How to set a variable as an Alias for a Datastore

Hi everybody,

I would like to know if it's possible to set a variable as an Alias for a Datastore, and how to do it, so that when I execute a Job, I can choose the database schema at that moment through the Global variable tab.

My idea would be then:

1º) Create for my job a Global Variable called '$Schema' and establish 'DEV' as its default value

2º) Create an alias in my datastore "DATA" like "DATA = $Schema"

Then, when I pressed "Execute" over the Job that uses the datastore "DATA", I would be able to use either the default schema ('DEV') or change it to another one ('PRE', 'PRO', etc).

Thanks in advance and best regards