Question

I have 2 basic tables :

Table1
id1 | lastModif_date
1     10/10/10 
2     10/10/10
3     10/10/10

and

Table2
id2 | lastModif_date
1     11/02/11 
2     11/02/11

I’d like to have a select query that return

id1  | id2  | lastModif_date
1      null   10/10/10
2      null   10/10/10
3      null   10/10/10
null   1      11/02/11
null   2      11/02/11

This must be really easy to do, but I can’t catch it …

Answer 1

select table1.id1, null as id2, table1.lastModif_date from table1
union all
select null, table2.id2, table2.lastModif_date from table2