Copy an internal table

[Former Member]

I want to copy an internal table of a type defined in the ABAP program itself, not dictionary. I have a function that is supposed to accept the internal table as a parameter of type 'any table'. The function should create the new internal table using the field catalog of the passed 'any table' and then create a new internal table using "create_dynamic_table" and return the DATA pointer.

If anyone knows how it is done pls help me out.

[Former Member]

I have tried. If u can pls do post the code to retrieve the field catalog of an internal table using the function u suggest...

I am writing the internal table code below.

TYPES:

BEGIN OF MYTYPE,

NAME TYPE SOMEZTABLE-NAME,

AGE TYPE SOMEZTABLE-AGE,

END OF MYTYPE.

DATA:

IT_TABLE TYPE TABLE OF MYTABLE INITIAL SIZE 0.

CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'

EXPORTING

I_INTERNAL_TABNAME = 'it_table'

CHANGING

ct_fieldcat = lt_alv_cat[].

I have declared the lt_alv_cat as reqd.

It says 'Field catalog does not exist'

[Former Member]

Ravi,

Look at this weblog.

/people/ravikumar.allampallam/blog/2005/05/31/expand-the-list-of-columns-in-a-report-dynamically

regards,

Ravi

[Former Member]

Hi ravi,

I have tried LVC_FIELDCATALOG_MERGE but i get a message saying 'Field catalog not found'...

[Former Member]

Ravi,

You use the function module to create a field catalog, if you have structure or a internal table. How are you creating your field catalog?

Not sure if you have looked at the Object Model of ALV, there will not be any need for a field catalog.

If you can, paste the code here, or send it to my mail id in the business card.

regards,

Ravi

Message was edited by: Ravikumar Allampallam

[Former Member]

I have tried. If u can pls do post the code to retrieve the field catalog of an internal table using the function u suggest...

I am writing the internal table code below.

TYPES:

BEGIN OF MYTYPE,

NAME TYPE SOMEZTABLE-NAME,

AGE TYPE SOMEZTABLE-AGE,

END OF MYTYPE.

DATA:

IT_TABLE TYPE TABLE OF MYTABLE INITIAL SIZE 0.

CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'

EXPORTING

I_INTERNAL_TABNAME = 'it_table'

CHANGING

ct_fieldcat = lt_alv_cat[].

I have declared the lt_alv_cat as reqd.

It says 'Field catalog does not exist'

[Former Member]

Ravi,

Can you try declaring the table directly rather than through the types? I think it will work then.

Regards,

Ravi

[sreekanthgo]

Hi Ravi,

You need to declare internal table with out using types if you want to use the 'LVC_FIELDCATALOG_MERGE' function module.

You can populate the Filed catalog with out using the above function module, if you want to declare your internal table with types.

I think there is no specific reason for this.

Thanks,

Sreekanth