ABAP Select data from SAP table BPVC into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BPVC 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 BPVC. 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 BPVC 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_BPVC TYPE STANDARD TABLE OF BPVC,
      WA_BPVC TYPE BPVC,
      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: <BPVC> TYPE BPVC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BPVC
*  INTO TABLE @DATA(IT_BPVC2).
*--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_BPVC INDEX 1 INTO DATA(WA_BPVC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BPVC>-ORGVG = 1.
<BPVC>-REFBN = 1.
<BPVC>-RFPOS = 1.
<BPVC>-GJAHR = 1.
<BPVC>-PERIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BPVC-OBJNR, sy-vline,
  WA_BPVC-PAROB, sy-vline,
  WA_BPVC-KOKRS, sy-vline,
  WA_BPVC-KSTAR, sy-vline,
  WA_BPVC-WRTTP, sy-vline,
  WA_BPVC-BEKNZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BPVC 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_BPVC 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_BPVC INTO WA_BPVC.


*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 REFBN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BPVC-REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BPVC-REFBN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_BPVC-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BPVC-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field GNJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BPVC-GNJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BPVC-GNJHR.
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_BPVC_STR, 
ORGVG TYPE STRING,
REFBN TYPE STRING,
RFPOS TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,
OBJNR TYPE STRING,
PAROB TYPE STRING,
KOKRS TYPE STRING,
KSTAR TYPE STRING,
WRTTP TYPE STRING,
BEKNZ TYPE STRING,
WKGBTR TYPE STRING,
WOGBTR TYPE STRING,
WTGBTR TYPE STRING,
TWAER TYPE STRING,
HRKFT TYPE STRING,
FIKRS TYPE STRING,
GEBER TYPE STRING,
POSIT TYPE STRING,
FIPOS TYPE STRING,
ZOBJNR TYPE STRING,
ZPOSIT TYPE STRING,
TRGKZ TYPE STRING,
AUTYP TYPE STRING,
RLDNR TYPE STRING,
VORGA TYPE STRING,
GNJHR TYPE STRING,
FAREA TYPE STRING,
POTYP TYPE STRING,
NEG_BUD TYPE STRING,
LWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BPVC_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_BPVC_STR-ORGVG sy-vline 
WA_BPVC_STR-REFBN sy-vline 
WA_BPVC_STR-RFPOS sy-vline 
WA_BPVC_STR-GJAHR sy-vline 
WA_BPVC_STR-PERIO sy-vline 
WA_BPVC_STR-OBJNR sy-vline 
WA_BPVC_STR-PAROB sy-vline 
WA_BPVC_STR-KOKRS sy-vline 
WA_BPVC_STR-KSTAR sy-vline 
WA_BPVC_STR-WRTTP sy-vline 
WA_BPVC_STR-BEKNZ sy-vline 
WA_BPVC_STR-WKGBTR sy-vline 
WA_BPVC_STR-WOGBTR sy-vline 
WA_BPVC_STR-WTGBTR sy-vline 
WA_BPVC_STR-TWAER sy-vline 
WA_BPVC_STR-HRKFT sy-vline 
WA_BPVC_STR-FIKRS sy-vline 
WA_BPVC_STR-GEBER sy-vline 
WA_BPVC_STR-POSIT sy-vline 
WA_BPVC_STR-FIPOS sy-vline 
WA_BPVC_STR-ZOBJNR sy-vline 
WA_BPVC_STR-ZPOSIT sy-vline 
WA_BPVC_STR-TRGKZ sy-vline 
WA_BPVC_STR-AUTYP sy-vline 
WA_BPVC_STR-RLDNR sy-vline 
WA_BPVC_STR-VORGA sy-vline 
WA_BPVC_STR-GNJHR sy-vline 
WA_BPVC_STR-FAREA sy-vline 
WA_BPVC_STR-POTYP sy-vline 
WA_BPVC_STR-NEG_BUD sy-vline 
WA_BPVC_STR-LWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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