ABAP Select data from SAP table IMDQBSRULECDDTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMDQBSRULECDDTS
*  INTO TABLE @DATA(IT_IMDQBSRULECDDTS2).
*--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_IMDQBSRULECDDTS INDEX 1 INTO DATA(WA_IMDQBSRULECDDTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMDQBSRULECDDTS>-MANDT = 1.
<IMDQBSRULECDDTS>-MDQLTYBUSRULECHANGEDOCUMENT = 1.
<IMDQBSRULECDDTS>-MDQLTYBUSRULECHGDOCDTBSTABLE = 1.
<IMDQBSRULECDDTS>-MDQLTYBUSRULECHGDOCDTBSTBLKEY = 1.
<IMDQBSRULECDDTS>-MDQLTYBUSRULECHGDOCDTBSTBLFLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMDQBSRULECDDTS-MDQLTYBUSRULECHGDOCITMCHGTYPE, sy-vline,
  WA_IMDQBSRULECDDTS-MDQLTYBUSRULECHGDOCCHGGROUP, sy-vline,
  WA_IMDQBSRULECDDTS-MDQLTYBUSRULECHGDOCCHGACTY, sy-vline,
  WA_IMDQBSRULECDDTS-MDQUALITYBUSINESSRULEUUID, sy-vline,
  WA_IMDQBSRULECDDTS-MDQLTYBUSINESSOBJECTTYPECODE, sy-vline,
  WA_IMDQBSRULECDDTS-MDQLTYBUSRULECHGDOCDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMDQBSRULECDDTS 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_IMDQBSRULECDDTS 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_IMDQBSRULECDDTS INTO WA_IMDQBSRULECDDTS.


*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 MDQLTYBUSRULECHANGEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMDQBSRULECDDTS-MDQLTYBUSRULECHANGEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMDQBSRULECDDTS-MDQLTYBUSRULECHANGEDOCUMENT.
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_IMDQBSRULECDDTS_STR, 
MANDT TYPE STRING,
MDQLTYBUSRULECHANGEDOCUMENT TYPE STRING,
MDQLTYBUSRULECHGDOCDTBSTABLE TYPE STRING,
MDQLTYBUSRULECHGDOCDTBSTBLKEY TYPE STRING,
MDQLTYBUSRULECHGDOCDTBSTBLFLD TYPE STRING,
MDQLTYBUSRULECHGDOCITMCHGTYPE TYPE STRING,
MDQLTYBUSRULECHGDOCCHGGROUP TYPE STRING,
MDQLTYBUSRULECHGDOCCHGACTY TYPE STRING,
MDQUALITYBUSINESSRULEUUID TYPE STRING,
MDQLTYBUSINESSOBJECTTYPECODE TYPE STRING,
MDQLTYBUSRULECHGDOCDATETIME TYPE STRING,
USERID TYPE STRING,
MDQLTYBUSRULECHGDOCPREVFLDVAL TYPE STRING,
MDQLTYBUSRULECHGDOCNEWFLDVAL TYPE STRING,
MDQUALITYBUSINESSRULE TYPE STRING,
MDQUALITYBUSINESSRULENAME TYPE STRING,
MDQLTYBUSRULEPREVSTATUS TYPE STRING,
MDQLTYBUSRULENEWSTATUS TYPE STRING,
MDQLTYBUSRULEPREVSEVERITY TYPE STRING,
MDQLTYBUSRULENEWSEVERITY TYPE STRING,
MDQUALITYRULEUSAGETYPE TYPE STRING,
MDQLTYBUSRULEPREVUSAGESTATUS TYPE STRING,
MDQLTYBUSRULENEWUSAGESTATUS TYPE STRING,
MDQLTYBUSRULEPREVBASETABLE TYPE STRING,
MDQLTYBUSRULENEWBASETABLE TYPE STRING,
MDQLTYBUSRULEPREVCHKDFIELD TYPE STRING,
MDQLTYBUSRULENEWCHKDFIELD TYPE STRING,
MDQLTYBUSRULEPREVCHKDFLDTABLE TYPE STRING,
MDQLTYBUSRULENEWCHKDFIELDTABLE TYPE STRING,
MDQLTYBUSRULEPREVOWNER TYPE STRING,
MDQLTYBUSRULENEWOWNER TYPE STRING,
MDQLTYBUSRULEPREVEXPERT TYPE STRING,
MDQLTYBUSRULENEWEXPERT TYPE STRING,
MDQLTYBUSRULEPREVMSGASSGMTTYPE TYPE STRING,
MDQLTYBUSRULENEWMSGASSGMTTYPE TYPE STRING,
MDQLTYMINEDRULEISIMPLEMENTED TYPE STRING,
MDQLTYDIMENSIONUUIDSTRING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMDQBSRULECDDTS_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_IMDQBSRULECDDTS_STR-MANDT sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHANGEDOCUMENT sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCDTBSTABLE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCDTBSTBLKEY sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCDTBSTBLFLD sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCITMCHGTYPE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCCHGGROUP sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCCHGACTY sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQUALITYBUSINESSRULEUUID sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSINESSOBJECTTYPECODE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCDATETIME sy-vline 
WA_IMDQBSRULECDDTS_STR-USERID sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCPREVFLDVAL sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULECHGDOCNEWFLDVAL sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQUALITYBUSINESSRULE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQUALITYBUSINESSRULENAME sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVSTATUS sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWSTATUS sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVSEVERITY sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWSEVERITY sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQUALITYRULEUSAGETYPE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVUSAGESTATUS sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWUSAGESTATUS sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVBASETABLE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWBASETABLE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVCHKDFIELD sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWCHKDFIELD sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVCHKDFLDTABLE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWCHKDFIELDTABLE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVOWNER sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWOWNER sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVEXPERT sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWEXPERT sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULEPREVMSGASSGMTTYPE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYBUSRULENEWMSGASSGMTTYPE sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYMINEDRULEISIMPLEMENTED sy-vline 
WA_IMDQBSRULECDDTS_STR-MDQLTYDIMENSIONUUIDSTRING sy-vline      INTO ld_text SEPARATED BY SPACE.

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