ABAP Select data from SAP table REHODBAND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REHODBAND
*  INTO TABLE @DATA(IT_REHODBAND2).
*--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_REHODBAND INDEX 1 INTO DATA(WA_REHODBAND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REHODBAND>-SWENR = 1.
<REHODBAND>-SMENR = 1.
<REHODBAND>-RECNNR = 1.
<REHODBAND>-ERRTEXT = 1.
<REHODBAND>-MWSKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REHODBAND-DELTAZR, sy-vline,
  WA_REHODBAND-ABRGKOST, sy-vline,
  WA_REHODBAND-ABRGZAHL, sy-vline,
  WA_REHODBAND-ABRSALDO, sy-vline,
  WA_REHODBAND-ABRUMLWBTR, sy-vline,
  WA_REHODBAND-ABRMWSTBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REHODBAND 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_REHODBAND 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_REHODBAND INTO WA_REHODBAND.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_REHODBAND-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHODBAND-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_REHODBAND-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHODBAND-SMENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REHODBAND-RECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHODBAND-RECNNR.
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_REHODBAND_STR, 
SWENR TYPE STRING,
SMENR TYPE STRING,
RECNNR TYPE STRING,
ERRTEXT TYPE STRING,
MWSKZ TYPE STRING,
DELTAZR TYPE STRING,
ABRGKOST TYPE STRING,
ABRGZAHL TYPE STRING,
ABRSALDO TYPE STRING,
ABRUMLWBTR TYPE STRING,
ABRMWSTBTR TYPE STRING,
ABRNZAHL TYPE STRING,
ABRNDAT TYPE STRING,
SWHRKOND TYPE STRING,
REC_TYP TYPE STRING,
STECHEM TYPE STRING,
ABRKDNR TYPE STRING,
ABNNR TYPE STRING,
ABRABND TYPE STRING,
ABRRES4 TYPE STRING,
ABRRES3 TYPE STRING,
RZNR TYPE STRING,
A1KONST TYPE STRING,
MANDT TYPE STRING,
DBANDID TYPE STRING,
DLFDNR TYPE STRING,
MARK TYPE STRING,
DABRECH TYPE STRING,
VVABBLN TYPE STRING,
DSTORNO TYPE STRING,
SHEIZZ TYPE STRING,
INTRENOME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REHODBAND_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_REHODBAND_STR-SWENR sy-vline 
WA_REHODBAND_STR-SMENR sy-vline 
WA_REHODBAND_STR-RECNNR sy-vline 
WA_REHODBAND_STR-ERRTEXT sy-vline 
WA_REHODBAND_STR-MWSKZ sy-vline 
WA_REHODBAND_STR-DELTAZR sy-vline 
WA_REHODBAND_STR-ABRGKOST sy-vline 
WA_REHODBAND_STR-ABRGZAHL sy-vline 
WA_REHODBAND_STR-ABRSALDO sy-vline 
WA_REHODBAND_STR-ABRUMLWBTR sy-vline 
WA_REHODBAND_STR-ABRMWSTBTR sy-vline 
WA_REHODBAND_STR-ABRNZAHL sy-vline 
WA_REHODBAND_STR-ABRNDAT sy-vline 
WA_REHODBAND_STR-SWHRKOND sy-vline 
WA_REHODBAND_STR-REC_TYP sy-vline 
WA_REHODBAND_STR-STECHEM sy-vline 
WA_REHODBAND_STR-ABRKDNR sy-vline 
WA_REHODBAND_STR-ABNNR sy-vline 
WA_REHODBAND_STR-ABRABND sy-vline 
WA_REHODBAND_STR-ABRRES4 sy-vline 
WA_REHODBAND_STR-ABRRES3 sy-vline 
WA_REHODBAND_STR-RZNR sy-vline 
WA_REHODBAND_STR-A1KONST sy-vline 
WA_REHODBAND_STR-MANDT sy-vline 
WA_REHODBAND_STR-DBANDID sy-vline 
WA_REHODBAND_STR-DLFDNR sy-vline 
WA_REHODBAND_STR-MARK sy-vline 
WA_REHODBAND_STR-DABRECH sy-vline 
WA_REHODBAND_STR-VVABBLN sy-vline 
WA_REHODBAND_STR-DSTORNO sy-vline 
WA_REHODBAND_STR-SHEIZZ sy-vline 
WA_REHODBAND_STR-INTRENOME sy-vline      INTO ld_text SEPARATED BY SPACE.

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