# Using variables in a Job or Route

You can use a global variable or a context variable in component settings.

Information noteWarning: In database output components, when parallel execution is enabled, it is not possible to use global variables to retrieve the return values in a subJob.

## Procedure

1. In the relevant Component view, place your mouse in the field you want to parameterize and press Ctrl+Space to display a full list of all the global variables and those context variables defined in or applied to your Job or Route.

   The list grows along with new user-defined variables (context variables).

   ![Basic settings view.](https://help.qlik.com/talend/en-US/studio-user-guide/Resources/images/CtrlSpace.png)
2. Double-click the variable of your choice to fill it in the field.