Update Query

From: CC Harvest <ccharvest_at_yahoo.com>
Date: Wed, 30 May 2001 12:16:28 -0700
Message-ID: <F001.00314314.20010530115614@fatcity.com>

Seems like Oracle Doesn't have to the query like this:

update tablea set firstname=tableb.firstname, lastname=tableb.lastname
where tableb.id = tablea.id;

I can have one, it works if it has a match for the two tables, otherwise the two columns updated to null:

update tablea set (firstname,lastname)
=(select firstname,lastname from tableb

  where tableb.id=tablea.id);

Then the following one works, but very ugly:

update tablea set (firstname,lastname)
=(select firstname,lastname from tableb

  where tableb.id=tablea.id)
where exists(
select 'x' from tableb
  where tableb.id=tablea.id)

Any suggestions?
TIA Chris Harvest

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Author: CC Harvest
  INET: ccharvest_at_yahoo.com

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Received on Wed May 30 2001 - 14:16:28 CDT