ABAP Select data from SAP table JBVBPKR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBVBPKR
*  INTO TABLE @DATA(IT_JBVBPKR2).
*--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_JBVBPKR INDEX 1 INTO DATA(WA_JBVBPKR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBVBPKR>-MANDT = 1.
<JBVBPKR>-RBPROD = 1.
<JBVBPKR>-RBPVAR = 1.
<JBVBPKR>-DGUELT = 1.
<JBVBPKR>-XBPROD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBVBPKR-RKALRG, sy-vline,
  WA_JBVBPKR-XKALRG, sy-vline,
  WA_JBVBPKR-RGSART, sy-vline,
  WA_JBVBPKR-LTX, sy-vline,
  WA_JBVBPKR-RREFPD, sy-vline,
  WA_JBVBPKR-RREFPV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBVBPKR 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_JBVBPKR 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_JBVBPKR INTO WA_JBVBPKR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_JBVBPKR_STR, 
MANDT TYPE STRING,
RBPROD TYPE STRING,
RBPVAR TYPE STRING,
DGUELT TYPE STRING,
XBPROD TYPE STRING,
RKALRG TYPE STRING,
XKALRG TYPE STRING,
RGSART TYPE STRING,
LTX TYPE STRING,
RREFPD TYPE STRING,
RREFPV TYPE STRING,
RFRIST TYPE STRING,
XFRIST TYPE STRING,
RRADKY TYPE STRING,
XADKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBVBPKR_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_JBVBPKR_STR-MANDT sy-vline 
WA_JBVBPKR_STR-RBPROD sy-vline 
WA_JBVBPKR_STR-RBPVAR sy-vline 
WA_JBVBPKR_STR-DGUELT sy-vline 
WA_JBVBPKR_STR-XBPROD sy-vline 
WA_JBVBPKR_STR-RKALRG sy-vline 
WA_JBVBPKR_STR-XKALRG sy-vline 
WA_JBVBPKR_STR-RGSART sy-vline 
WA_JBVBPKR_STR-LTX sy-vline 
WA_JBVBPKR_STR-RREFPD sy-vline 
WA_JBVBPKR_STR-RREFPV sy-vline 
WA_JBVBPKR_STR-RFRIST sy-vline 
WA_JBVBPKR_STR-XFRIST sy-vline 
WA_JBVBPKR_STR-RRADKY sy-vline 
WA_JBVBPKR_STR-XADKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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