Thursday 6 April 2017

SQL Server Performance Killers

SQL Server Performance is the main problem after writing the queries. The main performance
Killers in SQL Server are as follows
Ø  Poor indexing
Ø  Inaccurate statistics
Ø  Poor query design
Ø  Poor execution plans, usually caused by bad parameter sniffing
Ø  Excessive blocking and deadlocks
Ø  Non-set-based operations, usually T-SQL cursors
Ø  Poor database design
Ø  Excessive fragmentation
Ø  No reusable execution plans
Ø  Frequent recompilation of queries
Ø  Improper use of cursors
Ø  Improper configuration of the database log
Ø  Excessive use or improper configuration of TempDB

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