ABAP Select data from SAP table BAPI_IBKK_BALNOT_HEADER 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_BALNOT_HEADER 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_BALNOT_HEADER. 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_BALNOT_HEADER 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_BALNOT_HEADER TYPE STANDARD TABLE OF BAPI_IBKK_BALNOT_HEADER,
      WA_BAPI_IBKK_BALNOT_HEADER TYPE BAPI_IBKK_BALNOT_HEADER,
      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_BALNOT_HEADER> TYPE BAPI_IBKK_BALNOT_HEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_IBKK_BALNOT_HEADER
*  INTO TABLE @DATA(IT_BAPI_IBKK_BALNOT_HEADER2).
*--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_BALNOT_HEADER INDEX 1 INTO DATA(WA_BAPI_IBKK_BALNOT_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_IBKK_BALNOT_HEADER>-BALANCENOTIFICATIONYEAR = 1.
<BAPI_IBKK_BALNOT_HEADER>-BALANCENOTIFICATIONNUM = 1.
<BAPI_IBKK_BALNOT_HEADER>-KEYDATE = 1.
<BAPI_IBKK_BALNOT_HEADER>-BALANCENOTIFICATIONDATE = 1.
<BAPI_IBKK_BALNOT_HEADER>-BALANCENOTIFICATIONTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_IBKK_BALNOT_HEADER-BALANCE, sy-vline,
  WA_BAPI_IBKK_BALNOT_HEADER-CURRENCY, sy-vline,
  WA_BAPI_IBKK_BALNOT_HEADER-BALANCENOTIFICATIONYEARLAST, sy-vline,
  WA_BAPI_IBKK_BALNOT_HEADER-BALANCENOTIFICATIONNUMLAST, sy-vline,
  WA_BAPI_IBKK_BALNOT_HEADER-KEYDATELAST, sy-vline,
  WA_BAPI_IBKK_BALNOT_HEADER-BANKNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_IBKK_BALNOT_HEADER 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_BALNOT_HEADER 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_BALNOT_HEADER INTO WA_BAPI_IBKK_BALNOT_HEADER.


*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.

*Conversion exit ACEXT, internal->external for field EXTERNALACCOUNTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ACEXT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_IBKK_BALNOT_HEADER-EXTERNALACCOUNTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_IBKK_BALNOT_HEADER-EXTERNALACCOUNTNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNTNRINTERNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_IBKK_BALNOT_HEADER-ACCOUNTNRINTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_IBKK_BALNOT_HEADER-ACCOUNTNRINTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNERNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_IBKK_BALNOT_HEADER-BUSINESSPARTNERNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_IBKK_BALNOT_HEADER-BUSINESSPARTNERNO.
WRITE:/ 'New Value:', ld_input.
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_BALNOT_HEADER_STR, 
BALANCENOTIFICATIONYEAR TYPE STRING,
BALANCENOTIFICATIONNUM TYPE STRING,
KEYDATE TYPE STRING,
BALANCENOTIFICATIONDATE TYPE STRING,
BALANCENOTIFICATIONTIME TYPE STRING,
BALANCE TYPE STRING,
CURRENCY TYPE STRING,
BALANCENOTIFICATIONYEARLAST TYPE STRING,
BALANCENOTIFICATIONNUMLAST TYPE STRING,
KEYDATELAST TYPE STRING,
BANKNAME TYPE STRING,
REGION TYPE STRING,
HOUSENUMBERANDSTREET TYPE STRING,
CITY TYPE STRING,
BANKBRANCH TYPE STRING,
BANKKEY TYPE STRING,
BANKCOUNTRYKEY TYPE STRING,
DESCRBANKCOUNTRY TYPE STRING,
BANKCOUNTRYKEYISO TYPE STRING,
SWIFTCODE TYPE STRING,
BANKNUMBER TYPE STRING,
BANKAREA TYPE STRING,
EXTERNALACCOUNTNUMBER TYPE STRING,
ACCOUNTNRINTERNAL TYPE STRING,
BUSINESSPARTNERNO TYPE STRING,
ACCOUNTOPENINGDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_IBKK_BALNOT_HEADER_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_BALNOT_HEADER_STR-BALANCENOTIFICATIONYEAR sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BALANCENOTIFICATIONNUM sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-KEYDATE sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BALANCENOTIFICATIONDATE sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BALANCENOTIFICATIONTIME sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BALANCE sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-CURRENCY sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BALANCENOTIFICATIONYEARLAST sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BALANCENOTIFICATIONNUMLAST sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-KEYDATELAST sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKNAME sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-REGION sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-HOUSENUMBERANDSTREET sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-CITY sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKBRANCH sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKKEY sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKCOUNTRYKEY sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-DESCRBANKCOUNTRY sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKCOUNTRYKEYISO sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-SWIFTCODE sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKNUMBER sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BANKAREA sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-EXTERNALACCOUNTNUMBER sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-ACCOUNTNRINTERNAL sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-BUSINESSPARTNERNO sy-vline 
WA_BAPI_IBKK_BALNOT_HEADER_STR-ACCOUNTOPENINGDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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