From novicedba@hotmail.com Mon, 02 Jul 2001 01:38:48 -0700 From: "novicedba" Date: Mon, 02 Jul 2001 01:38:48 -0700 Subject: Re: Simple SQL Query Question Message-ID: MIME-Version: 1.0 Content-Type: text/plain you could achieve this using decode     cozI am anoviceOracle Certifiable DBBS
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From: ALEMU Abiy To: Multiple recipients of list ORACLE-L Sent: Monday, July 02, 2001 1:00 PM Subject: Simple SQL Query Question I've a table with the following structure and sample data :   Station        Emission_Freq        Reception_Freq --------        -----------------        ------------------ STAT1        192.5                        193.5 STAT2        193    STAT2        194 STAT2        193.5                        194.5 STAT2        195     And I would like to select the number of frequencies, sort of count(*), for a given station and multiply that value by 2 if the station has Emission frequency and reception frequency and multiply by one if the station has only the emission frequency or only the reception frequency.  I don't know how to use a condition in SQL.  I'm sure that it's possible to do it but I don't know how.  Can anybody help me ? ------------------------------------------------------------------------------------ @biy @lemu abiy.alemu@criltelecom.com Database Administration Engineer Groupe CRIL TECHNOLOGY France