ABAP Select data from SAP table BFKKOPC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP BFKKOPC 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. 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 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 TYPE STANDARD TABLE OF BFKKOPC,
      WA_BFKKOPC TYPE BFKKOPC,
      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> TYPE BFKKOPC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BFKKOPC
*  INTO TABLE @DATA(IT_BFKKOPC2).
*--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 INDEX 1 INTO DATA(WA_BFKKOPC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BFKKOPC>-STYPE = 1.
<BFKKOPC>-TBNAM = 1.
<BFKKOPC>-PYGRP = 1.
<BFKKOPC>-CCINS = 1.
<BFKKOPC>-CCNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BFKKOPC-CCFOL, sy-vline,
  WA_BFKKOPC-DATAB, sy-vline,
  WA_BFKKOPC-DATBI, sy-vline,
  WA_BFKKOPC-CCNAME, sy-vline,
  WA_BFKKOPC-AUNUM, sy-vline,
  WA_BFKKOPC-AUTRA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BFKKOPC 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 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 INTO WA_BFKKOPC.


*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_STR, 
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_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_STR-STYPE sy-vline 
WA_BFKKOPC_STR-TBNAM sy-vline 
WA_BFKKOPC_STR-PYGRP sy-vline 
WA_BFKKOPC_STR-CCINS sy-vline 
WA_BFKKOPC_STR-CCNUM sy-vline 
WA_BFKKOPC_STR-CCFOL sy-vline 
WA_BFKKOPC_STR-DATAB sy-vline 
WA_BFKKOPC_STR-DATBI sy-vline 
WA_BFKKOPC_STR-CCNAME sy-vline 
WA_BFKKOPC_STR-AUNUM sy-vline 
WA_BFKKOPC_STR-AUTRA sy-vline 
WA_BFKKOPC_STR-AUDAT sy-vline 
WA_BFKKOPC_STR-AUTIM sy-vline 
WA_BFKKOPC_STR-AUART sy-vline 
WA_BFKKOPC_STR-AUTWR sy-vline 
WA_BFKKOPC_STR-CCWAE sy-vline 
WA_BFKKOPC_STR-MERCH sy-vline 
WA_BFKKOPC_STR-CVVAL sy-vline 
WA_BFKKOPC_STR-CVVCT sy-vline 
WA_BFKKOPC_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.