Chained variables | Grafana Labs
grafana.com › docs › grafanaChaining variables create parent/child dependencies. You can envision them as a ladder or a tree. The easiest way to create a new chained variable is to copy the variable that you want to base the new one on. In the variable list, click the Duplicate variable icon to the right of the variable entry to create a copy.
Grafana variables MySQL - Stack Overflow
stackoverflow.com › questions › 53559030Nov 30, 2018 · In the section "Using Variables in Queries" they show how to use variables inside of a MySQL query from Grafana. $hostname here is the variable: SELECT UNIX_TIMESTAMP (atimestamp) as time, aint as value, avarchar as metric FROM my_table WHERE $__timeFilter (atimestamp) and hostname in ($hostname) ORDER BY atimestamp ASC Share
Templates and variables | Grafana Labs
grafana.com › docs › grafanaTemplates and variables. A variable is a placeholder for a value. You can use variables in metric queries and in panel titles. So when you change the value, using the dropdown at the top of the dashboard, your panel’s metric queries will change to reflect the new value. Variables allow you to create more interactive and dynamic dashboards.
Variable syntax | Grafana Labs
grafana.com › docs › grafana${var_name} Use this syntax when you want to interpolate a variable in the middle of an expression. ${var_name:<format>} This format gives you more control over how Grafana interpolates values. Refer to Advanced variable format options for more detail on all the formatting types. [[varname]] Do not use. Deprecated old syntax, will be removed in ...