ABAP Select data from SAP table BSEGZ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BSEGZ
*  INTO TABLE @DATA(IT_BSEGZ2).
*--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_BSEGZ INDEX 1 INTO DATA(WA_BSEGZ2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BSEGZ-DOCLN, sy-vline,
  WA_BSEGZ-AWITEM, sy-vline,
  WA_BSEGZ-AWITGRP, sy-vline,
  WA_BSEGZ-HRKFT, sy-vline,
  WA_BSEGZ-HKMAT, sy-vline,
  WA_BSEGZ-GKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BSEGZ 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_BSEGZ 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_BSEGZ INTO WA_BSEGZ.


*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_BSEGZ-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-BELNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit AC132, internal->external for field DMBE4
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE5
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE6
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE7
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE8
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE8
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE8.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE9
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE9
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE9.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE10
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE10
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE10.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE2_K
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE2_K
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE2_K.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DMBE3_O
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-DMBE3_O
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-DMBE3_O.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BDGT_CNSMPN_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BSEGZ-BDGT_CNSMPN_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSEGZ-BDGT_CNSMPN_YEAR.
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_BSEGZ_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
DOCLN TYPE STRING,
AWITEM TYPE STRING,
AWITGRP TYPE STRING,
HRKFT TYPE STRING,
HKMAT TYPE STRING,
GKONT TYPE STRING,
GKOAR TYPE STRING,
GSBER_GP TYPE STRING,
KZBEW TYPE STRING,
WMETH TYPE STRING,
XMFRW TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
HOART TYPE STRING,
RECID_MAN TYPE STRING,
XAKON TYPE STRING,
LAND1_ACNT TYPE STRING,
BEMOT TYPE STRING,
SCOPE TYPE STRING,
CACCT TYPE STRING,
PRZNR TYPE STRING,
SDSTR TYPE STRING,
AUTYP TYPE STRING,
PBUKRS_COFI TYPE STRING,
PAROB1 TYPE STRING,
POSNR_IN_BSEG TYPE STRING,
PRCTR_DRVTN_SOURCE_TYPE TYPE STRING,
ERLKZ TYPE STRING,
CO_KAKST TYPE STRING,
CO_KAAUF TYPE STRING,
CO_KAPRO TYPE STRING,
CO_KAKTR TYPE STRING,
CO_KANPL TYPE STRING,
CO_KAIMO TYPE STRING,
CO_KAKDA TYPE STRING,
CO_KAERG TYPE STRING,
CO_KAABS TYPE STRING,
CO_KAPRZ TYPE STRING,
CO_KASVD TYPE STRING,
CO_KASAT TYPE STRING,
KSTAR TYPE STRING,
DMBE4 TYPE STRING,
DMBE5 TYPE STRING,
DMBE6 TYPE STRING,
DMBE7 TYPE STRING,
DMBE8 TYPE STRING,
DMBE9 TYPE STRING,
DMBE10 TYPE STRING,
HWAE4 TYPE STRING,
HWAE5 TYPE STRING,
HWAE6 TYPE STRING,
HWAE7 TYPE STRING,
HWAE8 TYPE STRING,
HWAE9 TYPE STRING,
HWAE10 TYPE STRING,
CURT4 TYPE STRING,
CURT5 TYPE STRING,
CURT6 TYPE STRING,
CURT7 TYPE STRING,
CURT8 TYPE STRING,
CURT9 TYPE STRING,
CURT10 TYPE STRING,
DMBE2_K TYPE STRING,
HWAE2_K TYPE STRING,
CURT2_K TYPE STRING,
DMBE3_O TYPE STRING,
HWAE3_O TYPE STRING,
CURT3_O TYPE STRING,
PAOBJNR_ATTR TYPE STRING,
KSTAT TYPE STRING,
