Grafana use variable in query dashboard. For an introduction to .

Grafana use variable in query dashboard. For example you can pick variable of Query type and name it age and populate it with query to InfluxDB. Note: To create and manage variables in Grafana, you need either editor or admin permissions. The variable setup I am using is a custom variable with numerical values. During interpolation, the variable value might be escaped in order to conform to the syntax of the query language and where it is used. Manage queries. Variables types Grafana uses several types of variables. I have a table panel setup and I am using the ‘Filter data by values’ transformation. For an introduction to templating and template variables, see Templating and Add and manage variables. This works well as we add new machines we can just update this variable. Use query variables Grafana refers to such variables as template variables. Aug 2, 2022 · Hi Team, New to Grafana, I’m trying to filter the correct data set with the help of dashboard variables. Grafana refers to such variables as template variables. Oct 30, 2024 · Variables are displayed as dropdown lists at the top of the dashboard. Before queries are sent to your data source the query is interpolated, meaning the variable is replaced with its current value. Grafana lists these variables in drop-down select boxes at the top of the dashboard to help you change the data displayed in your dashboard. 0 through Docker. Fully Qualified API Name: MyAPICollection. For an introduction to templating and template variables, refer to the Templating and Add and manage variables documentation. Mar 1, 2021 · You need to go to dashboard settings and create a variable. When I hard coded it works Feb 11, 2022 · Hello, I am currently using a Grafana8 dashboard. Explore variable types, use cases, and how to set up template variables for flexible data analysis and visualization. Use query variables. I’d like to re-use that variable in my alerts. You can see the variable contains the desired value in the panel name: But it says “No data”. Click Apply. 1 Create Level 1 Variable Before queries are sent to your data source the query is interpolated, meaning the variable is replaced with its current value. Variable type Description Query Query-generated list of values such as metric names, server …, Sep 14, 2022 · I'm fairly new to grafana and I am confused how to solve this elegantly: I have a custom dashboard variable ["device1", "device2", "device3"]. One variable will contain the “root” name of an api and the actual api application name. Learn how to effectively use variables and template variables in Grafana to create dynamic and interactive dashboards. Write the query using the query editor. For my custom variable, I use this setup: I add the variable to the query in the following way: This works as expected and it adds a entry to the graph for each selected value of the custom variable. Query, visualize, and alert on data and visualize data Grafana interprets var-example=value1&var-example=value2 as the dashboard variable example with two values: value1 and value2. 3. g. If I put the name to the filter statically, it gets the data: But I want to use the variable in order to be able to dynamically use the dashboards / repeat panels. Business Dashboards: Combine constant and query variables to toggle between apps, sales regions, or product categories. I know how to use the $(variablename) Syntax to query for the currently selected option. In the example below, I have setup the transformation to filter the value using ‘Is Mar 24, 2023 · The variable pcFilter is declared in order to take the value of the Grafana's dashboard variable PC and then added to the WHERE conditions. If you have multiple identical data sources or servers, you can make one dashboard and use variables to change what you are viewing. . Feb 16, 2025 · Hi, I’m new to Grafana. Jan 20, 2025 · Step 1: Create table in postgresql and insert data in it to visualize on dashboard panel. Then you reference this variable in panel queries by dollar sign and curly brackets: ${age}. I am new to Grafana and PostgreSQL so I was struggling to find any info on this on youtube/stack overflow/grafana community forums/grafana docs. Types of expressions. You can: Jun 17, 2024 · Creating a Variable in Grafana. You can use variables in metric queries and in panel titles. Query variables enable you to write a data source query that can return a list of metric names, tag values, or keys. I personally would recommend to start with variables of type "Custom", to see how they are behaving and how they are selected by user of dashboard. Step 2: Create new dashboard and select table visualization Step 3 : Add variables to filter the data Create the Variables in Grafana To filter and visualize your fruit data, you’ll need to create variables for dynamic dropdowns (Fruit Type, Fruit Subtype, and Fruit Details). For example, a query variable might return a list of server names, sensor IDs, or data centers. API Performance Tracking: Use interval variables to zoom in on specific time ranges. The variable will show up on the top of the dashboard. Instead of hard-coding details such as server, application, and sensor names in