Originally posted by BoggyMcCBoggyFace
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Previously on "Oracle Materialized View Performance in this situation"
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Thanks for replies.
Yeah takes 30mins to refresh the MV but only need to do it once a day and it will hold a rolling years worth of data, I'm still to tune it but I just need to get some in and can come back to tuning it later. I didn't see any real performance difference between summary table or the MV but in the end I went with the MV as if I need to change it its a lot easier and quicker to get released as I just generate the MV via an SP compared to doing it with a summary table, where it would need Table changes, ETL changes etc.
cheers
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Originally posted by BoggyMcCBoggyFace View Postnote it takes 30mins to populate the MV, when I tested the MV vs. the summary table the summary table was actually faster.
Generally should an MV be faster in my circumstances, I don't buy it that it would and my testing shows this, just want to understand if what I'm being told is bollocks or not.
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The table is "on disk" so why would the materialised view be any faster?
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Oracle Materialized View Performance in this situation
Basically I already have a summary table built that I can report off still a lot of rows 400mil rows, for the report I don't need to join this table to anything the 1 table has all I need. Now I'm being told that I should pull that data into an Oracle Materialized view and it would be even fast 'as its on disk', note it takes 30mins to populate the MV, when I tested the MV vs. the summary table the summary table was actually faster.
Generally should an MV be faster in my circumstances, I don't buy it that it would and my testing shows this, just want to understand if what I'm being told is bollocks or not.Tags: None
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