topic Re: Getting internal table definition in Application Development and Automation Discussions

Getting internal table definition

marcin_cholewczuk — Fri, 31 Jul 2009 09:13:59 GMT

Hi all,

Let's say that I've defined internal table based on internal type (not in dictionary). Does anybody know if there is some FM that could return to me definition of that table (how many fields, their types and so on). For dictionary based type there is a lot of these FM starting with "DD*". Is there anything like that for internal tables?

Marcin

Re: Getting internal table definition

Former Member — Fri, 31 Jul 2009 09:21:06 GMT

Hi,

To get the internal table attributes you can try using DESCRIBE TABLE statement.

Regards,

Vik

Re: Getting internal table definition

marcin_cholewczuk — Fri, 31 Jul 2009 09:23:24 GMT

DESCRIBE TABLE returns

- number of entries in table or

- value next to OCCURS from definition or

- table type (standard, sorted, hashed....)

I think it's not possible to use it for my purposes.

Re: Getting internal table definition

Former Member — Fri, 31 Jul 2009 09:23:31 GMT

Hi,

Try this...

DATA : l_descr_ref TYPE REF TO cl_abap_structdescr.

l_descr_ref ?= cl_abap_typedescr=>describe_by_data( itab ).

Now l_descr_ref->components holds the entire list of fields in itab.

Thanks,

Renjith.

Re: Getting internal table definition

marcin_cholewczuk — Fri, 31 Jul 2009 09:25:53 GMT

This is exacly what I wanted. Thanks Renjith

Re: Getting internal table definition

Former Member — Fri, 31 Jul 2009 09:42:09 GMT

Hi Renjith,

> DATA : l_descr_ref TYPE REF TO cl_abap_structdescr.

> l_descr_ref ?= cl_abap_typedescr=>describe_by_data( itab ).

this will cause a MOVE_CAST_ERROR!

Regards

REA

Edited by: Ramy EL-ARNAOUTY on Jul 31, 2009 11:42 AM