Top 5 tips for performance tuning using execution plan in SQL Server
Top 5 tips for performance tuning using execution plan
Top 1. Search for Lazy Spool Operator, points to duplicate aggregation operations. This is most expensive operator.
Top 2: Hash match, points to missing index.
Top 3: Non SARGable queries, use of functions or expression in where conditions. Example cast(column as date)='2023-01-01', Left(col,2)='SA', etc
Top 4: Partition Elimination
Top 5: Bad Views
#shorts