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 …

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 …

Nov 18, 2025 · The scope of a variable is the range of Transact-SQL statements that can reference the variable. The scope of a variable lasts from the point it's declared until the end of the batch or stored …

Nov 18, 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 Expressions.

Nov 25, 2025 · In Copilot Studio, you can use the Variables panel to see information about an environment variable. The Variable properties panel also has a link to Power Apps, the authoring …

Dec 15, 2025 · Follow the steps for creating a variable library and using variable values in various stages of a deployment pipeline.

Mar 22, 2024 · Use the Set function to set the value of a global variable, which temporarily holds a piece of information, such as the number of times the user has selected a button or the result of a data …

Nov 18, 2025 · SELECT @ local_variable is typically used to return a single value into the variable. However, when expression is the name of a column, it can return multiple values.

Jul 15, 2025 · To reference a variable in a variable group, you can use macro syntax or a runtime expression. In the following examples, the group my-variable-group has a variable named myhello.

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.