ABAP Select data from SAP table RJGF02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJGF02 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 RJGF02. 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 RJGF02 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_RJGF02 TYPE STANDARD TABLE OF RJGF02,
      WA_RJGF02 TYPE RJGF02,
      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: <RJGF02> TYPE RJGF02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJGF02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJGF02
  INTO TABLE IT_RJGF02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJGF02
*  INTO TABLE @DATA(IT_RJGF022).
*--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_RJGF02 INDEX 1 INTO DATA(WA_RJGF022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJGF02 ASSIGNING <RJGF02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJGF02>-KTOKDF = 1.
<RJGF02>-BANKS = 1.
<RJGF02>-BANKA = 1.
<RJGF02>-BANKL = 1.
<RJGF02>-BANKN = 1.

ENDLOOP.

LOOP AT IT_RJGF02 INTO WA_RJGF02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJGF02-BKONT, sy-vline,
  WA_RJGF02-BVTYP, sy-vline,
  WA_RJGF02-XEZER, sy-vline,
  WA_RJGF02-BKREF, sy-vline,
  WA_RJGF02-XPGRO, sy-vline,
  WA_RJGF02-STCEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJGF02 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_RJGF02 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_RJGF02 INTO WA_RJGF02.


*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.

*Conversion exit ALPHA, internal->external for field FISKN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJGF02-FISKN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJGF02-FISKN.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_RJGF02_STR, 
KTOKDF TYPE STRING,
BANKS TYPE STRING,
BANKA TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
BVTYP TYPE STRING,
XEZER TYPE STRING,
BKREF TYPE STRING,
XPGRO TYPE STRING,
STCEG TYPE STRING,
TOGRU TYPE STRING,
ATLKN TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
FISKN TYPE STRING,
STKZA TYPE STRING,
STKZU TYPE STRING,
BRAN1 TYPE STRING,
BRAN2 TYPE STRING,
BRAN3 TYPE STRING,
BRAN4 TYPE STRING,
BRAN5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJGF02_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_RJGF02_STR-KTOKDF sy-vline 
WA_RJGF02_STR-BANKS sy-vline 
WA_RJGF02_STR-BANKA sy-vline 
WA_RJGF02_STR-BANKL sy-vline 
WA_RJGF02_STR-BANKN sy-vline 
WA_RJGF02_STR-BKONT sy-vline 
WA_RJGF02_STR-BVTYP sy-vline 
WA_RJGF02_STR-XEZER sy-vline 
WA_RJGF02_STR-BKREF sy-vline 
WA_RJGF02_STR-XPGRO sy-vline 
WA_RJGF02_STR-STCEG sy-vline 
WA_RJGF02_STR-TOGRU sy-vline 
WA_RJGF02_STR-ATLKN sy-vline 
WA_RJGF02_STR-STCD1 sy-vline 
WA_RJGF02_STR-STCD2 sy-vline 
WA_RJGF02_STR-FISKN sy-vline 
WA_RJGF02_STR-STKZA sy-vline 
WA_RJGF02_STR-STKZU sy-vline 
WA_RJGF02_STR-BRAN1 sy-vline 
WA_RJGF02_STR-BRAN2 sy-vline 
WA_RJGF02_STR-BRAN3 sy-vline 
WA_RJGF02_STR-BRAN4 sy-vline 
WA_RJGF02_STR-BRAN5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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