Assign a list of integers to an @var

Question

I can:

declare @idOrder int
set @idOrder = 21319

I want:

declare @idOrder int
set @idOrder = (21319, 21320)

Answer 1

You can't do that as long as it's an int, as that's not a valid value for that datatype. A datatype that could take several integers is a table

declare @idOrder table (id int)

insert into @idOrder values(21319)
insert into @idOrder values(21320)

delete from Orders where idOrder in (select id from @idOrder)