ABAP Select data from SAP table R2BANF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP R2BANF 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 R2BANF. 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 R2BANF 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_R2BANF TYPE STANDARD TABLE OF R2BANF,
      WA_R2BANF TYPE R2BANF,
      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: <R2BANF> TYPE R2BANF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_R2BANF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM R2BANF
  INTO TABLE IT_R2BANF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM R2BANF
*  INTO TABLE @DATA(IT_R2BANF2).
*--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_R2BANF INDEX 1 INTO DATA(WA_R2BANF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_R2BANF ASSIGNING <R2BANF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<R2BANF>-MANDA = 1.
<R2BANF>-MAFID = 1.
<R2BANF>-BUKRS = 1.
<R2BANF>-WERKS = 1.
<R2BANF>-MATNR = 1.

ENDLOOP.

LOOP AT IT_R2BANF INTO WA_R2BANF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_R2BANF-BANFN, sy-vline,
  WA_R2BANF-BNFPO, sy-vline,
  WA_R2BANF-KNTPO, sy-vline,
  WA_R2BANF-BSART, sy-vline,
  WA_R2BANF-BSAKZ, sy-vline,
  WA_R2BANF-BSTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_R2BANF 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_R2BANF 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_R2BANF INTO WA_R2BANF.


*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_R2BANF_STR, 
MANDA TYPE STRING,
MAFID TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
KNTPO TYPE STRING,
BSART TYPE STRING,
BSAKZ TYPE STRING,
BSTAT TYPE STRING,
ESTKZ TYPE STRING,
FRGKZ TYPE STRING,
FRGZU TYPE STRING,
FRGST TYPE STRING,
AEDAT TYPE STRING,
BLOEK TYPE STRING,
SBNAM TYPE STRING,
AFNAM TYPE STRING,
LGORT TYPE STRING,
MATKL TYPE STRING,
EKGRP TYPE STRING,
DISPO TYPE STRING,
BEDNR TYPE STRING,
TXS01 TYPE STRING,
TXZ01 TYPE STRING,
TXS02 TYPE STRING,
LFDAT TYPE STRING,
DLFWO TYPE STRING,
FRGDT TYPE STRING,
BADAT TYPE STRING,
BAMNG TYPE STRING,
MEINS TYPE STRING,
PREIS TYPE STRING,
PEINH TYPE STRING,
BDDAT TYPE STRING,
BATOL TYPE STRING,
BVDRK TYPE STRING,
LIFNR TYPE STRING,
BVDAT TYPE STRING,
BUMNG TYPE STRING,
WEBAZ TYPE STRING,
PSTYP TYPE STRING,
WEPOS TYPE STRING,
REPOS TYPE STRING,
KFLAG TYPE STRING,
AUPOS TYPE STRING,
VRTKZ TYPE STRING,
TWRKZ TYPE STRING,
BSDAT TYPE STRING,
BBSTN TYPE STRING,
BSMNG TYPE STRING,
EBAKZ TYPE STRING,
FLIEF TYPE STRING,
KTKBU TYPE STRING,
KTKNR TYPE STRING,
KTPNR TYPE STRING,
KTMFD TYPE STRING,
INFNR TYPE STRING,
RESNR TYPE STRING,
RESBK TYPE STRING,
RESWK TYPE STRING,
BWTAR TYPE STRING,
GSBER TYPE STRING,
KZBRB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_R2BANF_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_R2BANF_STR-MANDA sy-vline 
WA_R2BANF_STR-MAFID sy-vline 
WA_R2BANF_STR-BUKRS sy-vline 
WA_R2BANF_STR-WERKS sy-vline 
WA_R2BANF_STR-MATNR sy-vline 
WA_R2BANF_STR-BANFN sy-vline 
WA_R2BANF_STR-BNFPO sy-vline 
WA_R2BANF_STR-KNTPO sy-vline 
WA_R2BANF_STR-BSART sy-vline 
WA_R2BANF_STR-BSAKZ sy-vline 
WA_R2BANF_STR-BSTAT sy-vline 
WA_R2BANF_STR-ESTKZ sy-vline 
WA_R2BANF_STR-FRGKZ sy-vline 
WA_R2BANF_STR-FRGZU sy-vline 
WA_R2BANF_STR-FRGST sy-vline 
WA_R2BANF_STR-AEDAT sy-vline 
WA_R2BANF_STR-BLOEK sy-vline 
WA_R2BANF_STR-SBNAM sy-vline 
WA_R2BANF_STR-AFNAM sy-vline 
WA_R2BANF_STR-LGORT sy-vline 
WA_R2BANF_STR-MATKL sy-vline 
WA_R2BANF_STR-EKGRP sy-vline 
WA_R2BANF_STR-DISPO sy-vline 
WA_R2BANF_STR-BEDNR sy-vline 
WA_R2BANF_STR-TXS01 sy-vline 
WA_R2BANF_STR-TXZ01 sy-vline 
WA_R2BANF_STR-TXS02 sy-vline 
WA_R2BANF_STR-LFDAT sy-vline 
WA_R2BANF_STR-DLFWO sy-vline 
WA_R2BANF_STR-FRGDT sy-vline 
WA_R2BANF_STR-BADAT sy-vline 
WA_R2BANF_STR-BAMNG sy-vline 
WA_R2BANF_STR-MEINS sy-vline 
WA_R2BANF_STR-PREIS sy-vline 
WA_R2BANF_STR-PEINH sy-vline 
WA_R2BANF_STR-BDDAT sy-vline 
WA_R2BANF_STR-BATOL sy-vline 
WA_R2BANF_STR-BVDRK sy-vline 
WA_R2BANF_STR-LIFNR sy-vline 
WA_R2BANF_STR-BVDAT sy-vline 
WA_R2BANF_STR-BUMNG sy-vline 
WA_R2BANF_STR-WEBAZ sy-vline 
WA_R2BANF_STR-PSTYP sy-vline 
WA_R2BANF_STR-WEPOS sy-vline 
WA_R2BANF_STR-REPOS sy-vline 
WA_R2BANF_STR-KFLAG sy-vline 
WA_R2BANF_STR-AUPOS sy-vline 
WA_R2BANF_STR-VRTKZ sy-vline 
WA_R2BANF_STR-TWRKZ sy-vline 
WA_R2BANF_STR-BSDAT sy-vline 
WA_R2BANF_STR-BBSTN sy-vline 
WA_R2BANF_STR-BSMNG sy-vline 
WA_R2BANF_STR-EBAKZ sy-vline 
WA_R2BANF_STR-FLIEF sy-vline 
WA_R2BANF_STR-KTKBU sy-vline 
WA_R2BANF_STR-KTKNR sy-vline 
WA_R2BANF_STR-KTPNR sy-vline 
WA_R2BANF_STR-KTMFD sy-vline 
WA_R2BANF_STR-INFNR sy-vline 
WA_R2BANF_STR-RESNR sy-vline 
WA_R2BANF_STR-RESBK sy-vline 
WA_R2BANF_STR-RESWK sy-vline 
WA_R2BANF_STR-BWTAR sy-vline 
WA_R2BANF_STR-GSBER sy-vline 
WA_R2BANF_STR-KZBRB sy-vline      INTO ld_text SEPARATED BY SPACE.

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