Database Tuning (MOSC)

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Performance issue on using union with view table.

edited Mar 23, 2015 10:02AM in Database Tuning (MOSC) 7 commentsAnswered

Hi,

I created the view using the one or more table columns joins, for that i created the UNION of the select statements to remove the duplicate values .If i am running the query its taking the very long time to proceed the result,its very very poor performance .

For this i also tried the distinct key word in the select statement ,its also not works,

I Attached my Query with this,please review it and give me your great suggestion to improve the performance.

Thnsk,

Oracle Developer.

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