ARRAY and records at multiple level ? please help

Question

Hi experts!!
I am struck up with a problem. If u can please help me.
I need a structure of this type.
create type GRADE as object(
grade varchar2(30)
/ -- works fine , creates
create type GRADE_ARRAY as VARRAY(10) of GRADE;
/ -- works fine and creates
create type SPECIES as object
Species_number number,
array_of_grade GRADE_ARRAY
/ works fine
create type SPECIES_ARRAY as VARRAY(20) of SPECIES;
-- error comes here.. Can not have multiple level..type error
and so can not go ahead. In fect I wanted to use next level also. like this.
The next command remains my dream only then because I could not create the SPECIES ARRAY it self..
create type TIMBER as object
timber_mark varchar2(6),
no_species number,
array_of_species(20) SPECIES_ARRAY
the problem is for multiple level ARRAY AND RECORD/object combination..
I tried with OBJECT AND VARRAY it does only for one level.. not even two level.
my Mail ID:
[email protected]
Thanks and Regards..
Virendra chauhan

Answer 1

I think multi-level collections was first implemented in 9.2. You failed to mention what version of the DB you are using.