Where to find the slowest query in a stored procedure?

Where to find the slowest query in a stored procedure?

You may have been told which stored procedure runs slow by a user or manager, or you might have found it by looking in SQL Server DMVs. Either way, once you have detected the offending procedure, where do you start? If you’re running SQL Server 2016, one option is Query Store.

Why is it important to use SQL Server query store?

The SQL Server Query Store feature provides you with insight on query plan choice and performance. It simplifies performance troubleshooting by helping you quickly find performance differences caused by query plan changes.

Is there a query store in SQL Server 2016?

There are indeed multiple methods. Since you have SQL Server 2016, may I recommend Query Store? You can enable it per database from the “properties” menu in SSMS, or by running something similar to the following script: Once it is turned on, you can look at query performance details.

How to monitor performance by using the query store?

Monitoring performance by using the Query Store. The SQL Server Query Store feature provides you with insight on query plan choice and performance. It simplifies performance troubleshooting by helping you quickly find performance differences caused by query plan changes.

Is there a way to track stored procedure?

Whether it’s logged in the application, or the application logs to a table, it’s a much more reliable way to track stored procedure calls, parameters passed in, and how long they ran for. You can even track which users are running queries, and bring people running horrible ones in for training. This can take place a classroom or a dark alley.

How many SQL queries are executed during stored procedure?

Basically during execution of the stored procedure the executed 3 SQL queries, the first Select Into query takes 99% of time.

What to do when SQL Server is slow?

The next tool is the “Query Store”. This is helpful and could save your life in situation where you were called in the middle of the night to check why SQL Server was slow 1 hour earlier. Generally, prior to SQL Server 2016, without any third-party application or custom solutions, you are not able to look at the history of query execution.

Which is the best way to measure query execution time?

If you can use aggregates, then Query Store and the DMVs are good, but STATISTICS TIME and Actual Execution Plans will be an utter pain in the bottom. If you’re looking at a one off, immediate feedback, then, if you’ve captured an Actual Execution Plan, you can use it. Otherwise, STATISTICS TIME, Trace or Extended Events are the way to go.

When to enable slow query log in MySQL?

In my understanding if we enable slow query log, MySQL will capture all SQL statements that take more than long_query_time seconds to execute into the log. If so below testing puzzled me:

Which is the second query in a stored procedure?

A quick review of the duration and CPU columns helps us identify the second query in the stored procedure as the one that takes the longest to execute. There are a few important items worth noting about the query we ran, and its output: