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Re: avoid duplicate sql

From: OZKAN OZCAN <oozcan_at_tekstilbank.com.tr>
Date: Wed, 08 Aug 2001 07:35:47 -0700
Message-ID: <F001.00364365.20010808072759@fatcity.com>

Try this, it selects the one who connect in half an hour ... but you can use a dynamic sql instead if this works via cron and write the where clause by taking
from system date and time..

select sysdate, sysdate - 1./48. , s.logon_time from v$session s where logon_time > sysdate - 1./48.

     SYSDATE SYSDATE-1./48. LOGON_TIME 1 08/08/2001 17:20:28 08/08/2001 16:50:28 08/08/2001 17:18:01 2 08/08/2001 17:20:28 08/08/2001 16:50:28 08/08/2001 17:19:52

Ozkan Ozcan.                                                                                                                                                                                      

                                        Gönderilen:               Multiple             
  
                                  recipients of list ORACLE-L                          
  
                                  <ORACLE-L_at_fatcity.com>                               
  
  "Tatireddy, Shrinivas (MED,           Bilgisine:                                     
  
 Keane)"                                Konu:                                          
  
 <Shrinivas.Tatireddy_at_med.ge.com> avoid duplicate sql                                  
  
                                                                                       
  
  Gönderen: root_at_fatcity.com                                                           
  
  08/08/2001 16:41                                                                     
  
                                                                                       
  
  Lütfen ORACLE-L adresine                                                             
  
 yanıtlayınız.                                                                         
  
                                                                                       
  
                                                                                       
  



     Hi lists

i need help in writing a sql query:

i am trying to capture the session information from v$session and inserting the same into someother table xyz with columns username, logon_time. (scott logged in at 10:30 hrs)

i put this script in cron. it runs every 30 minutes. but i need the values shoudld not be duplicated.

Every time the shell script runs, it inserts values into XYZ. table. Here i need your help. The values should not be duplicated that are being insreted into xyz.

since username,logon_time are composite primary key, system will not accept duplicates.

Because, in the v$session, if the user stays more than 30 minutes, his values will be sent to xyz table and as already xyz has that row (inserted before 30 minutes by shell), system will deny to insert the duplicate the value into xyz.

any scripts? scripts?

thanx in advance
srinivas
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Author: Tatireddy, Shrinivas (MED, Keane)   INET: Shrinivas.Tatireddy_at_med.ge.com

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Author: OZKAN OZCAN
  INET: oozcan_at_tekstilbank.com.tr

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