SQL & PL/SQL

hello,

i have one requirenment in whcih i have 4 coulmns with differnet levels of ids.

now i want to display that id in one single column.

for example Tabel : TEST


seq id1 id2 id3 id4 id5

1 123 232 387 343 343
2 243 755 465 344 453


i have a table as above but in orignal table i have more than 60,no000 rows so i can not do manually.

now this ids i want to display in one row.

so result will look like this


TEST RESULT :


seq id

1 123
2 232
3 387
4 343
5 343
6 243
7 755
8 465
9 344
10 453



thanks in advance for your support