
about_Variables - PowerShell | Microsoft Learn
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 default value of all variables is …
Define variables - Azure Pipelines | Microsoft Learn
Oct 27, 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 variable …
Work with variables - Microsoft Copilot Studio
Oct 4, 2025 · In the Variable properties panel, you can rename a variable, see where your agent uses it, or convert it to a global variable. You can't convert a global variable back to a topic variable, however.
Predefined variables - Azure Pipelines | Microsoft Learn
When you use a variable in a template that isn't marked as available in templates, the variable doesn't render. The variable doesn't render because its value isn't accessible within the template's scope.
SET @local_variable (Transact-SQL) - SQL Server | Microsoft Learn
Nov 18, 2025 · The following example creates a local variable named @dept and uses this local variable in a SELECT statement to find the first name (FirstName) and family name (LastName) of all …
about_PSItem - PowerShell | Microsoft Learn
PowerShell includes the $PSItem variable and its alias, $_, as automatic variables in scriptblocks that process the current object, such as in the pipeline. This article uses $PSItem in the examples, but …
Set-Variable (Microsoft.PowerShell.Utility) - PowerShell
The Set-Variable cmdlet assigns a value to a specified variable or changes the current value. If the variable does not exist, the cmdlet creates it.
Types - C# language specification | Microsoft Learn
Value types differ from reference types in that a variable of a value types directly contains its data, whereas a variable of a reference type stores a reference to its data, the latter being known as an …
Condition Variables - Win32 apps | Microsoft Learn
Jan 7, 2021 · It is often convenient to use more than one condition variable with the same lock. For example, an implementation of a reader/writer lock might use a single critical section but separate …
Manage variables and the variables pane - Power Automate
Jul 1, 2025 · The Variable name, Data type, and External name fields are required to create an input variable. Input variables of instance or session type (Browser, Excel, Word, Outlook, Access, or …