metric queries, you can use variables. Click on 'New' and choose the type of variable you want to create. In Grafana, I want to add a variable to an existing dashboard to filter data by agent. Here’s what I mean. MyApi The Problem: There are cases where I need to use only the application name (“MyApi”) and other cases where I need to use the fully Learn about the types of variables you can add to dashboards and how Jan 24, 2022 · what is the syntax of querying the dashboard? ive read this (awaited to find syntax there) Grafana Labs Add variables. MongoDB templates and variables. Oct 29, 2023 · So I try to use this variable now to create a dashboard panel in the filter. My question: is there For more information about query options, refer to Query options. Without declaring the variable and including the WHERE condition the table is correctly shown, but with the code from above I get this error: db query error: mssql: Must declare the scalar variable "@pcFilter". Add variables to metric queries and panel titles to create interactive and dynamic dashboards Grafana. Multi-Cluster Monitoring: Query variables help monitor multiple Kubernetes clusters. Expressions work with two types of data. 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 Jun 2, 2023 · If values dependent variable are not known on the creation stage, or if you want second variable to have more than one value for user to chose from, you'll need to use two variables and some (pseudo-)query with first variable as parameter to generate value of the second one. Grafana queries the data source and visualizes the data. Grafana organizes queries in collapsible query rows. Grafana Viewers can use variables. Dec 4, 2020 · Separate from this, I am also unsure how I could display all selected variables in a single grafana table panel. May 19, 2023 · How to define and use query variables in Grafana's KQL log queries? You can add variable as described in official documentation. My problem is that the names of the entries in the graph aren’t very readable, these for Each individual expression or query is represented by a variable that is a named identifier known as its RefID (e. Each query row contains a query editor and is identified with a letter (A, B, C, and so on). But in an overview dashboard I want to query for all 3 devices from the variable. Variables and templates also allow you to single-source dashboards. This simplifies maintenance and upkeep enormously. In addition to the dropdown list, variables can display as text boxes at the top of a dashboard for easy access (though, can optionally be hidden from view). I have a dashboard that uses a variable to define the list of hostnames I’m interested in displaying data for. In this blog, we’ll show you how to use the new query variable editor so you can get your dashboards up and running quicker. Problem 01 : The dependent queries do not load data. For an introduction to Mar 26, 2021 · I am am trying to figure out to create a variable that contains the value of another variable. Jun 1, 2023 · Hi all, I am trying to add multiple measurements from InfluxDB with one query using custom variables. To create a variable in Grafana, navigate to your dashboard settings and select 'Variables'. A template is any query that contains a variable. What you need to know about the Grafana Loki query variable editor Apr 11, 2022 · In grafana there is "variables", go to "dashboard settings" --> variables, from there create new variable with type "query", name it like "area" and put sql query Sep 25, 2023 · I am using Grafana v10. This dashboard in Grafana Play passes the variable server with multiple values, and the variables app and interval with a single value each. Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard. Example. 1. In my setup I have a centeal Prometheus instance and a couple of Prometheus agents which each send their metrics to the central Prometheus instance, each agent adds a label with its name as value. I want to be able to filter the data by a value that is assigned to a dashboard variable. I’d also be okay if I just define the variable again in the Alert page. So I added a query variable with the label set by the agents. Add a query variable. For instance, to create a query variable that will pull in a list of server names, you could use:-- SQL query to fetch server names SELECT server_name Nov 15, 2022 · But now you can select variables from a drop-down menu at the top of your Grafana dashboard so you can easily switch the data sources being displayed. The variable values change as they dynamically fetch options with a data source query. , the default letter A or B). Neither seem to be things one can do with Dec 13, 2024 · Common Use Cases for Grafana Variables. Templates A template is any query that contains a variable. The following topics describe how to add and manage variables in your dashboards: Add variables Manage and inspect variables Variable syntax A variable is a placeholder for a value. To reference the output of an individual expression or a data source query in another expression, this identifier is used as a variable. To accomplish I shared the variables among the other dashboard queries. pjzfn rtx dtsfb spgmh aetgj zedeq xpsw cyl ewjzmt gcocnrc