ABAP Select data from SAP table RF10B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RF10B 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 RF10B. 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 RF10B 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_RF10B TYPE STANDARD TABLE OF RF10B,
      WA_RF10B TYPE RF10B,
      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: <RF10B> TYPE RF10B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RF10B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RF10B
  INTO TABLE IT_RF10B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RF10B
*  INTO TABLE @DATA(IT_RF10B2).
*--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_RF10B INDEX 1 INTO DATA(WA_RF10B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RF10B ASSIGNING <RF10B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RF10B>-DOCTY = 1.
<RF10B>-RLDNR = 1.
<RF10B>-RVERS = 1.
<RF10B>-WK_REF = 1.
<RF10B>-DOCNR = 1.

ENDLOOP.

LOOP AT IT_RF10B INTO WA_RF10B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RF10B-REFSTO, sy-vline,
  WA_RF10B-RYEAR, sy-vline,
  WA_RF10B-RSUBD, sy-vline,
  WA_RF10B-PERID, sy-vline,
  WA_RF10B-RTCUR, sy-vline,
  WA_RF10B-RUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RF10B 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_RF10B 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_RF10B INTO WA_RF10B.


*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 DOCTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-DOCTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-DOCTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-DOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RASSC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RASSC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RASSC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFRC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-REFRC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-REFRC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-RITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-RITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFRA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF10B-REFRA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF10B-REFRA.
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_RF10B_STR, 
DOCTY TYPE STRING,
RLDNR TYPE STRING,
RVERS TYPE STRING,
WK_REF TYPE STRING,
DOCNR TYPE STRING,
REFSTO TYPE STRING,
RYEAR TYPE STRING,
RSUBD TYPE STRING,
PERID TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
RCOMP TYPE STRING,
COMPNAME TYPE STRING,
RASSC TYPE STRING,
PARTNERNAM TYPE STRING,
GRCURR TYPE STRING,
DOCLN TYPE STRING,
REFRC TYPE STRING,
RITEM TYPE STRING,
RMVCT TYPE STRING,
REFRA TYPE STRING,
VTCUR TYPE STRING,
TEXT TYPE STRING,
SALDOS TYPE STRING,
SALDOH TYPE STRING,
SALDO TYPE STRING,
ZEILE TYPE STRING,
VGCUR TYPE STRING,
VLCUR TYPE STRING,
DATUM TYPE STRING,
ZEIT TYPE STRING,
AUTOM TYPE STRING,
SALDO_CURR TYPE STRING,
CURR_RCOMP TYPE STRING,
DISPVAL1 TYPE STRING,
DISPVAL2 TYPE STRING,
DISPCUR1 TYPE STRING,
DISPCUR2 TYPE STRING,
ADFLD1 TYPE STRING,
ADFLD2 TYPE STRING,
ADFLD3 TYPE STRING,
QUANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RF10B_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_RF10B_STR-DOCTY sy-vline 
WA_RF10B_STR-RLDNR sy-vline 
WA_RF10B_STR-RVERS sy-vline 
WA_RF10B_STR-WK_REF sy-vline 
WA_RF10B_STR-DOCNR sy-vline 
WA_RF10B_STR-REFSTO sy-vline 
WA_RF10B_STR-RYEAR sy-vline 
WA_RF10B_STR-RSUBD sy-vline 
WA_RF10B_STR-PERID sy-vline 
WA_RF10B_STR-RTCUR sy-vline 
WA_RF10B_STR-RUNIT sy-vline 
WA_RF10B_STR-RCOMP sy-vline 
WA_RF10B_STR-COMPNAME sy-vline 
WA_RF10B_STR-RASSC sy-vline 
WA_RF10B_STR-PARTNERNAM sy-vline 
WA_RF10B_STR-GRCURR sy-vline 
WA_RF10B_STR-DOCLN sy-vline 
WA_RF10B_STR-REFRC sy-vline 
WA_RF10B_STR-RITEM sy-vline 
WA_RF10B_STR-RMVCT sy-vline 
WA_RF10B_STR-REFRA sy-vline 
WA_RF10B_STR-VTCUR sy-vline 
WA_RF10B_STR-TEXT sy-vline 
WA_RF10B_STR-SALDOS sy-vline 
WA_RF10B_STR-SALDOH sy-vline 
WA_RF10B_STR-SALDO sy-vline 
WA_RF10B_STR-ZEILE sy-vline 
WA_RF10B_STR-VGCUR sy-vline 
WA_RF10B_STR-VLCUR sy-vline 
WA_RF10B_STR-DATUM sy-vline 
WA_RF10B_STR-ZEIT sy-vline 
WA_RF10B_STR-AUTOM sy-vline 
WA_RF10B_STR-SALDO_CURR sy-vline 
WA_RF10B_STR-CURR_RCOMP sy-vline 
WA_RF10B_STR-DISPVAL1 sy-vline 
WA_RF10B_STR-DISPVAL2 sy-vline 
WA_RF10B_STR-DISPCUR1 sy-vline 
WA_RF10B_STR-DISPCUR2 sy-vline 
WA_RF10B_STR-ADFLD1 sy-vline 
WA_RF10B_STR-ADFLD2 sy-vline 
WA_RF10B_STR-ADFLD3 sy-vline 
WA_RF10B_STR-QUANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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