Hi,
We're on DB2 9.7 FP 5 with SAP.
We have Autorunstats & Real time stats enabled on our BW system.
However, some tables have old statistics...say 2-3 days old (these tables have 0% deviation).
Hence, when programs/jobs access these tables the performance is very poor & unless we run a manual update stats on the particular table, the job doesn't complete.
Does running a manual stats on a table exclude it from Autorunstats forever ?
Also, in this case please advise if we need to include a profile for the autorunstats to update stats on those few tables say every day ?
Does autostats not update the statistics coz the deviation is 0% ?
At the point we've scheduled runstats manually for 3 tables to run daily...
Please help.
Thank you.
-S.
We're on DB2 9.7 FP 5 with SAP.
We have Autorunstats & Real time stats enabled on our BW system.
However, some tables have old statistics...say 2-3 days old (these tables have 0% deviation).
Hence, when programs/jobs access these tables the performance is very poor & unless we run a manual update stats on the particular table, the job doesn't complete.
Does running a manual stats on a table exclude it from Autorunstats forever ?
Also, in this case please advise if we need to include a profile for the autorunstats to update stats on those few tables say every day ?
Does autostats not update the statistics coz the deviation is 0% ?
At the point we've scheduled runstats manually for 3 tables to run daily...
Please help.
Thank you.
-S.