自定义变量和内置变量的使用方式没有区别,都是在 SQL 中用$variableName进行引用。 自定义变量支持多种类型,常见的类型包括Query(查询)、Constant(常量)、Interval(间隔)、Data source(数据源)等。 自定义变量可以引用其他自定义变量,比如一个变量表示区域,另一个变量可以引用区域的值,来查询这个区域的设备。 添加查
Hi, It would be nice to be able to use variable as value in query editor for e.g.database(imagine you have multiple databases for more environments a you would like to switch dashboard to different DB by simply changing variable) Now if I want to accomplish this I cannot simply use $...
① General(常⽤),Name(定义变量名);Label(标签),在仪表盘上显⽰的标签名字;Hide(隐藏),⽤于隐藏label(标签)或者暂时不 ⽤variable(变量);Type(变量的类型)⼜包括如下⼏种可选项: 1、Interval(间隔),此变量可以表⽰查询的时间跨度,这样在查询的SQL中不⽤硬编码时间间隔,⽽是使⽤Interval变量来...
# instance name, defaults to HOSTNAME environment variable value or hostname if HOSTNAME var is empty ;instance_name = ${HOSTNAME} # force migration will run migrations that might cause dataloss ;force_migration = false ### Paths ### [paths] # Path to where grafana can store temp files...
Fallbacks to TZ environment variable if not set. rendering_timezone = # Instruct headless browser instance to use a default language when not provided by Grafana, e.g. when rendering panel image of alert. # Please refer to the HTTP header Accept-Language to understand how to format this ...
Using the Regex Query option, you can filter the list of options returned by the variable query or modify the options returned. This section shows how to use regex to filter and modify values in the variable dropdown list. Using the Regex Query option, you filter the list of options re...
SQL Server Declare variable in Grafana query from dashboard variableBasically, at the last line of...
In this blog, we’ll explain how to use other data sources for trace discovery in Grafana Tempo, our new distributed tracing backend. Grafana Tempo|Intermediate Blog post Learn Grafana: Share query results between panels to reduce load time ...
Another option is a query that can create a key/value variable. The query should return two columns that are named __text and __value. The __text column value should be unique (if it is not unique then the first value will use). The options in the dropdown will have a text and ...
Sie können diese Dropdown-Felder verwenden, um die in Ihrem Dashboard angezeigten Daten zu ändern. Weitere Informationen zu Vorlagen und Vorlagenvariablen finden Sie unterVorlagen. Abfragevariable Wenn Sie eine Vorlagenvariable dieses Typs hinzufügenQuery, können Sie eine MySQL-Abfrage...