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  1. about_Variables - PowerShell | Microsoft Learn

    Sep 29, 2025 · Working with variables To create a new variable, use an assignment statement to assign a value to the variable. You don't have to declare the variable before using it. The …

  2. Variables overview - Microsoft Copilot Studio | Microsoft Learn

    Mar 18, 2025 · A variable is associated with a base type. The type determines what values the variable can contain and the operators that you can use when you construct a logical …

  3. Define variables - Azure Pipelines | Microsoft Learn

    Oct 1, 2025 · User-defined variables can be set as read-only. There are naming restrictions for variables (example: you can't use secret at the start of a variable name). You can use a …

  4. Get Started with Variable Libraries - Microsoft Fabric

    Aug 25, 2025 · Learn how to manage Microsoft Fabric variable libraries to customize and share item configurations in a workspace.

  5. Predefined variables - Azure Pipelines | Microsoft Learn

    Mar 25, 2025 · When you use a variable in a template that isn't marked as available in templates. The variable doesn't render because its value isn't accessible within the template's scope.

  6. Use variables in Classic release pipelines - Azure Pipelines

    Aug 16, 2024 · Each variable is stored as a string and its value can change between pipeline runs. Unlike Runtime parameters, which are only available at template parsing time, variables …

  7. DECLARE @local_variable (Transact-SQL) - SQL Server

    Aug 14, 2025 · The value can be a constant or an expression, but it must either match the variable declaration type or be implicitly convertible to that type. For more information, see …

  8. Use variables to improve your DAX formulas - DAX | Microsoft Learn

    Oct 30, 2022 · The measure definition can be made more efficient by using a variable, VAR. The following measure definition represents an improvement. It uses an expression to assign the …

  9. Manage variable groups - Azure Pipelines | Microsoft Learn

    Jul 15, 2025 · This article explains how to create and use variable groups in Azure Pipelines. Variable groups store values and secrets that you can pass into a YAML pipeline or make …

  10. Understand variables in canvas apps - Power Apps | Microsoft Learn

    Aug 27, 2025 · To declare a variable and its type, just include it in any of these functions anywhere in your app. These functions don't create variables; they only fill variables with …