The SQL Check Action object can be used to check data queries in the database, to ensure that data integrity and ensure that results are returned as expected.
Workflow tab
The Write Variables option ensures that the “Package Action” logs the variable values into the “Action vars before log file” before the action is executed and logs the updated variable values into the “Action vars after log file” after the action completes.
It is usually used for debugging and not recommended for production environment.