ABAP Select data from SAP table BKK_STR_HOLDS_O 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_HOLDS_O 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_HOLDS_O. 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_HOLDS_O 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_HOLDS_O TYPE STANDARD TABLE OF BKK_STR_HOLDS_O,
      WA_BKK_STR_HOLDS_O TYPE BKK_STR_HOLDS_O,
      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_HOLDS_O> TYPE BKK_STR_HOLDS_O.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKK_STR_HOLDS_O
*  INTO TABLE @DATA(IT_BKK_STR_HOLDS_O2).
*--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_HOLDS_O INDEX 1 INTO DATA(WA_BKK_STR_HOLDS_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKK_STR_HOLDS_O>-WA_HOLDS_O = 1.
<BKK_STR_HOLDS_O>-MANDT = 1.
<BKK_STR_HOLDS_O>-BKKRS = 1.
<BKK_STR_HOLDS_O>-ACNUM_INT = 1.
<BKK_STR_HOLDS_O>-RECORD_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKK_STR_HOLDS_O-GROUP_ID, sy-vline,
  WA_BKK_STR_HOLDS_O-HOLD_TYPE, sy-vline,
  WA_BKK_STR_HOLDS_O-HOLD_CUR, sy-vline,
  WA_BKK_STR_HOLDS_O-HOLD_AMOUNT, sy-vline,
  WA_BKK_STR_HOLDS_O-VALIDFROM, sy-vline,
  WA_BKK_STR_HOLDS_O-VALIDTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKK_STR_HOLDS_O 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_HOLDS_O 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_HOLDS_O INTO WA_BKK_STR_HOLDS_O.


*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_HOLDS_O-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK_STR_HOLDS_O-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_HOLDS_O_STR, 
WA_HOLDS_O TYPE STRING,
MANDT TYPE STRING,
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
RECORD_ID TYPE STRING,
GROUP_ID TYPE STRING,
HOLD_TYPE TYPE STRING,
HOLD_CUR TYPE STRING,
HOLD_AMOUNT TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
REF_NUM TYPE STRING,
REF_TYPE TYPE STRING,
HOLD_ACTIVE TYPE STRING,
ISSUE_DATE TYPE STRING,
REMOVE_DATE TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_DATE TYPE STRING,
DELETE_FLG TYPE STRING,
STATUS 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,END OF T_EKKO_STR.
DATA: WA_BKK_STR_HOLDS_O_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_HOLDS_O_STR-WA_HOLDS_O sy-vline 
WA_BKK_STR_HOLDS_O_STR-MANDT sy-vline 
WA_BKK_STR_HOLDS_O_STR-BKKRS sy-vline 
WA_BKK_STR_HOLDS_O_STR-ACNUM_INT sy-vline 
WA_BKK_STR_HOLDS_O_STR-RECORD_ID sy-vline 
WA_BKK_STR_HOLDS_O_STR-GROUP_ID sy-vline 
WA_BKK_STR_HOLDS_O_STR-HOLD_TYPE sy-vline 
WA_BKK_STR_HOLDS_O_STR-HOLD_CUR sy-vline 
WA_BKK_STR_HOLDS_O_STR-HOLD_AMOUNT sy-vline 
WA_BKK_STR_HOLDS_O_STR-VALIDFROM sy-vline 
WA_BKK_STR_HOLDS_O_STR-VALIDTO sy-vline 
WA_BKK_STR_HOLDS_O_STR-REF_NUM sy-vline 
WA_BKK_STR_HOLDS_O_STR-REF_TYPE sy-vline 
WA_BKK_STR_HOLDS_O_STR-HOLD_ACTIVE sy-vline 
WA_BKK_STR_HOLDS_O_STR-ISSUE_DATE sy-vline 
WA_BKK_STR_HOLDS_O_STR-REMOVE_DATE sy-vline 
WA_BKK_STR_HOLDS_O_STR-CHANGE_USER sy-vline 
WA_BKK_STR_HOLDS_O_STR-CHANGE_DATE sy-vline 
WA_BKK_STR_HOLDS_O_STR-DELETE_FLG sy-vline 
WA_BKK_STR_HOLDS_O_STR-STATUS sy-vline 
WA_BKK_STR_HOLDS_O_STR-DOCNO sy-vline 
WA_BKK_STR_HOLDS_O_STR-POSNO sy-vline 
WA_BKK_STR_HOLDS_O_STR-CRUSR sy-vline 
WA_BKK_STR_HOLDS_O_STR-CRDAT sy-vline 
WA_BKK_STR_HOLDS_O_STR-CRTIM sy-vline 
WA_BKK_STR_HOLDS_O_STR-CHUSR sy-vline 
WA_BKK_STR_HOLDS_O_STR-CHDAT sy-vline 
WA_BKK_STR_HOLDS_O_STR-CHTIM sy-vline 
WA_BKK_STR_HOLDS_O_STR-RLUSR sy-vline 
WA_BKK_STR_HOLDS_O_STR-RLDAT sy-vline 
WA_BKK_STR_HOLDS_O_STR-RLTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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