Problem with an empty collection

Question

When a procedure executes
FOR i IN g_tabla_situacion.FIRST..g_tabla_situacion.LAST
LOOP
END LOOP;
and g_tabla_situacion has no elements, ORACLE returns a
"*-6502:ORA-06502: PL/SQL: numeric or value error*"
How can I avoid this problem?
Now I am doing...
IF ( g_tabla_situacion.COUNT > 0 ) THEN
FOR i IN g_tabla_situacion.FIRST..g_tabla_situacion.LAST
LOOP
END LOOP;
END IF;
but it doesn't seem the best solution...
Thanks.
Edited by: pacoKAS on 19-feb-2010 0:34

Answer 1

pacoKAS wrote:
I was thinking in a solution that forces g_tabla_situacion.LAST to be lower than g_tabla_situacion.FIRST when I load g_tabla_situacion with no registers....Not sure what you mean, but if your collection is not dense (as in only these indexes are present: 1 - 2- 5) you will get an exception. The method that I showed you will always work correctly, regardless if the collection is Sparse (containing gaps) or if the collection doesn't contain any entries.