ABAP Select data from SAP table DGTEXCEPT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DGTEXCEPT
*  INTO TABLE @DATA(IT_DGTEXCEPT2).
*--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_DGTEXCEPT INDEX 1 INTO DATA(WA_DGTEXCEPT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DGTEXCEPT>-MANDT = 1.
<DGTEXCEPT>-LWDG = 1.
<DGTEXCEPT>-EXCEPTID = 1.
<DGTEXCEPT>-VERSION = 1.
<DGTEXCEPT>-DELFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DGTEXCEPT-BLOCKEDFLG, sy-vline,
  WA_DGTEXCEPT-DISTRIBFLG, sy-vline,
  WA_DGTEXCEPT-CRDAT, sy-vline,
  WA_DGTEXCEPT-CRNAM, sy-vline,
  WA_DGTEXCEPT-UPDDAT, sy-vline,
  WA_DGTEXCEPT-UPDNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DGTEXCEPT 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_DGTEXCEPT 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_DGTEXCEPT INTO WA_DGTEXCEPT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DGTEXCEPT_STR, 
MANDT TYPE STRING,
LWDG TYPE STRING,
EXCEPTID TYPE STRING,
VERSION TYPE STRING,
DELFLG TYPE STRING,
BLOCKEDFLG TYPE STRING,
DISTRIBFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
EXCEPT_VALFR TYPE STRING,
EXCEPT_VALTO TYPE STRING,
ENTPR_SPECFLG TYPE STRING,
UNNO_SPECFLG TYPE STRING,
CNTRY_SPECFLG TYPE STRING,
EXCEPTPROFILE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DGTEXCEPT_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_DGTEXCEPT_STR-MANDT sy-vline 
WA_DGTEXCEPT_STR-LWDG sy-vline 
WA_DGTEXCEPT_STR-EXCEPTID sy-vline 
WA_DGTEXCEPT_STR-VERSION sy-vline 
WA_DGTEXCEPT_STR-DELFLG sy-vline 
WA_DGTEXCEPT_STR-BLOCKEDFLG sy-vline 
WA_DGTEXCEPT_STR-DISTRIBFLG sy-vline 
WA_DGTEXCEPT_STR-CRDAT sy-vline 
WA_DGTEXCEPT_STR-CRNAM sy-vline 
WA_DGTEXCEPT_STR-UPDDAT sy-vline 
WA_DGTEXCEPT_STR-UPDNAM sy-vline 
WA_DGTEXCEPT_STR-EXCEPT_VALFR sy-vline 
WA_DGTEXCEPT_STR-EXCEPT_VALTO sy-vline 
WA_DGTEXCEPT_STR-ENTPR_SPECFLG sy-vline 
WA_DGTEXCEPT_STR-UNNO_SPECFLG sy-vline 
WA_DGTEXCEPT_STR-CNTRY_SPECFLG sy-vline 
WA_DGTEXCEPT_STR-EXCEPTPROFILE sy-vline      INTO ld_text SEPARATED BY SPACE.

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