ABAP Select data from SAP table BAPIMEDDOC_DOCPART into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIMEDDOC_DOCPART
*  INTO TABLE @DATA(IT_BAPIMEDDOC_DOCPART2).
*--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_BAPIMEDDOC_DOCPART INDEX 1 INTO DATA(WA_BAPIMEDDOC_DOCPART2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIMEDDOC_DOCPART>-DOCUMENT_OU = 1.
<BAPIMEDDOC_DOCPART>-EMPLOYEE_RESP = 1.
<BAPIMEDDOC_DOCPART>-DOCUMENT_CATEGORY = 1.
<BAPIMEDDOC_DOCPART>-DOCUMENT_CATVERSION = 1.
<BAPIMEDDOC_DOCPART>-SPECIAL_IND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIMEDDOC_DOCPART-DOCUMENT_DATE, sy-vline,
  WA_BAPIMEDDOC_DOCPART-DOCUMENT_TIME, sy-vline,
  WA_BAPIMEDDOC_DOCPART-DESCRIPTION, sy-vline,
  WA_BAPIMEDDOC_DOCPART-STATUSINTERN, sy-vline,
  WA_BAPIMEDDOC_DOCPART-LOGFIELD, sy-vline,
  WA_BAPIMEDDOC_DOCPART-PRIORITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIMEDDOC_DOCPART 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_BAPIMEDDOC_DOCPART 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_BAPIMEDDOC_DOCPART INTO WA_BAPIMEDDOC_DOCPART.


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

*Conversion exit ALPHA, internal->external for field EMPLOYEE_RESP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMEDDOC_DOCPART-EMPLOYEE_RESP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMEDDOC_DOCPART-EMPLOYEE_RESP.
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_BAPIMEDDOC_DOCPART_STR, 
DOCUMENT_OU TYPE STRING,
EMPLOYEE_RESP TYPE STRING,
DOCUMENT_CATEGORY TYPE STRING,
DOCUMENT_CATVERSION TYPE STRING,
SPECIAL_IND TYPE STRING,
DOCUMENT_DATE TYPE STRING,
DOCUMENT_TIME TYPE STRING,
DESCRIPTION TYPE STRING,
STATUSINTERN TYPE STRING,
LOGFIELD TYPE STRING,
PRIORITY TYPE STRING,
AUTHORITYGROUP TYPE STRING,
USERNAME TYPE STRING,
DOCFILE1 TYPE STRING,
WSAPPLICATION1 TYPE STRING,
USERDEFINED1 TYPE STRING,
USERDEFINED2 TYPE STRING,
USERDEFINED3 TYPE STRING,
USERDEFINED4 TYPE STRING,
MICROFILM TYPE STRING,
ROLLNUMBER TYPE STRING,
ALBUM TYPE STRING,
EXTNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIMEDDOC_DOCPART_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_BAPIMEDDOC_DOCPART_STR-DOCUMENT_OU sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-EMPLOYEE_RESP sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-DOCUMENT_CATEGORY sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-DOCUMENT_CATVERSION sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-SPECIAL_IND sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-DOCUMENT_DATE sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-DOCUMENT_TIME sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-DESCRIPTION sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-STATUSINTERN sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-LOGFIELD sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-PRIORITY sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-AUTHORITYGROUP sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-USERNAME sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-DOCFILE1 sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-WSAPPLICATION1 sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-USERDEFINED1 sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-USERDEFINED2 sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-USERDEFINED3 sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-USERDEFINED4 sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-MICROFILM sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-ROLLNUMBER sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-ALBUM sy-vline 
WA_BAPIMEDDOC_DOCPART_STR-EXTNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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