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Grafana Cloud
Enterprise
Open source
Query and transform data
Grafana supports many types of data sources . Data source queries return data that Grafana can transform and visualize. Each data source uses its own query language, and data source plugins each implement a query-building user interface called a query editor.
About queries
Grafana panels communicate with data sources via queries, which retrieve data for the visualization. A query is a question written in the query language used by the data source.
You can configure query frequency and data collection limits in the panel’s data source options. Grafana supports up to 26 queries per panel.
Important: You must be familiar with a data source’s query language. For more information, refer to Data sources .
Query editors
Each data source’s query editor provides a customized user interface that helps you write queries that take advantage of its unique capabilities.
Because of the differences between query languages, each data source query editor looks and functions differently. Depending on your data source, the query editor might provide auto-completion features, metric names, variable suggestions, or a visual query-building interface.
For example, this video demonstrates the visual Prometheus query builder: