Creating internal table dynamicaly at runtime

[Former Member]

Hi Experts,

I want to create one internal table dynamically without using FIELD SYMBOL concept.

I have main internal table from that i need to take some fields and create one more internal table at runtime. please help me .......please send if u have any logic.

Thanks and

[Former Member]

Hi,

Look at the below links, which will give the example code

http://www.sap-img.com/ab030.htm

http://searchsap.techtarget.com/tip/0,289483,sid21_gci554038,00.html

Regards

Sudheer

[Former Member]

Hi,

Please check the link below :

<a href="https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/dynamicInternalTable&">https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/dynamicInternalTable&</a>

[Former Member]

Hi Pavan,

if you want to declare internal Tables dynamically you need a field symbol,

why don't you want to use field-symbols ?

DATA: ref_it_md TYPE REF TO data.

FIELD-SYMBOLS: <fs_it_mddata> TYPE ANY TABLE.

FIELD-SYMBOLS: <fs_wa_mddata> TYPE ANY.

parameters: p_tabnm like dd03l-tabname.

CREATE DATA ref_it_md TYPE STANDARD TABLE OF (tabname)

WITH DEFAULT KEY.

ASSIGN ref_it_md->* TO <fs_it_mddata>.

Kind Regards

Henner

[Former Member]

Hi,

Please have a look at the method create_dynamic_table of class cl_alv_table_create. Here you can to determine the line type of the internal table dynamically by constructing a field catalog with the dynamically defined fields.

Also you can use the Run time type services RTTS to create strcutures , tables

etc dynamically in programs. The class CL_ABAPTABLEDESCR is used to create dynamic tables in the programs.

Reward if helpful.

Regards,

Harini.S

[Former Member]

Hi,

Yes , you can create a Dynamic Internal table .Just chek out this program .

type-pools : abap.

field-symbols: <dyn_table> type standard table,

<dyn_wa>,

<dyn_field>.

data: dy_table type ref to data,

dy_line type ref to data,

xfc type lvc_s_fcat,

ifc type lvc_t_fcat.

selection-screen begin of block b1 with frame.

parameters: p_table(30) type c default 'T001'.

selection-screen end of block b1.

start-of-selection.

perform get_structure.

perform create_dynamic_itab. *********Creates a dyanamic internal table*********

perform get_data.

perform write_out.

form get_structure.

data : idetails type abap_compdescr_tab,

xdetails type abap_compdescr.

data : ref_table_des type ref to cl_abap_structdescr.

• Get the structure of the table.

ref_table_des ?=

cl_abap_typedescr=>describe_by_name( p_table ).

idetails[] = ref_table_des->components[].

loop at idetails into xdetails.

clear xfc.

xfc-fieldname = xdetails-name .

xfc-datatype = xdetails-type_kind.

xfc-inttype = xdetails-type_kind.

xfc-intlen = xdetails-length.

xfc-decimals = xdetails-decimals.

append xfc to ifc.

endloop.

endform.

form create_dynamic_itab.

• Create dynamic internal table and assign to FS

call method cl_alv_table_create=>create_dynamic_table

exporting

it_fieldcatalog = ifc

importing

ep_table = dy_table.

assign dy_table->* to <dyn_table>.

• Create dynamic work area and assign to FS

create data dy_line like line of <dyn_table>.

assign dy_line->* to <dyn_wa>.

endform.

form get_data.

• Select Data from table.

select * into table <dyn_table>

from (p_table).

endform.

Write out data from table.

loop at <dyn_table> into <dyn_wa>.

do.

assign component sy-index

of structure <dyn_wa> to <dyn_field>.

if sy-subrc <> 0.

exit.

endif.

if sy-index = 1.

write:/ <dyn_field>.

else.

write: <dyn_field>.

endif.

enddo.

endloop.

Regards,

Bhaskar