you could achieve this using decode
cozI am anoviceOracle Certifiable DBBS
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- Original Message -----
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
<A title=abiy.alemu_at_criltechnology.com
href="mailto:abiy.alemu_at_criltechnology.com">ALEMU Abiy
To: <A title=ORACLE-L_at_fatcity.com
href="mailto:ORACLE-L_at_fatcity.com">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 :
<SPAN
class=270522206-02072001>
<SPAN
class=270522206-02072001>Station
Emission_Freq
Reception_Freq
<SPAN
class=270522206-02072001>--------
-----------------
------------------
<SPAN
class=270522206-02072001>STAT1
192.5
193.5
<SPAN
class=270522206-02072001>STAT2
193
<SPAN
class=270522206-02072001>STAT2
194
<SPAN
class=270522206-02072001>STAT2
193.5
194.5
<SPAN
class=270522206-02072001>STAT2
195
<SPAN
class=270522206-02072001>
<SPAN
class=270522206-02072001>
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 ?
<FONT face=Arial color=#ff0000
size=2>------------------------------------------------------------------------------------
@biy @lemu
<A
href="mailto:abiy.alemu_at_criltelecom.com">abiy.alemu_at_criltelecom.com
<SPAN
class=630595213-05042001>Database Administration
Engineer
<IMG height=17
alt="Groupe CRIL TECHNOLOGY" hspace=0
src="
http://www.criltechnology.com/images/cril.gif" width=177
align=top>
France
Received on Mon Jul 02 2001 - 03:38:48 CDT
