ABAP Select data from SAP table BVIGBHVGRD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BVIGBHVGRD
*  INTO TABLE @DATA(IT_BVIGBHVGRD2).
*--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_BVIGBHVGRD INDEX 1 INTO DATA(WA_BVIGBHVGRD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BVIGBHVGRD>-STYPE = 1.
<BVIGBHVGRD>-SBVNR = 1.
<BVIGBHVGRD>-SLFDHVGRD = 1.
<BVIGBHVGRD>-GEMARKUNG = 1.
<BVIGBHVGRD>-FLUR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BVIGBHVGRD-FLURSTUECK, sy-vline,
  WA_BVIGBHVGRD-GBBEZ, sy-vline,
  WA_BVIGBHVGRD-BLATTNR, sy-vline,
  WA_BVIGBHVGRD-BANDNR, sy-vline,
  WA_BVIGBHVGRD-ABT, sy-vline,
  WA_BVIGBHVGRD-LFD_ABT_2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BVIGBHVGRD 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_BVIGBHVGRD 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_BVIGBHVGRD INTO WA_BVIGBHVGRD.


*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 FLUR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BVIGBHVGRD-FLUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BVIGBHVGRD-FLUR.
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_BVIGBHVGRD_STR, 
STYPE TYPE STRING,
SBVNR TYPE STRING,
SLFDHVGRD TYPE STRING,
GEMARKUNG TYPE STRING,
FLUR TYPE STRING,
FLURSTUECK TYPE STRING,
GBBEZ TYPE STRING,
BLATTNR TYPE STRING,
BANDNR TYPE STRING,
ABT TYPE STRING,
LFD_ABT_2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BVIGBHVGRD_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_BVIGBHVGRD_STR-STYPE sy-vline 
WA_BVIGBHVGRD_STR-SBVNR sy-vline 
WA_BVIGBHVGRD_STR-SLFDHVGRD sy-vline 
WA_BVIGBHVGRD_STR-GEMARKUNG sy-vline 
WA_BVIGBHVGRD_STR-FLUR sy-vline 
WA_BVIGBHVGRD_STR-FLURSTUECK sy-vline 
WA_BVIGBHVGRD_STR-GBBEZ sy-vline 
WA_BVIGBHVGRD_STR-BLATTNR sy-vline 
WA_BVIGBHVGRD_STR-BANDNR sy-vline 
WA_BVIGBHVGRD_STR-ABT sy-vline 
WA_BVIGBHVGRD_STR-LFD_ABT_2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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