Tag: MERGE UNION

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Tips for using query hints in SQL Server 2019

Tips for using query hints in SQL Server 2019 If your query is very slow, try the following before using query hints: – rebuild indexes used in the query (or defragment them using DBCC INDEXDEFRAG), – update statistics on the relevant tables, – consider creating new indexes for this query, – rewrite your query to provide better execution plan. Use...

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