ABAP Select data from SAP table DBSET into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DBSET 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 DBSET. 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 DBSET 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_DBSET TYPE STANDARD TABLE OF DBSET,
      WA_DBSET TYPE DBSET,
      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: <DBSET> TYPE DBSET.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DBSET
*  INTO TABLE @DATA(IT_DBSET2).
*--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_DBSET INDEX 1 INTO DATA(WA_DBSET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DBSET>-MANDT = 1.
<DBSET>-BUKRS = 1.
<DBSET>-BELNR = 1.
<DBSET>-GJAHR = 1.
<DBSET>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DBSET-TAX_COUNTRY, sy-vline,
  WA_DBSET-MWSKZ, sy-vline,
  WA_DBSET-TXDAT_FROM, sy-vline,
  WA_DBSET-HKONT, sy-vline,
  WA_DBSET-TXGRP, sy-vline,
  WA_DBSET-SHKZG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DBSET 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_DBSET 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_DBSET INTO WA_DBSET.


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

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

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

*Conversion exit AC152, internal->external for field HWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-HWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-HWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-FWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-FWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-HWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-HWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-FWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-FWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field H2STE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-H2STE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-H2STE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field H3STE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-H3STE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-H3STE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field H2BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-H2BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-H2BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field H3BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-H3BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-H3BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field KBETR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-KBETR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-KBETR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field LWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-LWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-LWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-LWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-LWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FWSTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-FWSTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-FWSTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field PROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-PROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-PROJK.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DBSET-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DBSET-KOSTL.
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_DBSET_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
TAX_COUNTRY TYPE STRING,
MWSKZ TYPE STRING,
TXDAT_FROM TYPE STRING,
HKONT TYPE STRING,
TXGRP TYPE STRING,
SHKZG TYPE STRING,
HWBAS TYPE STRING,
FWBAS TYPE STRING,
HWSTE TYPE STRING,
FWSTE TYPE STRING,
KTOSL TYPE STRING,
KNUMH TYPE STRING,
STCEG TYPE STRING,
EGBLD TYPE STRING,
EGLLD TYPE STRING,
TXJCD TYPE STRING,
H2STE TYPE STRING,
H3STE TYPE STRING,
H2BAS TYPE STRING,
H3BAS TYPE STRING,
KSCHL TYPE STRING,
STMDT TYPE STRING,
STMTI TYPE STRING,
MLDDT TYPE STRING,
KBETR TYPE STRING,
STBKZ TYPE STRING,
LSTML TYPE STRING,
LWSTE TYPE STRING,
LWBAS TYPE STRING,
TXDAT TYPE STRING,
BUPLA TYPE STRING,
TXJDP TYPE STRING,
TXJLV TYPE STRING,
TAXPS TYPE STRING,
TXMOD TYPE STRING,
_DATAAGING TYPE STRING,
FIWTIN_CHN TYPE STRING,
FIWTIN_CHD TYPE STRING,
BSCHL TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
KNTYP TYPE STRING,
KRECH TYPE STRING,
XAUTO TYPE STRING,
FWSTR TYPE STRING,
ANZHL TYPE STRING,
FWBASZERO TYPE STRING,
POINT TYPE STRING,
GSBER TYPE STRING,
MATNR TYPE STRING,
MENGE TYPE STRING,
BWTAR TYPE STRING,
MEINS TYPE STRING,
WERKS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
PROJK TYPE STRING,
PRCTR TYPE STRING,
AUFNR TYPE STRING,
KOSTL TYPE STRING,
KOKRS TYPE STRING,
BLART TYPE STRING,
MATKL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DBSET_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_DBSET_STR-MANDT sy-vline 
WA_DBSET_STR-BUKRS sy-vline 
WA_DBSET_STR-BELNR sy-vline 
WA_DBSET_STR-GJAHR sy-vline 
WA_DBSET_STR-BUZEI sy-vline 
WA_DBSET_STR-TAX_COUNTRY sy-vline 
WA_DBSET_STR-MWSKZ sy-vline 
WA_DBSET_STR-TXDAT_FROM sy-vline 
WA_DBSET_STR-HKONT sy-vline 
WA_DBSET_STR-TXGRP sy-vline 
WA_DBSET_STR-SHKZG sy-vline 
WA_DBSET_STR-HWBAS sy-vline 
WA_DBSET_STR-FWBAS sy-vline 
WA_DBSET_STR-HWSTE sy-vline 
WA_DBSET_STR-FWSTE sy-vline 
WA_DBSET_STR-KTOSL sy-vline 
WA_DBSET_STR-KNUMH sy-vline 
WA_DBSET_STR-STCEG sy-vline 
WA_DBSET_STR-EGBLD sy-vline 
WA_DBSET_STR-EGLLD sy-vline 
WA_DBSET_STR-TXJCD sy-vline 
WA_DBSET_STR-H2STE sy-vline 
WA_DBSET_STR-H3STE sy-vline 
WA_DBSET_STR-H2BAS sy-vline 
WA_DBSET_STR-H3BAS sy-vline 
WA_DBSET_STR-KSCHL sy-vline 
WA_DBSET_STR-STMDT sy-vline 
WA_DBSET_STR-STMTI sy-vline 
WA_DBSET_STR-MLDDT sy-vline 
WA_DBSET_STR-KBETR sy-vline 
WA_DBSET_STR-STBKZ sy-vline 
WA_DBSET_STR-LSTML sy-vline 
WA_DBSET_STR-LWSTE sy-vline 
WA_DBSET_STR-LWBAS sy-vline 
WA_DBSET_STR-TXDAT sy-vline 
WA_DBSET_STR-BUPLA sy-vline 
WA_DBSET_STR-TXJDP sy-vline 
WA_DBSET_STR-TXJLV sy-vline 
WA_DBSET_STR-TAXPS sy-vline 
WA_DBSET_STR-TXMOD sy-vline 
WA_DBSET_STR-_DATAAGING sy-vline 
WA_DBSET_STR-FIWTIN_CHN sy-vline 
WA_DBSET_STR-FIWTIN_CHD sy-vline 
WA_DBSET_STR-BSCHL sy-vline 
WA_DBSET_STR-KPOSN sy-vline 
WA_DBSET_STR-STUNR sy-vline 
WA_DBSET_STR-KNTYP sy-vline 
WA_DBSET_STR-KRECH sy-vline 
WA_DBSET_STR-XAUTO sy-vline 
WA_DBSET_STR-FWSTR sy-vline 
WA_DBSET_STR-ANZHL sy-vline 
WA_DBSET_STR-FWBASZERO sy-vline 
WA_DBSET_STR-POINT sy-vline 
WA_DBSET_STR-GSBER sy-vline 
WA_DBSET_STR-MATNR sy-vline 
WA_DBSET_STR-MENGE sy-vline 
WA_DBSET_STR-BWTAR sy-vline 
WA_DBSET_STR-MEINS sy-vline 
WA_DBSET_STR-WERKS sy-vline 
WA_DBSET_STR-EBELN sy-vline 
WA_DBSET_STR-EBELP sy-vline 
WA_DBSET_STR-PROJK sy-vline 
WA_DBSET_STR-PRCTR sy-vline 
WA_DBSET_STR-AUFNR sy-vline 
WA_DBSET_STR-KOSTL sy-vline 
WA_DBSET_STR-KOKRS sy-vline 
WA_DBSET_STR-BLART sy-vline 
WA_DBSET_STR-MATKL sy-vline      INTO ld_text SEPARATED BY SPACE.

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