Let'say i have 2 tables.
First table has: ID, Description
Second has ID, (same id that table1)
in first table i have values: 1,2,3,4,5
how can I do a SELECT that if there is nothing in table 2 it returns 1,2,3,4,5 if lets say there is 1 and 3 it will return 1,2,4,5
lets say in table 2 there is 4,5 it would return 1,2,3
can y u help ?