Create a new query from other table

Hello

I need to launch a query to another database with the data obtained in another table.

Example:

1) Fill with SQL the Data Table

2) Create a new Table with column customer

Now I neeed to create a SQL query to another database and server with Customer in (COLUMN) the only idea the only idea I can think of is to pass it to ',' join. And then pass it as a parameter in an SQL IN

'9556','288'

Is there any other way?

Can you help me make a ',' and pass it by parameter?

I can't do a merge query since there is a lot of data

Thanks