ABAP Select data from SAP table /BEV1/RBWE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV1/RBWE 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 /BEV1/RBWE. 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 /BEV1/RBWE 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_/BEV1/RBWE TYPE STANDARD TABLE OF /BEV1/RBWE,
      WA_/BEV1/RBWE TYPE /BEV1/RBWE,
      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: </BEV1/RBWE> TYPE /BEV1/RBWE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV1/RBWE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV1/RBWE
  INTO TABLE IT_/BEV1/RBWE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV1/RBWE
*  INTO TABLE @DATA(IT_/BEV1/RBWE2).
*--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_/BEV1/RBWE INDEX 1 INTO DATA(WA_/BEV1/RBWE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV1/RBWE ASSIGNING </BEV1/RBWE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV1/RBWE>-MANDT = 1.
</BEV1/RBWE>-KNUMH = 1.
</BEV1/RBWE>-KUNWE = 1.
</BEV1/RBWE>-MATNR = 1.
</BEV1/RBWE>-VBELN = 1.

ENDLOOP.

LOOP AT IT_/BEV1/RBWE INTO WA_/BEV1/RBWE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV1/RBWE-POSNR, sy-vline,
  WA_/BEV1/RBWE-BUTYP, sy-vline,
  WA_/BEV1/RBWE-SIMKEY, sy-vline,
  WA_/BEV1/RBWE-BONEM, sy-vline,
  WA_/BEV1/RBWE-VKORG, sy-vline,
  WA_/BEV1/RBWE-VTWEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV1/RBWE 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_/BEV1/RBWE 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_/BEV1/RBWE INTO WA_/BEV1/RBWE.


