ABAP Select data from SAP table BKKI5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BKKI5 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 BKKI5. 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 BKKI5 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_BKKI5 TYPE STANDARD TABLE OF BKKI5,
      WA_BKKI5 TYPE BKKI5,
      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: <BKKI5> TYPE BKKI5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BKKI5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BKKI5
  INTO TABLE IT_BKKI5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKKI5
*  INTO TABLE @DATA(IT_BKKI52).
*--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_BKKI5 INDEX 1 INTO DATA(WA_BKKI52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BKKI5 ASSIGNING <BKKI5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKKI5>-MANDT = 1.
<BKKI5>-DATE_SYPO = 1.
<BKKI5>-BKKRS = 1.
<BKKI5>-WAERS = 1.
<BKKI5>-ITEMTYPE = 1.

ENDLOOP.

LOOP AT IT_BKKI5 INTO WA_BKKI5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKKI5-XCRED, sy-vline,
  WA_BKKI5-PSTSUM, sy-vline,
  WA_BKKI5-PSTCNT, sy-vline,
  WA_BKKI5-ENQPSTSUM, sy-vline,
  WA_BKKI5-ENQPSTCNT, sy-vline,
  WA_BKKI5-ENQRELSUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKKI5 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_BKKI5 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_BKKI5 INTO WA_BKKI5.


*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_BKKI5_STR, 
MANDT TYPE STRING,
DATE_SYPO TYPE STRING,
BKKRS TYPE STRING,
WAERS TYPE STRING,
ITEMTYPE TYPE STRING,
XCRED TYPE STRING,
PSTSUM TYPE STRING,
PSTCNT TYPE STRING,
ENQPSTSUM TYPE STRING,
ENQPSTCNT TYPE STRING,
ENQRELSUM TYPE STRING,
ENQRELCNT TYPE STRING,
ENQPRESUM TYPE STRING,
ENQPRECNT TYPE STRING,
PREPSTSUM TYPE STRING,
PREPSTCNT TYPE STRING,
PREREJSUM TYPE STRING,
PREREJCNT TYPE STRING,
PRERELSUM TYPE STRING,
PRERELCNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKKI5_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_BKKI5_STR-MANDT sy-vline 
WA_BKKI5_STR-DATE_SYPO sy-vline 
WA_BKKI5_STR-BKKRS sy-vline 
WA_BKKI5_STR-WAERS sy-vline 
WA_BKKI5_STR-ITEMTYPE sy-vline 
WA_BKKI5_STR-XCRED sy-vline 
WA_BKKI5_STR-PSTSUM sy-vline 
WA_BKKI5_STR-PSTCNT sy-vline 
WA_BKKI5_STR-ENQPSTSUM sy-vline 
WA_BKKI5_STR-ENQPSTCNT sy-vline 
WA_BKKI5_STR-ENQRELSUM sy-vline 
WA_BKKI5_STR-ENQRELCNT sy-vline 
WA_BKKI5_STR-ENQPRESUM sy-vline 
WA_BKKI5_STR-ENQPRECNT sy-vline 
WA_BKKI5_STR-PREPSTSUM sy-vline 
WA_BKKI5_STR-PREPSTCNT sy-vline 
WA_BKKI5_STR-PREREJSUM sy-vline 
WA_BKKI5_STR-PREREJCNT sy-vline 
WA_BKKI5_STR-PRERELSUM sy-vline 
WA_BKKI5_STR-PRERELCNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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