SQL & PL/SQL

Hi gang,

Looking for some geniuses (genii) to help me with the following problem:

I have declared a nested table as such:

TYPE nta IS TABLE OF VARCHAR2(1) INDEX BY PLS_INTEGER;
TYPE ntb IS TABLE OF nta INDEX BY VARCHAR2(20);
TYPE ntc IS TABLE OF ntb INDEX BY VARCHAR2(20);

In tests, I have successfully loaded values into this table (of tables) and can retrieve values by using the syntax v_value := ntc(idx1)(idx2)(idx3);

However, I have written the following line:

ntc.DELETE(idx1)(idx2)(idx3);

and the procedure fails to compile with the following error:

PLS-00801: internal error [22503]

Have I missed something or is this code flukey and shouldn't work in the first place?

Thanks in advance.

Leo