>>You don't need to use 1 condition per select. Split them in 2 equal parts.
>
>Ok, it would probably range within the same timeframe.
>
>>There is no other magic bullet, I think, except for the case when all conditions are for the same column. In this case you would use IN subselect.
>
>I thought that maybe SQL Server had something like WHERE InList(Table.PrimaryKey, 1, 2, 3).

Sure, it has IN subselect

WHERE PK IN (1,2,3)

This is what I meant by conditions on the same column.