comme ceci :
SQL> select * from network_table;
ORIG_CODE ORIG_SV DEST_CODE DEST_SV
---------- ---------- ---------- ----------
14 1 15 1
12 2 22 2
18 4 11 1
15 1 22 3
14 3 11 1
SQL> select case name when 'ORIG_SV' then orig_code else dest_code end code, val
2 from network_table
3 unpivot (val for name in (orig_sv, dest_sv));
CODE VAL
---------- ----------
14 1
15 1
12 2
22 2
18 4
11 1
15 1
22 3
14 3
11 1
ou 10 g et moins :
SQL> select case r when 1 then orig_code else dest_code end code,
2 case r when 1 then orig_sv else dest_sv end val
3 from network_table, (select rownum r from dual connect by level <= 2)
4 /
CODE VAL
---------- ----------
14 1
12 2
18 4
15 1
14 3
15 1
22 2
11 1
22 3
11 1
