ABAP Select data from SAP table BUVSTR_OUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BUVSTR_OUT
*  INTO TABLE @DATA(IT_BUVSTR_OUT2).
*--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_BUVSTR_OUT INDEX 1 INTO DATA(WA_BUVSTR_OUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BUVSTR_OUT>-BUKRS = 1.
<BUVSTR_OUT>-BELNR = 1.
<BUVSTR_OUT>-VBUND = 1.
<BUVSTR_OUT>-CURTP = 1.
<BUVSTR_OUT>-WAERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BUVSTR_OUT-WRBTR, sy-vline,
  WA_BUVSTR_OUT-TAX_COUNTRY, sy-vline,
  WA_BUVSTR_OUT-MWSKZ, sy-vline,
  WA_BUVSTR_OUT-TXDAT_FROM, sy-vline,
  WA_BUVSTR_OUT-KTOSL, sy-vline,
  WA_BUVSTR_OUT-HKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BUVSTR_OUT 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_BUVSTR_OUT 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_BUVSTR_OUT INTO WA_BUVSTR_OUT.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUVSTR_OUT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUVSTR_OUT-LIFNR.
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_BUVSTR_OUT_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
VBUND TYPE STRING,
CURTP TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
TAX_COUNTRY TYPE STRING,
MWSKZ TYPE STRING,
TXDAT_FROM TYPE STRING,
KTOSL TYPE STRING,
HKONT TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
KOART TYPE STRING,
BSCHL TYPE STRING,
BUZID TYPE STRING,
CCBKS TYPE STRING,
TXJCD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BUVSTR_OUT_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_BUVSTR_OUT_STR-BUKRS sy-vline 
WA_BUVSTR_OUT_STR-BELNR sy-vline 
WA_BUVSTR_OUT_STR-VBUND sy-vline 
WA_BUVSTR_OUT_STR-CURTP sy-vline 
WA_BUVSTR_OUT_STR-WAERS sy-vline 
WA_BUVSTR_OUT_STR-WRBTR sy-vline 
WA_BUVSTR_OUT_STR-TAX_COUNTRY sy-vline 
WA_BUVSTR_OUT_STR-MWSKZ sy-vline 
WA_BUVSTR_OUT_STR-TXDAT_FROM sy-vline 
WA_BUVSTR_OUT_STR-KTOSL sy-vline 
WA_BUVSTR_OUT_STR-HKONT sy-vline 
WA_BUVSTR_OUT_STR-KUNNR sy-vline 
WA_BUVSTR_OUT_STR-LIFNR sy-vline 
WA_BUVSTR_OUT_STR-KOART sy-vline 
WA_BUVSTR_OUT_STR-BSCHL sy-vline 
WA_BUVSTR_OUT_STR-BUZID sy-vline 
WA_BUVSTR_OUT_STR-CCBKS sy-vline 
WA_BUVSTR_OUT_STR-TXJCD sy-vline      INTO ld_text SEPARATED BY SPACE.

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