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   comp.databases.oracle      Overblown overpriced overengineered SHIT      2,288 messages   

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   Message 1,369 of 2,288   
   Frank van Bortel to All   
   Re: Materlized view Refresh Interval   
   30 Apr 04 13:58:22   
   
   From: fvanbortel@netscape.net   
      
   AJ wrote:   
   > Hi,   
   >   
   > I have a materialized view in oracle which is a complex view of 4   
   > tables which   
   > belongs to different schemas..   
   >   
   > create materialized view materialized_sum   
   > refresh complete   
   > start with sysdate   
   > next sysdate+1/24   
   > as   
   > select  ano,sno,count(id) assigned,   
   > count(decode(sstno,70,1))completes,count(decode(sstno,75,1)) ftq,   
   > (count(start_date)-count(complete_date))breakoffs   
   > from   
   > tab1,tab2,tab3,tab4   
   > where tab1.id=tab2.id and   
   > tab4.pkey=tab3.pkey   
   > and tab2.fkey=tab3.pkey   
   > group by ano,sno;   
   >   
   > Now the problem is the refresh interval...Is there any way I can   
   > specify a fixed refresh interval...What happens is after the first   
   > refresh  let us say at 10.00.00 am ..next refresh should be at 11.00   
   > am..instead of that, the interval slips by 30-60 seconds..so the next   
   > refresh would be at 11.00.30 am..   
   >   
   > I have a dependent job which runs after the view is refreshed....   
   >   
   >   
   > Any help is greatly appreciated..   
   >   
   > Thanks   
   > Arpit   
      
   ...and you reschedule it every hour... The point is,   
   jobs get reschedyled AFTER they complete; looks asif   
   your job runs for about 30 secs.   
   You better reschedule using trunc(sysdate) plus a fixed   
   interval - you may round down to an hour, a minute, whatever.   
      
   --   
      
   Regards,   
   Frank van Bortel   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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