Dynamic Internal table

[Former Member]

Hi,I need to create a dynamic internal table with 3 fixed coloumns and remaining columns are dynamic are in date format.These columns will depend upon the selection of dates at selection-screen.

I have searched SDN throughly but I could not get those example programs for dynamic ALV.Can anyone PLZ PLZ explain how to achive this and if anyone giving example PLZ explain every part of the program.

Thanks in advance.

[Former Member]

Just go thru this you will come to know how to create...

Dynamic Internal Table

By Vijayanand Poreddy

This Tutorial details about creation of dynamic internal table with different scenarios

Internal Tables are local tables within a program containing a series of lines having same data type. ABAPTM Open SQL allows single field, range of fields, entire database table or view into an internal table.

In technical terms Internal table is a dynamic sequential dataset in which all records have the same data structure and a key.

A static internal table can be declared in an ABAPTM program initially, when the structure of the internal table is fixed and known to the user.

Dynamic internal table is an extension to internal table concept, used when the number of fields is not known at the design time or until the compile time.

Scenario 1:

Display the table of contents in grid format using the dynamic internal table.

Creating Dynamic internal table

PARAMETERS : p_table(10) TYPE C.

DATA: w_tabname TYPE w_tabname,

w_dref TYPE REF TO data,

w_grid TYPE REF TO cl_gui_alv_grid.

FIELD-SYMBOLS: <t_itab> TYPE ANY TABLE.

w_tabname = p_table.

CREATE DATA w_dref TYPE TABLE OF (w_tabname).

ASSIGN w_dref->* TO <t_itab>.

Populating Dynamic internal table

SELECT *

FROM (w_tabname) UP TO 20 ROWS

INTO TABLE <t_itab>.

Displaying dynamic internal table using Grid.

CREATE OBJECT w_grid

EXPORTING i_parent = cl_gui_container=>screen0.

CALL METHOD w_grid->set_table_for_first_display

EXPORTING

i_structure_name = w_tabname

CHANGING

it_outtab = <t_itab>.

CALL SCREEN 100.

Scenario 2:

Create a dynamic internal table with the specified number of columns.

Creating Dynamic internal table

TYPE-POOLS: slis.

FIELD-SYMBOLS: <t_dyntable> TYPE STANDARD TABLE, u201C Dynamic internal table name

<fs_dyntable>, u201C Field symbol to create work area

<fs_fldval> type any. u201C Field symbol to assign values

PARAMETERS: p_cols(5) TYPE c. u201C Input number of columns

DATA: t_newtable TYPE REF TO data,

t_newline TYPE REF TO data,

t_fldcat TYPE slis_t_fldcat_alv,

t_fldcat TYPE lvc_t_fcat,

wa_it_fldcat TYPE lvc_s_fcat,

wa_colno(2) TYPE n,

wa_flname(5) TYPE c.

• Create fields .

DO p_cols TIMES.

CLEAR wa_it_fldcat.

move sy-index to wa_colno.

concatenate 'COL'

wa_colno

into wa_flname.

wa_it_fldcat-fieldname = wa_flname.

wa_it_fldcat-datatype = 'CHAR'.

wa_it_fldcat-intlen = 10.

APPEND wa_it_fldcat TO t_fldcat.

ENDDO.

• Create dynamic internal table and assign to FS

CALL METHOD cl_alv_table_create=>create_dynamic_table

EXPORTING

it_fieldcatalog = t_fldcat

IMPORTING

ep_table = t_newtable.

ASSIGN t_newtable->* TO <t_dyntable>.

• Create dynamic work area and assign to FS

CREATE DATA t_newline LIKE LINE OF <t_dyntable>.

ASSIGN t_newline->* TO <fs_dyntable>.

Populating Dynamic internal table

DATA: fieldname(20) TYPE c.

DATA: fieldvalue(10) TYPE c.

DATA: index(3) TYPE c.

DO p_cols TIMES.

index = sy-index.

MOVE sy-index TO wa_colno.

CONCATENATE 'COL'

wa_colno

INTO wa_flname.

• Set up fieldvalue

CONCATENATE 'VALUE' index INTO

fieldvalue.

CONDENSE fieldvalue NO-GAPS.

ASSIGN COMPONENT wa_flname

OF STRUCTURE <fs_dyntable> TO <fs_fldval>.

<fs_fldval> = fieldvalue.

ENDDO.

• Append to the dynamic internal table

APPEND <fs_dyntable> TO <t_dyntable>.

Displaying dynamic internal table using Grid.

DATA: wa_cat LIKE LINE OF fs_fldcat.

DO p_cols TIMES.

CLEAR wa_cat.

MOVE sy-index TO wa_colno.

CONCATENATE 'COL'

wa_colno

INTO wa_flname.

wa_cat-fieldname = wa_flname.

wa_cat-seltext_s = wa_flname.

wa_cat-outputlen = '10'.

APPEND wa_cat TO fs_fldcat.

ENDDO.

• Call ABAP List Viewer (ALV)

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

it_fieldcat = fs_fldcat

TABLES

t_outtab = <t_dyntable>.

[Former Member]

Thanks,but I read this tutorial 10 times already but could not get it,can u create a simple program to the requirement I have given.

Thanks in advance.