PERFORMANCE ISSUE while inserting bulk data in a blank table from 2 different tables

5 pts.
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INSERT statement
SQL Server performance
how to improve insert performance in insert into mis_fcr_all_txns_susp_temp (select * from mis_fcr_all_txns_combi a where exists (select acct_no from mis_fcr_all_txns_fraud3 b where a.acct_no = b.acct_no) and a.TXN_DATE BETWEEN (REPORT_DATE - 60) AND (REPORT_DATE - 30));
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What does the execution plan look like?

I would assume that you are missing an index on either or both tables.

How do the indexes look like for these tables?

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  • carlosdl
    Have you tried running just the select statement ? how long does it take to give you the results ? I was just wondering if the performance issue is really at the insertion, or it is related to the query that provides the data to insert.
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  • Denny Cherry
    Check out my SQL Server blog "SQL Server with Mr Denny" for more SQL Server information.
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