ABAP Select data from SAP table BFKKOPC_BI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BFKKOPC_BI
*  INTO TABLE @DATA(IT_BFKKOPC_BI2).
*--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_BFKKOPC_BI INDEX 1 INTO DATA(WA_BFKKOPC_BI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BFKKOPC_BI>-LINENR_BI = 1.
<BFKKOPC_BI>-BELNR_BI = 1.
<BFKKOPC_BI>-LINENR_REF = 1.
<BFKKOPC_BI>-STYPE = 1.
<BFKKOPC_BI>-TBNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BFKKOPC_BI-PYGRP, sy-vline,
  WA_BFKKOPC_BI-CCINS, sy-vline,
  WA_BFKKOPC_BI-CCNUM, sy-vline,
  WA_BFKKOPC_BI-CCFOL, sy-vline,
  WA_BFKKOPC_BI-DATAB, sy-vline,
  WA_BFKKOPC_BI-DATBI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BFKKOPC_BI 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_BFKKOPC_BI 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_BFKKOPC_BI INTO WA_BFKKOPC_BI.


*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_BFKKOPC_BI_STR, 
LINENR_BI TYPE STRING,
BELNR_BI TYPE STRING,
LINENR_REF TYPE STRING,
STYPE TYPE STRING,
TBNAM TYPE STRING,
PYGRP TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
CCFOL TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
CCNAME TYPE STRING,
AUNUM TYPE STRING,
AUTRA TYPE STRING,
AUDAT TYPE STRING,
AUTIM TYPE STRING,
AUART TYPE STRING,
AUTWR TYPE STRING,
CCWAE TYPE STRING,
MERCH TYPE STRING,
CVVAL TYPE STRING,
CVVCT TYPE STRING,
CVVST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BFKKOPC_BI_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_BFKKOPC_BI_STR-LINENR_BI sy-vline 
WA_BFKKOPC_BI_STR-BELNR_BI sy-vline 
WA_BFKKOPC_BI_STR-LINENR_REF sy-vline 
WA_BFKKOPC_BI_STR-STYPE sy-vline 
WA_BFKKOPC_BI_STR-TBNAM sy-vline 
WA_BFKKOPC_BI_STR-PYGRP sy-vline 
WA_BFKKOPC_BI_STR-CCINS sy-vline 
WA_BFKKOPC_BI_STR-CCNUM sy-vline 
WA_BFKKOPC_BI_STR-CCFOL sy-vline 
WA_BFKKOPC_BI_STR-DATAB sy-vline 
WA_BFKKOPC_BI_STR-DATBI sy-vline 
WA_BFKKOPC_BI_STR-CCNAME sy-vline 
WA_BFKKOPC_BI_STR-AUNUM sy-vline 
WA_BFKKOPC_BI_STR-AUTRA sy-vline 
WA_BFKKOPC_BI_STR-AUDAT sy-vline 
WA_BFKKOPC_BI_STR-AUTIM sy-vline 
WA_BFKKOPC_BI_STR-AUART sy-vline 
WA_BFKKOPC_BI_STR-AUTWR sy-vline 
WA_BFKKOPC_BI_STR-CCWAE sy-vline 
WA_BFKKOPC_BI_STR-MERCH sy-vline 
WA_BFKKOPC_BI_STR-CVVAL sy-vline 
WA_BFKKOPC_BI_STR-CVVCT sy-vline 
WA_BFKKOPC_BI_STR-CVVST sy-vline      INTO ld_text SEPARATED BY SPACE.

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