ABAP Select data from SAP table BAPI_IBKK_HOLD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_IBKK_HOLD
*  INTO TABLE @DATA(IT_BAPI_IBKK_HOLD2).
*--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_BAPI_IBKK_HOLD INDEX 1 INTO DATA(WA_BAPI_IBKK_HOLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_IBKK_HOLD>-RECORDID = 1.
<BAPI_IBKK_HOLD>-GROUPID = 1.
<BAPI_IBKK_HOLD>-HOLDTYPE = 1.
<BAPI_IBKK_HOLD>-HOLDTYPE_DESCRIPTION = 1.
<BAPI_IBKK_HOLD>-HOLDCUR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_IBKK_HOLD-HOLDCUR_DESCRIPTION, sy-vline,
  WA_BAPI_IBKK_HOLD-HOLDAMOUNT, sy-vline,
  WA_BAPI_IBKK_HOLD-VALIDFROMDATE, sy-vline,
  WA_BAPI_IBKK_HOLD-VALIDTODATE, sy-vline,
  WA_BAPI_IBKK_HOLD-REFNUM, sy-vline,
  WA_BAPI_IBKK_HOLD-REFTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_IBKK_HOLD 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_BAPI_IBKK_HOLD 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_BAPI_IBKK_HOLD INTO WA_BAPI_IBKK_HOLD.


*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_BAPI_IBKK_HOLD_STR, 
RECORDID TYPE STRING,
GROUPID TYPE STRING,
HOLDTYPE TYPE STRING,
HOLDTYPE_DESCRIPTION TYPE STRING,
HOLDCUR TYPE STRING,
HOLDCUR_DESCRIPTION TYPE STRING,
HOLDAMOUNT TYPE STRING,
VALIDFROMDATE TYPE STRING,
VALIDTODATE TYPE STRING,
REFNUM TYPE STRING,
REFTYPE TYPE STRING,
REFTYPE_DESCRIPTION TYPE STRING,
HOLDACTIVE TYPE STRING,
ISSUEDATE TYPE STRING,
REMOVEDATE TYPE STRING,
STATUS TYPE STRING,
STATUS_DESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_IBKK_HOLD_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_BAPI_IBKK_HOLD_STR-RECORDID sy-vline 
WA_BAPI_IBKK_HOLD_STR-GROUPID sy-vline 
WA_BAPI_IBKK_HOLD_STR-HOLDTYPE sy-vline 
WA_BAPI_IBKK_HOLD_STR-HOLDTYPE_DESCRIPTION sy-vline 
WA_BAPI_IBKK_HOLD_STR-HOLDCUR sy-vline 
WA_BAPI_IBKK_HOLD_STR-HOLDCUR_DESCRIPTION sy-vline 
WA_BAPI_IBKK_HOLD_STR-HOLDAMOUNT sy-vline 
WA_BAPI_IBKK_HOLD_STR-VALIDFROMDATE sy-vline 
WA_BAPI_IBKK_HOLD_STR-VALIDTODATE sy-vline 
WA_BAPI_IBKK_HOLD_STR-REFNUM sy-vline 
WA_BAPI_IBKK_HOLD_STR-REFTYPE sy-vline 
WA_BAPI_IBKK_HOLD_STR-REFTYPE_DESCRIPTION sy-vline 
WA_BAPI_IBKK_HOLD_STR-HOLDACTIVE sy-vline 
WA_BAPI_IBKK_HOLD_STR-ISSUEDATE sy-vline 
WA_BAPI_IBKK_HOLD_STR-REMOVEDATE sy-vline 
WA_BAPI_IBKK_HOLD_STR-STATUS sy-vline 
WA_BAPI_IBKK_HOLD_STR-STATUS_DESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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