*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 KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BONEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-BONEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-BONEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNUMA_BO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-KNUMA_BO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-KNUMA_BO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BOMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-BOMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-BOMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KONMS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-KONMS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-KONMS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-AUBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-AUBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/RBWE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/RBWE-GJAHR.
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_/BEV1/RBWE_STR, 
MANDT TYPE STRING,
KNUMH TYPE STRING,
KUNWE TYPE STRING,
MATNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
BUTYP TYPE STRING,
SIMKEY TYPE STRING,
BONEM TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KNUMA_BO TYPE STRING,
KSCHL TYPE STRING,
VAKEY TYPE STRING,
KOPOS TYPE STRING,
BOART TYPE STRING,
BOMAT TYPE STRING,
KBETR TYPE STRING,
KONWA TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KUMZA TYPE STRING,
KUMNE TYPE STRING,
MEINS TYPE STRING,
KRECH TYPE STRING,
KWAEH TYPE STRING,
WAERS TYPE STRING,
STFKZ TYPE STRING,
KZBZG TYPE STRING,
KONMS TYPE STRING,
KONWS TYPE STRING,
KBRUE TYPE STRING,
BEGAB TYPE STRING,
ENDAB TYPE STRING,
FKDAT TYPE STRING,
KWERT TYPE STRING,
ZBONBA TYPE STRING,
ZMENG TYPE STRING,
KAWRT_A TYPE STRING,
KMENG_A TYPE STRING,
KSTBS_A TYPE STRING,
RUWRT_A TYPE STRING,
KWERT_A TYPE STRING,
KBETS TYPE STRING,
KSTBS TYPE STRING,
KSTBM TYPE STRING,
AUBEL TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
PERDE TYPE STRING,
FKART TYPE STRING,
HERKUNFT TYPE STRING,
ABRKZ TYPE STRING,
MODUS TYPE STRING,
STORKZ TYPE STRING,
ARCHKZ TYPE STRING,
ERNAM TYPE STRING,
ERZET TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEZET TYPE STRING,
AEDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV1/RBWE_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_/BEV1/RBWE_STR-MANDT sy-vline 
WA_/BEV1/RBWE_STR-KNUMH sy-vline 
WA_/BEV1/RBWE_STR-KUNWE sy-vline 
WA_/BEV1/RBWE_STR-MATNR sy-vline 
WA_/BEV1/RBWE_STR-VBELN sy-vline 
WA_/BEV1/RBWE_STR-POSNR sy-vline 
WA_/BEV1/RBWE_STR-BUTYP sy-vline 
WA_/BEV1/RBWE_STR-SIMKEY sy-vline 
WA_/BEV1/RBWE_STR-BONEM sy-vline 
WA_/BEV1/RBWE_STR-VKORG sy-vline 
WA_/BEV1/RBWE_STR-VTWEG sy-vline 
WA_/BEV1/RBWE_STR-SPART sy-vline 
WA_/BEV1/RBWE_STR-KNUMA_BO sy-vline 
WA_/BEV1/RBWE_STR-KSCHL sy-vline 
WA_/BEV1/RBWE_STR-VAKEY sy-vline 
WA_/BEV1/RBWE_STR-KOPOS sy-vline 
WA_/BEV1/RBWE_STR-BOART sy-vline 
WA_/BEV1/RBWE_STR-BOMAT sy-vline 
WA_/BEV1/RBWE_STR-KBETR sy-vline 
WA_/BEV1/RBWE_STR-KONWA sy-vline 
WA_/BEV1/RBWE_STR-KPEIN sy-vline 
WA_/BEV1/RBWE_STR-KMEIN sy-vline 
WA_/BEV1/RBWE_STR-KUMZA sy-vline 
WA_/BEV1/RBWE_STR-KUMNE sy-vline 
WA_/BEV1/RBWE_STR-MEINS sy-vline 
WA_/BEV1/RBWE_STR-KRECH sy-vline 
WA_/BEV1/RBWE_STR-KWAEH sy-vline 
WA_/BEV1/RBWE_STR-WAERS sy-vline 
WA_/BEV1/RBWE_STR-STFKZ sy-vline 
WA_/BEV1/RBWE_STR-KZBZG sy-vline 
WA_/BEV1/RBWE_STR-KONMS sy-vline 
WA_/BEV1/RBWE_STR-KONWS sy-vline 
WA_/BEV1/RBWE_STR-KBRUE sy-vline 
WA_/BEV1/RBWE_STR-BEGAB sy-vline 
WA_/BEV1/RBWE_STR-ENDAB sy-vline 
WA_/BEV1/RBWE_STR-FKDAT sy-vline 
WA_/BEV1/RBWE_STR-KWERT sy-vline 
WA_/BEV1/RBWE_STR-ZBONBA sy-vline 
WA_/BEV1/RBWE_STR-ZMENG sy-vline 
WA_/BEV1/RBWE_STR-KAWRT_A sy-vline 
WA_/BEV1/RBWE_STR-KMENG_A sy-vline 
WA_/BEV1/RBWE_STR-KSTBS_A sy-vline 
WA_/BEV1/RBWE_STR-RUWRT_A sy-vline 
WA_/BEV1/RBWE_STR-KWERT_A sy-vline 
WA_/BEV1/RBWE_STR-KBETS sy-vline 
WA_/BEV1/RBWE_STR-KSTBS sy-vline 
WA_/BEV1/RBWE_STR-KSTBM sy-vline 
WA_/BEV1/RBWE_STR-AUBEL sy-vline 
WA_/BEV1/RBWE_STR-BELNR sy-vline 
WA_/BEV1/RBWE_STR-GJAHR sy-vline 
WA_/BEV1/RBWE_STR-PERDE sy-vline 
WA_/BEV1/RBWE_STR-FKART sy-vline 
WA_/BEV1/RBWE_STR-HERKUNFT sy-vline 
WA_/BEV1/RBWE_STR-ABRKZ sy-vline 
WA_/BEV1/RBWE_STR-MODUS sy-vline 
WA_/BEV1/RBWE_STR-STORKZ sy-vline 
WA_/BEV1/RBWE_STR-ARCHKZ sy-vline 
WA_/BEV1/RBWE_STR-ERNAM sy-vline 
WA_/BEV1/RBWE_STR-ERZET sy-vline 
WA_/BEV1/RBWE_STR-ERDAT sy-vline 
WA_/BEV1/RBWE_STR-AENAM sy-vline 
WA_/BEV1/RBWE_STR-AEZET sy-vline 
WA_/BEV1/RBWE_STR-AEDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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