Tag: FAST_FORWARD

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Some tips for using SQL Server 2019 cursors

Some tips for using SQL Server 2019 cursors Try to avoid using SQL Server cursors, whenever possible. SQL Server cursors can results in some performance degradation in comparison with select statements. Try to use correlated subquery or derived tables, if you need to perform row-by-row operations. Use READ ONLY cursors, whenever possible, instead of updatable cursors. Because using cursors can…...

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Tips for using SQL Server 2017 cursors

Tips for using SQL Server 2017 cursors Use READ ONLY cursors, whenever possible, instead of updatable cursors. Because using cursors can reduce concurrency and lead to unnecessary locking, try to use READ ONLY cursors, if you do not need to update cursor result set. Try to avoid using SQL Server cursors, whenever possible. SQL Server cursors can results in some…...

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Tips for using SQL Server 2014 cursors

Tips for using SQL Server 2014 cursors Try to avoid using insensitive, static and keyset cursors, whenever possible. These types of cursor produce the largest amount of overhead on SQL Server 2014, because they cause a temporary table to be created in TEMPDB, which results in some performance degradation. Use FAST_FORWARD cursors, whenever possible. The FAST_FORWARD cursors produce the least…...

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