WebMar 21, 2024 · You can use chained variable queries in any **data source** that allows them. Interpolating of variables happens in directly in the data source. And Custom variables don’t support that. I have quickly checked the feature request on github and haven’t found this as feature request. WebOct 9, 2024 · Use variable fomating, which creates correct SQL syntax (and more effective approach + remove duplicates). You can use Grafana advanced variable format options. Example: 1.) Site variable: SELECT DISTINCT Site FROM problems_solved. 2.) Topic variable: SELECT DISTINCT topic FROM problems_solved WHERE Site IN ($ …
How to Use Grafana Variables to Make More Interactive …
WebIf the variable has spaces in the name, then you can use a brace syntax like $ {my variable}. Numeric constants may be in decimal ( 2.24 ), octal (with a leading zero like 072 ), or hex (with a leading 0x like 0x2A ). Exponentials and signs are also supported (e.g., -0.8e-2 … WebApr 12, 2024 · Example: Original Query: SELECT event_name FROM event_log WHERE $__timeFilter(time_column) Potential Query: variable _TableName [Potential Values: … how do we calculate marginal cost
How to use Grafana variables to make more interactive …
WebJul 17, 2024 · Creating a new variable The critical bits are in the query. Whatever database column is assigned as __text is used whenever the variable is displayed and whatever is assigned to __value is used as the actual value when Grafana makes a query. The documentation of the mysql data source has a bit more information on what you can do … Panel titles and metric queries can refer to variables using two different syntaxes: $varname This syntax is easy to read, but it does not allow you to use a variable in the middle of a word. Example: apps.frontend.$server.requests.count ${var_name} Use this syntax when you want to interpolate a variable in the middle … See more Syntax: ${var_name:option} Test the formatting options on the Grafana Play site. If any invalid formatting option is specified, then globis the default/fallback option. An alternative syntax (that might be deprecated in the … See more Formats single- and multi-valued variables into a comma-separated string, escapes ' in each value by '' and quotes each value with '. See more Formats single- and multi-valued variables into a comma-separated string, escapes " in each value by \" and quotes each value with ". See more Formats single- and multi-valued variables into a comma-separated string, escapes ' in each value by \' and quotes each value with '. See more WebDashboard Variables - Grafana Tutorials Dashboard Variables Video Lecture Description In the next few lessons, we will look at how to create and use dashboard variables. We will create the variables using the Data sources set up … how do we calculate gpa