ABAP Select data from SAP table BAPI_IBKK_TOTAL_COMMITMENT 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_TOTAL_COMMITMENT 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_TOTAL_COMMITMENT. 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_TOTAL_COMMITMENT 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_TOTAL_COMMITMENT TYPE STANDARD TABLE OF BAPI_IBKK_TOTAL_COMMITMENT,
      WA_BAPI_IBKK_TOTAL_COMMITMENT TYPE BAPI_IBKK_TOTAL_COMMITMENT,
      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_TOTAL_COMMITMENT> TYPE BAPI_IBKK_TOTAL_COMMITMENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_IBKK_TOTAL_COMMITMENT
*  INTO TABLE @DATA(IT_BAPI_IBKK_TOTAL_COMMITMENT2).
*--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_TOTAL_COMMITMENT INDEX 1 INTO DATA(WA_BAPI_IBKK_TOTAL_COMMITMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_IBKK_TOTAL_COMMITMENT>-IDNUM = 1.
<BAPI_IBKK_TOTAL_COMMITMENT>-ROLECATEGORY = 1.
<BAPI_IBKK_TOTAL_COMMITMENT>-INTERNALID = 1.
<BAPI_IBKK_TOTAL_COMMITMENT>-EXTERNALID = 1.
<BAPI_IBKK_TOTAL_COMMITMENT>-PRODUCT_DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_IBKK_TOTAL_COMMITMENT-START_OF_TERM, sy-vline,
  WA_BAPI_IBKK_TOTAL_COMMITMENT-TERMINATION_DATE, sy-vline,
  WA_BAPI_IBKK_TOTAL_COMMITMENT-END_OF_TERM, sy-vline,
  WA_BAPI_IBKK_TOTAL_COMMITMENT-CONTRACT_AMOUNT, sy-vline,
  WA_BAPI_IBKK_TOTAL_COMMITMENT-CONTRACT_CURRENCY, sy-vline,
  WA_BAPI_IBKK_TOTAL_COMMITMENT-CONTRACT_CURRENCY_ISO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_IBKK_TOTAL_COMMITMENT 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_TOTAL_COMMITMENT 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_TOTAL_COMMITMENT INTO WA_BAPI_IBKK_TOTAL_COMMITMENT.


*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_TOTAL_COMMITMENT_STR, 
IDNUM TYPE STRING,
ROLECATEGORY TYPE STRING,
INTERNALID TYPE STRING,
EXTERNALID TYPE STRING,
PRODUCT_DESCRIPTION TYPE STRING,
START_OF_TERM TYPE STRING,
TERMINATION_DATE TYPE STRING,
END_OF_TERM TYPE STRING,
CONTRACT_AMOUNT TYPE STRING,
CONTRACT_CURRENCY TYPE STRING,
CONTRACT_CURRENCY_ISO TYPE STRING,
S_COLL_AVAILABLE TYPE STRING,
3RD_PARTY TYPE STRING,
ASSET_LIABILITY TYPE STRING,
ACCOUNT_BALANCE TYPE STRING,
ACCOUNT_CURRENCY TYPE STRING,
ACCOUNT_CURRENCY_ISO TYPE STRING,
LIMIT_EXTERNAL TYPE STRING,
LIMIT_INTERNAL TYPE STRING,
LIMIT_CARD TYPE STRING,
LIMIT_CURRENCY TYPE STRING,
LIMIT_CURRENCY_ISO TYPE STRING,
BLOCKED TYPE STRING,
STATUS TYPE STRING,
CAT_KEY TYPE STRING,
CAT_DESCR TYPE STRING,
TYPE_KEY TYPE STRING,
CONTRACT_DESCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_IBKK_TOTAL_COMMITMENT_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_TOTAL_COMMITMENT_STR-IDNUM sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-ROLECATEGORY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-INTERNALID sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-EXTERNALID sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-PRODUCT_DESCRIPTION sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-START_OF_TERM sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-TERMINATION_DATE sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-END_OF_TERM sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-CONTRACT_AMOUNT sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-CONTRACT_CURRENCY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-CONTRACT_CURRENCY_ISO sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-S_COLL_AVAILABLE sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-3RD_PARTY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-ASSET_LIABILITY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-ACCOUNT_BALANCE sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-ACCOUNT_CURRENCY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-ACCOUNT_CURRENCY_ISO sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-LIMIT_EXTERNAL sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-LIMIT_INTERNAL sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-LIMIT_CARD sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-LIMIT_CURRENCY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-LIMIT_CURRENCY_ISO sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-BLOCKED sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-STATUS sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-CAT_KEY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-CAT_DESCR sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-TYPE_KEY sy-vline 
WA_BAPI_IBKK_TOTAL_COMMITMENT_STR-CONTRACT_DESCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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