BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  sql translation pls.          BorlandTalk.com Forum Index -> Delphi Databases (SQL Servers) View previous topic :: View next topic   Author Message tony Guest Posted: Sat Aug 14, 2004 1:18 pm    Post subject: sql translation pls. I have a SQL in MS Access read as : select fielda, iif(fieldb=0, fieldc,fieldb) from tableA How could I do the same in Oracle? I tried NVL but no luck. Thanks in advance. Back to top Wayne Niddery [TeamB] Guest Posted: Sat Aug 14, 2004 1:43 pm    Post subject: Re: sql translation pls. tony wrote: Quote: I have a SQL in MS Access read as : select fielda, iif(fieldb=0, fieldc,fieldb) from tableA A standard SQL alternative is to use Union, which Oracle should handle: select fielda, fieldc from tableA where fieldb=0 union all select fielda, fieldb from tableA where fieldb<>0 -- Wayne Niddery - Logic Fundamentals, Inc. (www.logicfundamentals.com) RADBooks: http://www.logicfundamentals.com/RADBooks.html SpaceShipOne; GovernmentZero Back to top Eric Hill Guest Posted: Sun Aug 15, 2004 12:18 am    Post subject: Re: sql translation pls. If you want to use the "Oracle" way, then... select fielda, decode(fieldb,0,fieldc,fieldb) from tableA Back to top tony Guest Posted: Sun Aug 15, 2004 3:43 am    Post subject: how about iif(fielda>0, fielda, fieldb)? Sorry I am asking for more! how about iif(fielda>0, fielda, fieldb)? Thanks Quote: If you want to use the "Oracle" way, then... select fielda, decode(fieldb,0,fieldc,fieldb) from tableA Back to top Eric Hill Guest Posted: Sun Aug 15, 2004 5:47 am    Post subject: Re: how about iif(fielda>0, fielda, fieldb)? Quote: Sorry I am asking for more! how about iif(fielda>0, fielda, fieldb)? Thanks decode(sign(fielda),1,fielda,fieldb) Eric Back to top Dmitry Arefiev [gs-soft.r Guest Posted: Mon Aug 16, 2004 2:23 pm    Post subject: Re: how about iif(fielda>0, fielda, fieldb)? And so on ? <g> If Oracle version is >= 9, then you can use CASE statement. Quote: select fielda, iif(fieldb=0, fieldc,fieldb) from tableA will be select fielda, case when fieldb = 0 then fieldc else fieldb end from tableA Regards, Dmitry -- Dmitry L. 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