What is Query optimization in SQL Server ?
What is Query optimization in SQL Server ?
Ask by Ashutosh Kumar Verma
Updated 10 Nov 2021
Query Optimization in SQL:
Query Optimization is technique in which selects one of the best effective plan from more plans for processing the query. It is the job of the system to select a query evaluation plan which will minimize the cost of query evaluation.
Query optimization means to minimize the cost of query. The cost of a query is depends on many factors. Optimizer is used to optimize the query. Query optimization is process in which to select the optimal way to solve the query. But it is not necessary the select way is perfect because there are many way to solve a query in SQL.