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Editorial Team
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Asked: 2026-06-05T23:51:01+00:00

Can anyone explain to me why there is a dramatic difference in performance between

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Can anyone explain to me why there is a dramatic difference in performance between MySQL and SQL Server for this simple select statement? 

SELECT email from Users WHERE id=1

Currently the database has just one table with 3 users. MySQL time is on average 0.0003 while SQL Server is 0.05. Is this normal or the MSSQL server is not configured properly?

EDIT:
Both tables have the same structure, primary key is set to id, MySQL engine type is InnoDB.
I tried the query with WITH(NOLOCK) but the result is the same.

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1 Answer

  1. Editorial Team

    Are the servers of the same level of power? Hardware makes a difference, too. And are there roughly the same number of people accessing the db at the same time? Are any other applications using the same hardware (databases in general should not share servers with other applications).

    Personally I wouldn’t worry about this type of difference. If you want to see which is performing better, then add millions of records to the database and then test queries. Database in general all perform well with simple queries on tiny tables, even badly designed or incorrectly set up ones. To know if you will have a performance problem you need to test with large amounts of data and many simulataneous users on hardware similar to the one you will have in prod.

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