BDGT_CNSMPN_DATE TYPE STRING,
BDGT_CNSMPN_PERIOD TYPE STRING,
BDGT_CNSMPN_YEAR TYPE STRING,
BDGT_RELEVANT TYPE STRING,
BDGT_CNSMPN_TYPE TYPE STRING,
BDGT_CNSMPN_AMOUNT_TYPE TYPE STRING,
RSPONSORED_PROG TYPE STRING,
RSPONSORED_CLASS TYPE STRING,
RBDGT_VLDTY_NBR TYPE STRING,
LOGVO TYPE STRING,
SPONSORED_PROG TYPE STRING,
SPONSORED_CLASS TYPE STRING,
PRODPER TYPE STRING,
TCOBJNR TYPE STRING,
DATEOFSERVICE TYPE STRING,
NOTAXCORR TYPE STRING,
DIFFOPTRATE TYPE STRING,
HASDIFFOPTRATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BSEGZ_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_BSEGZ_STR-MANDT sy-vline 
WA_BSEGZ_STR-BUKRS sy-vline 
WA_BSEGZ_STR-BELNR sy-vline 
WA_BSEGZ_STR-GJAHR sy-vline 
WA_BSEGZ_STR-BUZEI sy-vline 
WA_BSEGZ_STR-DOCLN sy-vline 
WA_BSEGZ_STR-AWITEM sy-vline 
WA_BSEGZ_STR-AWITGRP sy-vline 
WA_BSEGZ_STR-HRKFT sy-vline 
WA_BSEGZ_STR-HKMAT sy-vline 
WA_BSEGZ_STR-GKONT sy-vline 
WA_BSEGZ_STR-GKOAR sy-vline 
WA_BSEGZ_STR-GSBER_GP sy-vline 
WA_BSEGZ_STR-KZBEW sy-vline 
WA_BSEGZ_STR-WMETH sy-vline 
WA_BSEGZ_STR-XMFRW sy-vline 
WA_BSEGZ_STR-SOBKZ sy-vline 
WA_BSEGZ_STR-KZVBR sy-vline 
WA_BSEGZ_STR-HOART sy-vline 
WA_BSEGZ_STR-RECID_MAN sy-vline 
WA_BSEGZ_STR-XAKON sy-vline 
WA_BSEGZ_STR-LAND1_ACNT sy-vline 
WA_BSEGZ_STR-BEMOT sy-vline 
WA_BSEGZ_STR-SCOPE sy-vline 
WA_BSEGZ_STR-CACCT sy-vline 
WA_BSEGZ_STR-PRZNR sy-vline 
WA_BSEGZ_STR-SDSTR sy-vline 
WA_BSEGZ_STR-AUTYP sy-vline 
WA_BSEGZ_STR-PBUKRS_COFI sy-vline 
WA_BSEGZ_STR-PAROB1 sy-vline 
WA_BSEGZ_STR-POSNR_IN_BSEG sy-vline 
WA_BSEGZ_STR-PRCTR_DRVTN_SOURCE_TYPE sy-vline 
WA_BSEGZ_STR-ERLKZ sy-vline 
WA_BSEGZ_STR-CO_KAKST sy-vline 
WA_BSEGZ_STR-CO_KAAUF sy-vline 
WA_BSEGZ_STR-CO_KAPRO sy-vline 
WA_BSEGZ_STR-CO_KAKTR sy-vline 
WA_BSEGZ_STR-CO_KANPL sy-vline 
WA_BSEGZ_STR-CO_KAIMO sy-vline 
WA_BSEGZ_STR-CO_KAKDA sy-vline 
WA_BSEGZ_STR-CO_KAERG sy-vline 
WA_BSEGZ_STR-CO_KAABS sy-vline 
WA_BSEGZ_STR-CO_KAPRZ sy-vline 
WA_BSEGZ_STR-CO_KASVD sy-vline 
WA_BSEGZ_STR-CO_KASAT sy-vline 
WA_BSEGZ_STR-KSTAR sy-vline 
WA_BSEGZ_STR-DMBE4 sy-vline 
WA_BSEGZ_STR-DMBE5 sy-vline 
WA_BSEGZ_STR-DMBE6 sy-vline 
WA_BSEGZ_STR-DMBE7 sy-vline 
WA_BSEGZ_STR-DMBE8 sy-vline 
WA_BSEGZ_STR-DMBE9 sy-vline 
WA_BSEGZ_STR-DMBE10 sy-vline 
WA_BSEGZ_STR-HWAE4 sy-vline 
WA_BSEGZ_STR-HWAE5 sy-vline 
WA_BSEGZ_STR-HWAE6 sy-vline 
WA_BSEGZ_STR-HWAE7 sy-vline 
WA_BSEGZ_STR-HWAE8 sy-vline 
WA_BSEGZ_STR-HWAE9 sy-vline 
WA_BSEGZ_STR-HWAE10 sy-vline 
WA_BSEGZ_STR-CURT4 sy-vline 
WA_BSEGZ_STR-CURT5 sy-vline 
WA_BSEGZ_STR-CURT6 sy-vline 
WA_BSEGZ_STR-CURT7 sy-vline 
WA_BSEGZ_STR-CURT8 sy-vline 
WA_BSEGZ_STR-CURT9 sy-vline 
WA_BSEGZ_STR-CURT10 sy-vline 
WA_BSEGZ_STR-DMBE2_K sy-vline 
WA_BSEGZ_STR-HWAE2_K sy-vline 
WA_BSEGZ_STR-CURT2_K sy-vline 
WA_BSEGZ_STR-DMBE3_O sy-vline 
WA_BSEGZ_STR-HWAE3_O sy-vline 
WA_BSEGZ_STR-CURT3_O sy-vline 
WA_BSEGZ_STR-PAOBJNR_ATTR sy-vline 
WA_BSEGZ_STR-KSTAT sy-vline 
WA_BSEGZ_STR-BDGT_CNSMPN_DATE sy-vline 
WA_BSEGZ_STR-BDGT_CNSMPN_PERIOD sy-vline 
WA_BSEGZ_STR-BDGT_CNSMPN_YEAR sy-vline 
WA_BSEGZ_STR-BDGT_RELEVANT sy-vline 
WA_BSEGZ_STR-BDGT_CNSMPN_TYPE sy-vline 
WA_BSEGZ_STR-BDGT_CNSMPN_AMOUNT_TYPE sy-vline 
WA_BSEGZ_STR-RSPONSORED_PROG sy-vline 
WA_BSEGZ_STR-RSPONSORED_CLASS sy-vline 
WA_BSEGZ_STR-RBDGT_VLDTY_NBR sy-vline 
WA_BSEGZ_STR-LOGVO sy-vline 
WA_BSEGZ_STR-SPONSORED_PROG sy-vline 
WA_BSEGZ_STR-SPONSORED_CLASS sy-vline 
WA_BSEGZ_STR-PRODPER sy-vline 
WA_BSEGZ_STR-TCOBJNR sy-vline 
WA_BSEGZ_STR-DATEOFSERVICE sy-vline 
WA_BSEGZ_STR-NOTAXCORR sy-vline 
WA_BSEGZ_STR-DIFFOPTRATE sy-vline 
WA_BSEGZ_STR-HASDIFFOPTRATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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