Is there a way to extract only the non-empty fields of an oracle table?
Let's say I have a table like this one,
col_a col_b col_c col_d col_e
NULL NULL NULL NULL 5
NULL NULL NULL 8 6
0 NULL NULL NULL 3
NULL NULL NULL 0 1
and the subtable that I would like to extract should be
col_a col_d col_e
NULL NULL 5
NULL 8 6
0 NULL 3
NULL 0 1
Thanks