Re: Try Again: Outer Join with SUBSTR

In what way is it not working ?
Are you getting an error message, or not getting the results you expect.

In the latter case, this may be because
you are cancelling the outer join by not echoing it through all the necessary
points in the WHERE clause.

e.g.
>
> (substr(pcmacaddress,10,2) ||
> substr(smarts.pcmacaddress,13,2) ||
> substr(smarts.pcmacaddress,16,2) ||
> substr(smarts.pcmacaddress,19,2) ||
> substr(smarts.pcmacaddress,22,2) ||
> substr(smarts.pcmacaddress,25,2))(+)=lisa.macaddress
>

    makes smarts the deficient table, but

> smarts.giltbis = '2100-01-01-00.00.00.000000' and

    eliminates the outer-ness of the join, and loses     any appended rows.

similarly with:

> kompsys.system = syspers.system(+) and
> syspers.giltbis = '2100-01-01-00.00.00.000000' and

the join to syspers ceases to be outer because of the literal comparison.

Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

Now available One-day tutorials:
  Cost Based Optimisation
  Trouble-shooting and Tuning
  Indexing Strategies

(see http://www.jlcomp.demon.co.uk/tutorial.html )

____UK_______April 8th
____UK_______April 22nd

____Denmark May 21-23rd

____USA_(FL)_May 2nd

Next dates for the 3-day seminar:
(see http://www.jlcomp.demon.co.uk/seminar.html )

____UK_(Manchester)_May
____USA_(CA, TX)_August

The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

• Original Message ----- From: "WLSH" <wlsh1961_at_yahoo.com> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: 20 March 2003 14:44 Subject: Try Again: Outer Join with SUBSTR

>
> Hello, List:
> I'm doing a outer join with SUBSTR, but can't get it to work. Is
there a way to get correct or get around it? Thanks in advance
>
> SELECT rtrim(komp.inventar),
> rtrim(komp.typ),

...
> rtrim(smarts.giltbis)
> FROM kompneti, komp, sysstand, person, c_lisa_data lisa, kompsys,
syspers, c_smarts_data smarts
> WHERE kompneti.mac_adr = lisa.macaddress and
> kompneti.giltbis = '2100-01-01-00.00.00.000000' and
> kompneti.ident = komp.ident and
> komp.ident = kompsys.ident and
> kompsys.giltbis = '2100-01-01-00.00.00.000000' and
> kompsys.system = sysstand.system and
> sysstand.giltbis = '2100-01-01-00.00.00.000000' and
> kompsys.system = syspers.system(+) and
> syspers.giltbis = '2100-01-01-00.00.00.000000' and
> syspers.pers_nr = person.pers_nr(+) and
> smarts.giltbis = '2100-01-01-00.00.00.000000' and
> lisa.macaddress = substr(pcmacaddress,10,2) ||
> substr(smarts.pcmacaddress,13,2) ||
> substr(smarts.pcmacaddress,16,2) ||
> substr(smarts.pcmacaddress,19,2) ||
Received on Thu Mar 20 2003 - 12:36:14 CST