ABAP Select data from SAP table P01A_BW_S_BALLA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01A_BW_S_BALLA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to P01A_BW_S_BALLA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the P01A_BW_S_BALLA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_P01A_BW_S_BALLA TYPE STANDARD TABLE OF P01A_BW_S_BALLA,
      WA_P01A_BW_S_BALLA TYPE P01A_BW_S_BALLA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <P01A_BW_S_BALLA> TYPE P01A_BW_S_BALLA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01A_BW_S_BALLA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01A_BW_S_BALLA
  INTO TABLE IT_P01A_BW_S_BALLA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01A_BW_S_BALLA
*  INTO TABLE @DATA(IT_P01A_BW_S_BALLA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_P01A_BW_S_BALLA INDEX 1 INTO DATA(WA_P01A_BW_S_BALLA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01A_BW_S_BALLA ASSIGNING <P01A_BW_S_BALLA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01A_BW_S_BALLA>-LTTYP = 1.
<P01A_BW_S_BALLA>-LTRGR = 1.
<P01A_BW_S_BALLA>-ANGRP = 1.
<P01A_BW_S_BALLA>-HANSP = 1.
<P01A_BW_S_BALLA>-AANSP = 1.

ENDLOOP.

LOOP AT IT_P01A_BW_S_BALLA INTO WA_P01A_BW_S_BALLA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01A_BW_S_BALLA-MODBV, sy-vline,
  WA_P01A_BW_S_BALLA-ANTYP, sy-vline,
  WA_P01A_BW_S_BALLA-ANSPR, sy-vline,
  WA_P01A_BW_S_BALLA-KZABL, sy-vline,
  WA_P01A_BW_S_BALLA-LGART, sy-vline,
  WA_P01A_BW_S_BALLA-RNTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01A_BW_S_BALLA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_P01A_BW_S_BALLA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_P01A_BW_S_BALLA INTO WA_P01A_BW_S_BALLA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P01A_BW_S_BALLA_STR, 
LTTYP TYPE STRING,
LTRGR TYPE STRING,
ANGRP TYPE STRING,
HANSP TYPE STRING,
AANSP TYPE STRING,
MODBV TYPE STRING,
ANTYP TYPE STRING,
ANSPR TYPE STRING,
KZABL TYPE STRING,
LGART TYPE STRING,
RNTYP TYPE STRING,
LSTTR TYPE STRING,
LURSP TYPE STRING,
HBKRZ TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
DZTJJ TYPE STRING,
APDAT TYPE STRING,
KZZWM TYPE STRING,
KZZUZ TYPE STRING,
ERBLB TYPE STRING,
HBLB1 TYPE STRING,
HBLB2 TYPE STRING,
HBLB3 TYPE STRING,
SHBL1 TYPE STRING,
SHBL2 TYPE STRING,
SHBL3 TYPE STRING,
SH123 TYPE STRING,
HTYP1 TYPE STRING,
HTYP2 TYPE STRING,
HTYP3 TYPE STRING,
KZPR1 TYPE STRING,
KZPR2 TYPE STRING,
KZPR3 TYPE STRING,
FRBLG TYPE STRING,
GNADE TYPE STRING,
PERDI TYPE STRING,
HTDIF TYPE STRING,
DIFFB TYPE STRING,
PRODU TYPE STRING,
NUMHB TYPE STRING,
UBETR TYPE STRING,
