ABAP Select data from SAP table BAPI_DOC_DRAD_KEYS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI_DOC_DRAD_KEYS 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_DOC_DRAD_KEYS. 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_DOC_DRAD_KEYS 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_DOC_DRAD_KEYS TYPE STANDARD TABLE OF BAPI_DOC_DRAD_KEYS,
      WA_BAPI_DOC_DRAD_KEYS TYPE BAPI_DOC_DRAD_KEYS,
      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_DOC_DRAD_KEYS> TYPE BAPI_DOC_DRAD_KEYS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_DOC_DRAD_KEYS
*  INTO TABLE @DATA(IT_BAPI_DOC_DRAD_KEYS2).
*--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_DOC_DRAD_KEYS INDEX 1 INTO DATA(WA_BAPI_DOC_DRAD_KEYS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_DOC_DRAD_KEYS>-DELETEVALUE = 1.
<BAPI_DOC_DRAD_KEYS>-OBJECTTYPE = 1.
<BAPI_DOC_DRAD_KEYS>-DELETEVALUE = 1.
<BAPI_DOC_DRAD_KEYS>-OBJECTKEY = 1.
<BAPI_DOC_DRAD_KEYS>-OBJECTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_DOC_DRAD_KEYS-OBJECTKEY, sy-vline,
  WA_BAPI_DOC_DRAD_KEYS-DOCUMENTDIRECTION, sy-vline,
  WA_BAPI_DOC_DRAD_KEYS-DOCUMENTDIRECTION, sy-vline,
  WA_BAPI_DOC_DRAD_KEYS-OBJECTDESCRIPTION, sy-vline,
  WA_BAPI_DOC_DRAD_KEYS-OBJECTLINKID, sy-vline,
  WA_BAPI_DOC_DRAD_KEYS-OBJECTDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_DOC_DRAD_KEYS 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_DOC_DRAD_KEYS 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_DOC_DRAD_KEYS INTO WA_BAPI_DOC_DRAD_KEYS.


*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 DOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_DOC_DRAD_KEYS-DOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_DOC_DRAD_KEYS-DOCUMENTNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_DOC_DRAD_KEYS-DOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_DOC_DRAD_KEYS-DOCUMENTNUMBER.
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_DOC_DRAD_KEYS_STR, 
DELETEVALUE TYPE STRING,
OBJECTTYPE TYPE STRING,
DELETEVALUE TYPE STRING,
OBJECTKEY TYPE STRING,
OBJECTTYPE TYPE STRING,
OBJECTKEY TYPE STRING,
DOCUMENTDIRECTION TYPE STRING,
DOCUMENTDIRECTION TYPE STRING,
OBJECTDESCRIPTION TYPE STRING,
OBJECTLINKID TYPE STRING,
OBJECTDESCRIPTION TYPE STRING,
OBJECTLINKID TYPE STRING,
ADDOBJECTTYPE TYPE STRING,
ADDOBJECTKEY TYPE STRING,
ADDOBJECTTYPE TYPE STRING,
CAD_POS TYPE STRING,
ADDOBJECTKEY TYPE STRING,
CAD_POS TYPE STRING,
DOCUMENTTYPE TYPE STRING,
DOCUMENTTYPE TYPE STRING,
DOCUMENTNUMBER TYPE STRING,
DOCUMENTNUMBER TYPE STRING,
DOCUMENTVERSION TYPE STRING,
DOCUMENTPART TYPE STRING,
DOCUMENTVERSION TYPE STRING,
TAB_INDEX TYPE STRING,
DOCUMENTPART TYPE STRING,
TAB_INDEX TYPE STRING,
OBJECTKEY_LONG TYPE STRING,
ADDOBJECTKEY_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_DOC_DRAD_KEYS_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_DOC_DRAD_KEYS_STR-DELETEVALUE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTTYPE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DELETEVALUE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTKEY sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTTYPE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTKEY sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTDIRECTION sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTDIRECTION sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTDESCRIPTION sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTLINKID sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTDESCRIPTION sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTLINKID sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-ADDOBJECTTYPE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-ADDOBJECTKEY sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-ADDOBJECTTYPE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-CAD_POS sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-ADDOBJECTKEY sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-CAD_POS sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTTYPE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTTYPE sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTNUMBER sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTNUMBER sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTVERSION sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTPART sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTVERSION sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-TAB_INDEX sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-DOCUMENTPART sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-TAB_INDEX sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-OBJECTKEY_LONG sy-vline 
WA_BAPI_DOC_DRAD_KEYS_STR-ADDOBJECTKEY_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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