from lkp_table2 where
> > cd = p_cd2 etc )
> > - check if table t has records where t.descr1 = v_descr1
> > and t.descr2 = v_descr2 and on and on ....;
> > - if row exists return primary key;
> > - if not then insert.
> >
> > What is the best way of doing it ( simplest ) ?
> >
> > Regards, Ranko.
> >
> >
> >
> Ranko,
>
> "Simplest way" is to solicit opinions without using a search engine or
> checking the documentation.
> Its also usually "simplest" to leverage the existing provided
> functionality, rather than writing your own routines, error handling, etc.
>
> A search of "oracle 10.1 upsert" in google.com <http://google.com/> + "I'm
> feeling lucky" produced this for me.
> Perhaps you might get lucky too.
>
> Paul
>
> http://www.psoug.org/reference/merge.html
>
>
> MERGE <hint> INTO <table_name>
> USING <table_view_or_query>
> ON (<condition>)
> WHEN MATCHED THEN <update_clause>
> WHEN NOT MATCHED THEN <insert_clause>;
>

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