FRBIT TYPE STRING,
BEDIF TYPE STRING,
ENDIF TYPE STRING,
LTTYP_TEXT TYPE STRING,
LTRGR_TEXT TYPE STRING,
ANGRP_TEXT TYPE STRING,
HANSP_TEXT TYPE STRING,
AANSP_TEXT TYPE STRING,
LGART_TEXT TYPE STRING,
LURSP_TEXT TYPE STRING,
FRBLG_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01A_BW_S_BALLA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_P01A_BW_S_BALLA_STR-LTTYP sy-vline 
WA_P01A_BW_S_BALLA_STR-LTRGR sy-vline 
WA_P01A_BW_S_BALLA_STR-ANGRP sy-vline 
WA_P01A_BW_S_BALLA_STR-HANSP sy-vline 
WA_P01A_BW_S_BALLA_STR-AANSP sy-vline 
WA_P01A_BW_S_BALLA_STR-MODBV sy-vline 
WA_P01A_BW_S_BALLA_STR-ANTYP sy-vline 
WA_P01A_BW_S_BALLA_STR-ANSPR sy-vline 
WA_P01A_BW_S_BALLA_STR-KZABL sy-vline 
WA_P01A_BW_S_BALLA_STR-LGART sy-vline 
WA_P01A_BW_S_BALLA_STR-RNTYP sy-vline 
WA_P01A_BW_S_BALLA_STR-LSTTR sy-vline 
WA_P01A_BW_S_BALLA_STR-LURSP sy-vline 
WA_P01A_BW_S_BALLA_STR-HBKRZ sy-vline 
WA_P01A_BW_S_BALLA_STR-BEGDA sy-vline 
WA_P01A_BW_S_BALLA_STR-ENDDA sy-vline 
WA_P01A_BW_S_BALLA_STR-DZTJJ sy-vline 
WA_P01A_BW_S_BALLA_STR-APDAT sy-vline 
WA_P01A_BW_S_BALLA_STR-KZZWM sy-vline 
WA_P01A_BW_S_BALLA_STR-KZZUZ sy-vline 
WA_P01A_BW_S_BALLA_STR-ERBLB sy-vline 
WA_P01A_BW_S_BALLA_STR-HBLB1 sy-vline 
WA_P01A_BW_S_BALLA_STR-HBLB2 sy-vline 
WA_P01A_BW_S_BALLA_STR-HBLB3 sy-vline 
WA_P01A_BW_S_BALLA_STR-SHBL1 sy-vline 
WA_P01A_BW_S_BALLA_STR-SHBL2 sy-vline 
WA_P01A_BW_S_BALLA_STR-SHBL3 sy-vline 
WA_P01A_BW_S_BALLA_STR-SH123 sy-vline 
WA_P01A_BW_S_BALLA_STR-HTYP1 sy-vline 
WA_P01A_BW_S_BALLA_STR-HTYP2 sy-vline 
WA_P01A_BW_S_BALLA_STR-HTYP3 sy-vline 
WA_P01A_BW_S_BALLA_STR-KZPR1 sy-vline 
WA_P01A_BW_S_BALLA_STR-KZPR2 sy-vline 
WA_P01A_BW_S_BALLA_STR-KZPR3 sy-vline 
WA_P01A_BW_S_BALLA_STR-FRBLG sy-vline 
WA_P01A_BW_S_BALLA_STR-GNADE sy-vline 
WA_P01A_BW_S_BALLA_STR-PERDI sy-vline 
WA_P01A_BW_S_BALLA_STR-HTDIF sy-vline 
WA_P01A_BW_S_BALLA_STR-DIFFB sy-vline 
WA_P01A_BW_S_BALLA_STR-PRODU sy-vline 
WA_P01A_BW_S_BALLA_STR-NUMHB sy-vline 
WA_P01A_BW_S_BALLA_STR-UBETR sy-vline 
WA_P01A_BW_S_BALLA_STR-FRBIT sy-vline 
WA_P01A_BW_S_BALLA_STR-BEDIF sy-vline 
WA_P01A_BW_S_BALLA_STR-ENDIF sy-vline 
WA_P01A_BW_S_BALLA_STR-LTTYP_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-LTRGR_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-ANGRP_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-HANSP_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-AANSP_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-LGART_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-LURSP_TEXT sy-vline 
WA_P01A_BW_S_BALLA_STR-FRBLG_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.