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+++
title = "Troubleshoot queries"
description = "Guide to troubleshooting Grafana queries"
keywords = ["grafana", "troubleshooting", "documentation", "guide", "queries"]
weight = 400
+++
# Troubleshoot queries
This page provides information to solve common dashboard problems.
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## I get different results when I rearrange my functions
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Function order is very important. Just like in math, the order that you place your functions can affect the result.
## Inspect your query request and response
The most common problems are related to the query and response from your data source. Even if it looks
like a bug or visualization issue in Grafana, it is almost always a problem with the data source query or
the data source response. Start by inspecting your panel query and response.
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For more information, refer to [Inspect request and response data ]({{< relref "../panels/query-a-data-source/inspect-request-and-response-data.md" >}} ).
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## My query is slow
How many data points is your query returning? A query that returns lots of data points will be slow. Try this:
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- In **Query options** , limit the **Max data points** returned.
- In **Query options** , increase the **Min interval** time.
- In your query, use a `group by` function.
