ABAP Select data from SAP table BDOC_TRACK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BDOC_TRACK
*  INTO TABLE @DATA(IT_BDOC_TRACK2).
*--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_BDOC_TRACK INDEX 1 INTO DATA(WA_BDOC_TRACK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BDOC_TRACK>-MANDT = 1.
<BDOC_TRACK>-UPLOAD_ID = 1.
<BDOC_TRACK>-BLOCKNO = 1.
<BDOC_TRACK>-LOAD_TYPE = 1.
<BDOC_TRACK>-RUNTIMEINF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BDOC_TRACK-CONSUMER, sy-vline,
  WA_BDOC_TRACK-LOG_SYSTEM, sy-vline,
  WA_BDOC_TRACK-OBJNAME, sy-vline,
  WA_BDOC_TRACK-LOADSTART, sy-vline,
  WA_BDOC_TRACK-EXIT1_INT, sy-vline,
  WA_BDOC_TRACK-PROCESSED1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BDOC_TRACK 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_BDOC_TRACK 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_BDOC_TRACK INTO WA_BDOC_TRACK.


*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 LOG_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BDOC_TRACK-LOG_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BDOC_TRACK-LOG_SYSTEM.
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_BDOC_TRACK_STR, 
MANDT TYPE STRING,
UPLOAD_ID TYPE STRING,
BLOCKNO TYPE STRING,
LOAD_TYPE TYPE STRING,
RUNTIMEINF TYPE STRING,
CONSUMER TYPE STRING,
LOG_SYSTEM TYPE STRING,
OBJNAME TYPE STRING,
LOADSTART TYPE STRING,
EXIT1_INT TYPE STRING,
PROCESSED1 TYPE STRING,
CONTROL1 TYPE STRING,
EXIT2_EXT TYPE STRING,
PROCESSED2 TYPE STRING,
CONTROL2 TYPE STRING,
MODULFOUND TYPE STRING,
EXFMNOTNOK TYPE STRING,
XMLFORMAT TYPE STRING,
XMLPARSED TYPE STRING,
NOACTEVENT TYPE STRING,
SENDSTART TYPE STRING,
LASTBLOCK TYPE STRING,
EXTRACTOK TYPE STRING,
DNL_PARAMS TYPE STRING,
CRMUCSYS TYPE STRING,
EXIT3_INT TYPE STRING,
PROCESSED3 TYPE STRING,
CONTROL3 TYPE STRING,
EXTRACT3 TYPE STRING,
FILTERSYNC TYPE STRING,
FILTEROK TYPE STRING,
FILTEREXTR TYPE STRING,
EXIT4_EXT TYPE STRING,
PROCESSED4 TYPE STRING,
NOTSEND4 TYPE STRING,
EXTRACT4 TYPE STRING,
SENDDATA TYPE STRING,
ENDSEND TYPE STRING,
OPERATION TYPE STRING,
ACTSTATINF TYPE STRING,
LSTSTATINF TYPE STRING,
OBJECTTYPE TYPE STRING,
OBJKEY TYPE STRING,
CREDATE TYPE STRING,
CRETIME TYPE STRING,
CHANGDATE TYPE STRING,
CHANGTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BDOC_TRACK_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_BDOC_TRACK_STR-MANDT sy-vline 
WA_BDOC_TRACK_STR-UPLOAD_ID sy-vline 
WA_BDOC_TRACK_STR-BLOCKNO sy-vline 
WA_BDOC_TRACK_STR-LOAD_TYPE sy-vline 
WA_BDOC_TRACK_STR-RUNTIMEINF sy-vline 
WA_BDOC_TRACK_STR-CONSUMER sy-vline 
WA_BDOC_TRACK_STR-LOG_SYSTEM sy-vline 
WA_BDOC_TRACK_STR-OBJNAME sy-vline 
WA_BDOC_TRACK_STR-LOADSTART sy-vline 
WA_BDOC_TRACK_STR-EXIT1_INT sy-vline 
WA_BDOC_TRACK_STR-PROCESSED1 sy-vline 
WA_BDOC_TRACK_STR-CONTROL1 sy-vline 
WA_BDOC_TRACK_STR-EXIT2_EXT sy-vline 
WA_BDOC_TRACK_STR-PROCESSED2 sy-vline 
WA_BDOC_TRACK_STR-CONTROL2 sy-vline 
WA_BDOC_TRACK_STR-MODULFOUND sy-vline 
WA_BDOC_TRACK_STR-EXFMNOTNOK sy-vline 
WA_BDOC_TRACK_STR-XMLFORMAT sy-vline 
WA_BDOC_TRACK_STR-XMLPARSED sy-vline 
WA_BDOC_TRACK_STR-NOACTEVENT sy-vline 
WA_BDOC_TRACK_STR-SENDSTART sy-vline 
WA_BDOC_TRACK_STR-LASTBLOCK sy-vline 
WA_BDOC_TRACK_STR-EXTRACTOK sy-vline 
WA_BDOC_TRACK_STR-DNL_PARAMS sy-vline 
WA_BDOC_TRACK_STR-CRMUCSYS sy-vline 
WA_BDOC_TRACK_STR-EXIT3_INT sy-vline 
WA_BDOC_TRACK_STR-PROCESSED3 sy-vline 
WA_BDOC_TRACK_STR-CONTROL3 sy-vline 
WA_BDOC_TRACK_STR-EXTRACT3 sy-vline 
WA_BDOC_TRACK_STR-FILTERSYNC sy-vline 
WA_BDOC_TRACK_STR-FILTEROK sy-vline 
WA_BDOC_TRACK_STR-FILTEREXTR sy-vline 
WA_BDOC_TRACK_STR-EXIT4_EXT sy-vline 
WA_BDOC_TRACK_STR-PROCESSED4 sy-vline 
WA_BDOC_TRACK_STR-NOTSEND4 sy-vline 
WA_BDOC_TRACK_STR-EXTRACT4 sy-vline 
WA_BDOC_TRACK_STR-SENDDATA sy-vline 
WA_BDOC_TRACK_STR-ENDSEND sy-vline 
WA_BDOC_TRACK_STR-OPERATION sy-vline 
WA_BDOC_TRACK_STR-ACTSTATINF sy-vline 
WA_BDOC_TRACK_STR-LSTSTATINF sy-vline 
WA_BDOC_TRACK_STR-OBJECTTYPE sy-vline 
WA_BDOC_TRACK_STR-OBJKEY sy-vline 
WA_BDOC_TRACK_STR-CREDATE sy-vline 
WA_BDOC_TRACK_STR-CRETIME sy-vline 
WA_BDOC_TRACK_STR-CHANGDATE sy-vline 
WA_BDOC_TRACK_STR-CHANGTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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