ABAP Select data from SAP table BKK_STR_ARC_PRENOTE_ARCHKEY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKK_STR_ARC_PRENOTE_ARCHKEY
*  INTO TABLE @DATA(IT_BKK_STR_ARC_PRENOTE_ARCHKEY2).
*--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_BKK_STR_ARC_PRENOTE_ARCHKEY INDEX 1 INTO DATA(WA_BKK_STR_ARC_PRENOTE_ARCHKEY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKK_STR_ARC_PRENOTE_ARCHKEY>-MANDT = 1.
<BKK_STR_ARC_PRENOTE_ARCHKEY>-BKKRS = 1.
<BKK_STR_ARC_PRENOTE_ARCHKEY>-ACNUM_INT = 1.
<BKK_STR_ARC_PRENOTE_ARCHKEY>-PRENOTE_ID_INT = 1.
<BKK_STR_ARC_PRENOTE_ARCHKEY>-RELEASE_FLAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKK_STR_ARC_PRENOTE_ARCHKEY-PRENOTE_TYPE_ID, sy-vline,
  WA_BKK_STR_ARC_PRENOTE_ARCHKEY-PRENOTE_REF_NO, sy-vline,
  WA_BKK_STR_ARC_PRENOTE_ARCHKEY-VALID_FROM, sy-vline,
  WA_BKK_STR_ARC_PRENOTE_ARCHKEY-VALID_TO, sy-vline,
  WA_BKK_STR_ARC_PRENOTE_ARCHKEY-STATUS, sy-vline,
  WA_BKK_STR_ARC_PRENOTE_ARCHKEY-PRENOTE_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKK_STR_ARC_PRENOTE_ARCHKEY 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_BKK_STR_ARC_PRENOTE_ARCHKEY 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_BKK_STR_ARC_PRENOTE_ARCHKEY INTO WA_BKK_STR_ARC_PRENOTE_ARCHKEY.


*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 ALPHA, internal->external for field ACNUM_INT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKK_STR_ARC_PRENOTE_ARCHKEY-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK_STR_ARC_PRENOTE_ARCHKEY-ACNUM_INT.
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_BKK_STR_ARC_PRENOTE_ARCHKEY_STR, 
MANDT TYPE STRING,
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
PRENOTE_ID_INT TYPE STRING,
RELEASE_FLAG TYPE STRING,
PRENOTE_TYPE_ID TYPE STRING,
PRENOTE_REF_NO TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
STATUS TYPE STRING,
PRENOTE_AMOUNT TYPE STRING,
PRENOTE_CURR TYPE STRING,
ACUR TYPE STRING,
A_AMOUNT TYPE STRING,
NA_CURR TYPE STRING,
NA_AMOUNT TYPE STRING,
MEDIUM TYPE STRING,
BUPA_NAME TYPE STRING,
PAYM_RECEIPIENT TYPE STRING,
SHORT_TEXT TYPE STRING,
LONG_TEXT TYPE STRING,
XCHK_LIMIT TYPE STRING,
XCHK_ACLCK TYPE STRING,
XCHK_BPLCK TYPE STRING,
XCHK_NAMECHECK TYPE STRING,
XCHK_DIRDEB TYPE STRING,
XCHK_COLAUTH TYPE STRING,
XCHK_CUST_CHECK TYPE STRING,
XERR_LIMIT TYPE STRING,
XERR_ACLCK TYPE STRING,
XERR_BPLCK TYPE STRING,
XERR_NAMECHECK TYPE STRING,
XERR_DIRDEB TYPE STRING,
XERR_COLAUTH TYPE STRING,
DOCNO TYPE STRING,
POSNO TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
RLUSR TYPE STRING,
RLDAT TYPE STRING,
RLTIM TYPE STRING,
ARCHIVE_STATUS TYPE STRING,
ARCHIVE_FLUD TYPE STRING,
REJECTION TYPE STRING,
ARCHIVEKEY TYPE STRING,
ARCHIVEOFS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKK_STR_ARC_PRENOTE_ARCHKEY_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_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-MANDT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-BKKRS sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-ACNUM_INT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-PRENOTE_ID_INT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-RELEASE_FLAG sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-PRENOTE_TYPE_ID sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-PRENOTE_REF_NO sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-VALID_FROM sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-VALID_TO sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-STATUS sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-PRENOTE_AMOUNT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-PRENOTE_CURR sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-ACUR sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-A_AMOUNT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-NA_CURR sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-NA_AMOUNT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-MEDIUM sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-BUPA_NAME sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-PAYM_RECEIPIENT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-SHORT_TEXT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-LONG_TEXT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_LIMIT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_ACLCK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_BPLCK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_NAMECHECK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_DIRDEB sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_COLAUTH sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XCHK_CUST_CHECK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XERR_LIMIT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XERR_ACLCK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XERR_BPLCK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XERR_NAMECHECK sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XERR_DIRDEB sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-XERR_COLAUTH sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-DOCNO sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-POSNO sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-CRUSR sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-CRDAT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-CRTIM sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-CHUSR sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-CHDAT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-CHTIM sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-RLUSR sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-RLDAT sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-RLTIM sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-ARCHIVE_STATUS sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-ARCHIVE_FLUD sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-REJECTION sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-ARCHIVEKEY sy-vline 
WA_BKK_STR_ARC_PRENOTE_ARCHKEY_STR-ARCHIVEOFS sy-vline      INTO ld_text SEPARATED BY SPACE.

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