ABAP Select data from SAP table EKUNBANKD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EKUNBANKD
*  INTO TABLE @DATA(IT_EKUNBANKD2).
*--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_EKUNBANKD INDEX 1 INTO DATA(WA_EKUNBANKD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EKUNBANKD>-BKVID = 1.
<EKUNBANKD>-BANKS = 1.
<EKUNBANKD>-BANKL = 1.
<EKUNBANKD>-BANKN = 1.
<EKUNBANKD>-BKONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EKUNBANKD-BKREF, sy-vline,
  WA_EKUNBANKD-KOINH, sy-vline,
  WA_EKUNBANKD-BKEXT, sy-vline,
  WA_EKUNBANKD-BKDSC, sy-vline,
  WA_EKUNBANKD-BKVID2, sy-vline,
  WA_EKUNBANKD-BANKS2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EKUNBANKD 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_EKUNBANKD 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_EKUNBANKD INTO WA_EKUNBANKD.


*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_EKUNBANKD_STR, 
BKVID TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
BKREF TYPE STRING,
KOINH TYPE STRING,
BKEXT TYPE STRING,
BKDSC TYPE STRING,
BKVID2 TYPE STRING,
BANKS2 TYPE STRING,
BANKL2 TYPE STRING,
BANKN2 TYPE STRING,
BKONT2 TYPE STRING,
BKREF2 TYPE STRING,
KOINH2 TYPE STRING,
BKEXT2 TYPE STRING,
BKDSC2 TYPE STRING,
COUNT_BANK TYPE STRING,
BANKA TYPE STRING,
BRNCH TYPE STRING,
OTHER_BANK TYPE STRING,
IBAN TYPE STRING,
IBAN2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EKUNBANKD_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_EKUNBANKD_STR-BKVID sy-vline 
WA_EKUNBANKD_STR-BANKS sy-vline 
WA_EKUNBANKD_STR-BANKL sy-vline 
WA_EKUNBANKD_STR-BANKN sy-vline 
WA_EKUNBANKD_STR-BKONT sy-vline 
WA_EKUNBANKD_STR-BKREF sy-vline 
WA_EKUNBANKD_STR-KOINH sy-vline 
WA_EKUNBANKD_STR-BKEXT sy-vline 
WA_EKUNBANKD_STR-BKDSC sy-vline 
WA_EKUNBANKD_STR-BKVID2 sy-vline 
WA_EKUNBANKD_STR-BANKS2 sy-vline 
WA_EKUNBANKD_STR-BANKL2 sy-vline 
WA_EKUNBANKD_STR-BANKN2 sy-vline 
WA_EKUNBANKD_STR-BKONT2 sy-vline 
WA_EKUNBANKD_STR-BKREF2 sy-vline 
WA_EKUNBANKD_STR-KOINH2 sy-vline 
WA_EKUNBANKD_STR-BKEXT2 sy-vline 
WA_EKUNBANKD_STR-BKDSC2 sy-vline 
WA_EKUNBANKD_STR-COUNT_BANK sy-vline 
WA_EKUNBANKD_STR-BANKA sy-vline 
WA_EKUNBANKD_STR-BRNCH sy-vline 
WA_EKUNBANKD_STR-OTHER_BANK sy-vline 
WA_EKUNBANKD_STR-IBAN sy-vline 
WA_EKUNBANKD_STR-IBAN2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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