Hi All,
I have two transaction table from which i want to create a simple view or materialized view. But the number of columns is about 200. So i want to know at max how many columns is advisable from the performance point of view.
Even though i will create 200 columns in a view , for a perticular client installation i may not use all the columns.
one more thing i will never use 200 columns in the select statement . At a time i will use only 4/5 columns.
It may happen from this four column one column will be the 1st and 2nd column will be the 200th one.
I want to know how it affects the performance and in which scenario . Please help if any body knows or already faced this kind of scenario.
I am using oracle 10g .
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