janet wrote:
"PM \(pm3iinc-nospam\) CGO" <PM (pm3iinc-nospam)@cgocable.ca> wrote in message news:<YG*****************@charlie.risq.qc.ca>...
summary tables could also help depending on the case.
PM
hi
I tried created cluster index based on the predicate which had highest
cardinality. but did not help...
You do realize that when you create a clustering index, you have to reorg
the table afterwards, right?
Also, choosing the column with the highest cardinality for a clustering
index is probably not be the best choice. You want the clustering index
to be on a column that has many rows you need to access in a query. For
example, in a sales_order table, you would want to cluster on
customer_number, not invoice_number, so that all invoices for a
particular customer are on the same physical page (or close by).
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