ABAP Select data from SAP table RF02B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RF02B 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 RF02B. 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 RF02B 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_RF02B TYPE STANDARD TABLE OF RF02B,
      WA_RF02B TYPE RF02B,
      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: <RF02B> TYPE RF02B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RF02B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RF02B
  INTO TABLE IT_RF02B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RF02B
*  INTO TABLE @DATA(IT_RF02B2).
*--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_RF02B INDEX 1 INTO DATA(WA_RF02B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RF02B ASSIGNING <RF02B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RF02B>-BANKS = 1.
<RF02B>-BANKL = 1.
<RF02B>-BANKN = 1.
<RF02B>-BKONT = 1.
<RF02B>-BANKA = 1.

ENDLOOP.

LOOP AT IT_RF02B INTO WA_RF02B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RF02B-ORT01, sy-vline,
  WA_RF02B-SWIFT, sy-vline,
  WA_RF02B-BRNCH, sy-vline,
  WA_RF02B-BNKLZ, sy-vline,
  WA_RF02B-STRAS, sy-vline,
  WA_RF02B-TMP_NUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RF02B 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_RF02B 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_RF02B INTO WA_RF02B.


*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_RF02B_STR, 
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
BANKA TYPE STRING,
ORT01 TYPE STRING,
SWIFT TYPE STRING,
BRNCH TYPE STRING,
BNKLZ TYPE STRING,
STRAS TYPE STRING,
TMP_NUMBER TYPE STRING,
XECHT TYPE STRING,
XTEST TYPE STRING,
XTEST1 TYPE STRING,
FELDT TYPE STRING,
FLD20 TYPE STRING,
FLD35 TYPE STRING,
TEXT1 TYPE STRING,
BANKDSN1 TYPE STRING,
BANKDSN2 TYPE STRING,
BANKXEOR TYPE STRING,
BANKXDIS TYPE STRING,
BANKXFPR TYPE STRING,
BANKLOEV TYPE STRING,
BANKXDET TYPE STRING,
BANKXFAP TYPE STRING,
BANKVERS TYPE STRING,
BKABSORT TYPE STRING,
BKABXTEC TYPE STRING,
BKABXDSC TYPE STRING,
COUNTER TYPE STRING,
BKVZANSC TYPE STRING,
BKVZSTEU TYPE STRING,
BKVZVERW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RF02B_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_RF02B_STR-BANKS sy-vline 
WA_RF02B_STR-BANKL sy-vline 
WA_RF02B_STR-BANKN sy-vline 
WA_RF02B_STR-BKONT sy-vline 
WA_RF02B_STR-BANKA sy-vline 
WA_RF02B_STR-ORT01 sy-vline 
WA_RF02B_STR-SWIFT sy-vline 
WA_RF02B_STR-BRNCH sy-vline 
WA_RF02B_STR-BNKLZ sy-vline 
WA_RF02B_STR-STRAS sy-vline 
WA_RF02B_STR-TMP_NUMBER sy-vline 
WA_RF02B_STR-XECHT sy-vline 
WA_RF02B_STR-XTEST sy-vline 
WA_RF02B_STR-XTEST1 sy-vline 
WA_RF02B_STR-FELDT sy-vline 
WA_RF02B_STR-FLD20 sy-vline 
WA_RF02B_STR-FLD35 sy-vline 
WA_RF02B_STR-TEXT1 sy-vline 
WA_RF02B_STR-BANKDSN1 sy-vline 
WA_RF02B_STR-BANKDSN2 sy-vline 
WA_RF02B_STR-BANKXEOR sy-vline 
WA_RF02B_STR-BANKXDIS sy-vline 
WA_RF02B_STR-BANKXFPR sy-vline 
WA_RF02B_STR-BANKLOEV sy-vline 
WA_RF02B_STR-BANKXDET sy-vline 
WA_RF02B_STR-BANKXFAP sy-vline 
WA_RF02B_STR-BANKVERS sy-vline 
WA_RF02B_STR-BKABSORT sy-vline 
WA_RF02B_STR-BKABXTEC sy-vline 
WA_RF02B_STR-BKABXDSC sy-vline 
WA_RF02B_STR-COUNTER sy-vline 
WA_RF02B_STR-BKVZANSC sy-vline 
WA_RF02B_STR-BKVZSTEU sy-vline 
WA_RF02B_STR-BKVZVERW sy-vline      INTO ld_text SEPARATED BY SPACE.

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