I have to delete some amount of data and insert some into same table.
Will there be any performance improvement if we go for Upsert in a loop ?
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I have to delete some amount of data and insert some into same table.
Will there be any performance improvement if we go for Upsert in a loop ?
No. Just use a simple
…probably in a transaction too
You can’t “UPSERT” in SQL Server 2005. MERGE was added for SQL Server 2008.
A loop is almost never the answer for any query in a database engine