Interview Question- Fetching records based on column

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Hi all,

I was asked a question in interview.Suppose an employee table with columns ID,Name,Age,
Sex,Designation and there are lakhs of records.

Query is
Select Name,Age,Sex from Employee where Designation=@EmpDesignation.

WHat is alternative query to improve the performance on database.How can we do that

Thanks in advance

Posted 28-Sep-13 21:17pm

DileepReddyC

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Comments

ridoy 29-Sep-13 3:48am

I think indexing would be a good option and also use a LIKE operator.

bluesathish 30-Sep-13 3:47am

create a index on designation column would reduce the retreiving time.

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thatraja · Answer 1 · 2013-10-03T05:50:00

Solution 1

Many ways, Optimize data access in SQL Server[^]

Posted 3-Oct-13 5:50am

thatraja