ABAP Select data from SAP table BSEGX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BSEGX
*  INTO TABLE @DATA(IT_BSEGX2).
*--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_BSEGX INDEX 1 INTO DATA(WA_BSEGX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BSEGX>-DMBTR = 1.
<BSEGX>-WRBTR = 1.
<BSEGX>-DMBE2 = 1.
<BSEGX>-DMBE3 = 1.
<BSEGX>-HWBAS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BSEGX-FWBAS, sy-vline,
  WA_BSEGX-TXBH2, sy-vline,
  WA_BSEGX-TXBH3, sy-vline,
  WA_BSEGX-MWSTS, sy-vline,
  WA_BSEGX-WMWST, sy-vline,
  WA_BSEGX-SKNTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BSEGX 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_BSEGX 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_BSEGX INTO WA_BSEGX.


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

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

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-DMBE3.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AU132, internal->external for field TXBH2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-TXBH2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-TXBH2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TXBH3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-TXBH3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-TXBH3.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit AU132, internal->external for field SKNT2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-SKNT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-SKNT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKNT3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-SKNT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-SKNT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBEL2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-VBEL2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-VBEL2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AU132, internal->external for field MWST2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-MWST2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-MWST2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field MWST3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-MWST3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-MWST3.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC132, internal->external for field PPDIFF
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-PPDIFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-PPDIFF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field PPDIF2
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-PPDIF2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-PPDIF2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field PPDIF3
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-PPDIF3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-PPDIF3.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BDGT_ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BSEGX-BDGT_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGX-BDGT_ACCOUNT.
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_BSEGX_STR, 
DMBTR TYPE STRING,
WRBTR TYPE STRING,
DMBE2 TYPE STRING,
DMBE3 TYPE STRING,
HWBAS TYPE STRING,
FWBAS TYPE STRING,
TXBH2 TYPE STRING,
TXBH3 TYPE STRING,
MWSTS TYPE STRING,
WMWST TYPE STRING,
SKNTO TYPE STRING,
SKNT2 TYPE STRING,
SKNT3 TYPE STRING,
VBEL2 TYPE STRING,
POSN2 TYPE STRING,
ETEN2 TYPE STRING,
BEWAR TYPE STRING,
PROJK TYPE STRING,
PPRCT TYPE STRING,
WMETH TYPE STRING,
MWST2 TYPE STRING,
MWST3 TYPE STRING,
QSZNR TYPE STRING,
FKBER_LONG TYPE STRING,
SCTAX TYPE STRING,
TXBHW TYPE STRING,
PPDIFF TYPE STRING,
PPDIF2 TYPE STRING,
PPDIF3 TYPE STRING,
RE_BUKRS TYPE STRING,
RE_ACCOUNT TYPE STRING,
BDGT_ACCOUNT TYPE STRING,
BDGT_ACCOUNT_COCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BSEGX_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_BSEGX_STR-DMBTR sy-vline 
WA_BSEGX_STR-WRBTR sy-vline 
WA_BSEGX_STR-DMBE2 sy-vline 
WA_BSEGX_STR-DMBE3 sy-vline 
WA_BSEGX_STR-HWBAS sy-vline 
WA_BSEGX_STR-FWBAS sy-vline 
WA_BSEGX_STR-TXBH2 sy-vline 
WA_BSEGX_STR-TXBH3 sy-vline 
WA_BSEGX_STR-MWSTS sy-vline 
WA_BSEGX_STR-WMWST sy-vline 
WA_BSEGX_STR-SKNTO sy-vline 
WA_BSEGX_STR-SKNT2 sy-vline 
WA_BSEGX_STR-SKNT3 sy-vline 
WA_BSEGX_STR-VBEL2 sy-vline 
WA_BSEGX_STR-POSN2 sy-vline 
WA_BSEGX_STR-ETEN2 sy-vline 
WA_BSEGX_STR-BEWAR sy-vline 
WA_BSEGX_STR-PROJK sy-vline 
WA_BSEGX_STR-PPRCT sy-vline 
WA_BSEGX_STR-WMETH sy-vline 
WA_BSEGX_STR-MWST2 sy-vline 
WA_BSEGX_STR-MWST3 sy-vline 
WA_BSEGX_STR-QSZNR sy-vline 
WA_BSEGX_STR-FKBER_LONG sy-vline 
WA_BSEGX_STR-SCTAX sy-vline 
WA_BSEGX_STR-TXBHW sy-vline 
WA_BSEGX_STR-PPDIFF sy-vline 
WA_BSEGX_STR-PPDIF2 sy-vline 
WA_BSEGX_STR-PPDIF3 sy-vline 
WA_BSEGX_STR-RE_BUKRS sy-vline 
WA_BSEGX_STR-RE_ACCOUNT sy-vline 
WA_BSEGX_STR-BDGT_ACCOUNT sy-vline 
WA_BSEGX_STR-BDGT_ACCOUNT_COCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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