ABAP Select data from SAP table KMDQMNDRULETP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KMDQMNDRULETP
*  INTO TABLE @DATA(IT_KMDQMNDRULETP2).
*--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_KMDQMNDRULETP INDEX 1 INTO DATA(WA_KMDQMNDRULETP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KMDQMNDRULETP>-MANDT = 1.
<KMDQMNDRULETP>-MDQLTYMINEDRULEUUID = 1.
<KMDQMNDRULETP>-MDQLTYBUSINESSOBJECTTYPECODE = 1.
<KMDQMNDRULETP>-MDQLTYMINEDRULE = 1.
<KMDQMNDRULETP>-MDQLTYRULEMINING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KMDQMNDRULETP-MDQLTYMINEDRULESCPFIELD, sy-vline,
  WA_KMDQMNDRULETP-MDQLTYMINEDRULESCPFIELDTABLE, sy-vline,
  WA_KMDQMNDRULETP-MDQLTYMINEDRULECNDNFIELD, sy-vline,
  WA_KMDQMNDRULETP-MDQLTYMINEDRULECNDNFIELDTABLE, sy-vline,
  WA_KMDQMNDRULETP-MDQLTYMINEDRULECNDNFIELDVALUE, sy-vline,
  WA_KMDQMNDRULETP-MDQLTYMINEDRULEISIMPLEMENTED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KMDQMNDRULETP 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_KMDQMNDRULETP 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_KMDQMNDRULETP INTO WA_KMDQMNDRULETP.


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

*Conversion exit ALPHA, internal->external for field MDQLTYRULEMINING
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KMDQMNDRULETP-MDQLTYRULEMINING
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KMDQMNDRULETP-MDQLTYRULEMINING.
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_KMDQMNDRULETP_STR, 
MANDT TYPE STRING,
MDQLTYMINEDRULEUUID TYPE STRING,
MDQLTYBUSINESSOBJECTTYPECODE TYPE STRING,
MDQLTYMINEDRULE TYPE STRING,
MDQLTYRULEMINING TYPE STRING,
MDQLTYMINEDRULESCPFIELD TYPE STRING,
MDQLTYMINEDRULESCPFIELDTABLE TYPE STRING,
MDQLTYMINEDRULECNDNFIELD TYPE STRING,
MDQLTYMINEDRULECNDNFIELDTABLE TYPE STRING,
MDQLTYMINEDRULECNDNFIELDVALUE TYPE STRING,
MDQLTYMINEDRULEISIMPLEMENTED TYPE STRING,
MDQLTYTECHNICALRULECNDNUUID TYPE STRING,
MDQLTYTECHNICALRULESCOPEUUID TYPE STRING,
MDQLTYMINEDRULERECDVIOLTNCNT TYPE STRING,
MDQLTYMNDRULERECDVIOLTNINPCT TYPE STRING,
MDQLTYMINEDRULERECDCMPLNCCNT TYPE STRING,
MDQLTYMNDRULERECDCMPLNCINPCT TYPE STRING,
MDQLTYMINEDRULERECDNOTRLVTCNT TYPE STRING,
MDQLTYMNDRULERECDNOTRLVTINPCT TYPE STRING,
MDQLTYMINEDRULESTATUS TYPE STRING,
MDQLTYMINEDRULESTSDCSNUSR TYPE STRING,
MDQLTYMINEDRULESTSDCSNDATETIME TYPE STRING,
MDQLTYMINEDRULERECDEVALDTETME TYPE STRING,
MDQLTYMINEDRULECHGDBYUSR TYPE STRING,
MDQLTYMINEDRULECREATIONUSR TYPE STRING,
MDQLTYMINEDRULECREATIONDTETME TYPE STRING,
MDQLTYMINEDRULECHGDDATETIME TYPE STRING,
MDQLTYMINEDRULECHKDFIELDTABLE TYPE STRING,
MDQLTYMINEDRULECHKDFIELD TYPE STRING,
MDQLTYMINEDRULECHKDFIELDVALUE TYPE STRING,
MDQUALITYBUSINESSRULE TYPE STRING,
MDQLTYMINEDRULEEXPRESSION TYPE STRING,
MDQLTYMINEDRULETECHEXPRESSION TYPE STRING,
MDQLTYRULEMNNGTECHDATASEL TYPE STRING,
MDQLTYRULEMININGDATASELECTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KMDQMNDRULETP_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_KMDQMNDRULETP_STR-MANDT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULEUUID sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYBUSINESSOBJECTTYPECODE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYRULEMINING sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULESCPFIELD sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULESCPFIELDTABLE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECNDNFIELD sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECNDNFIELDTABLE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECNDNFIELDVALUE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULEISIMPLEMENTED sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYTECHNICALRULECNDNUUID sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYTECHNICALRULESCOPEUUID sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULERECDVIOLTNCNT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMNDRULERECDVIOLTNINPCT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULERECDCMPLNCCNT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMNDRULERECDCMPLNCINPCT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULERECDNOTRLVTCNT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMNDRULERECDNOTRLVTINPCT sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULESTATUS sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULESTSDCSNUSR sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULESTSDCSNDATETIME sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULERECDEVALDTETME sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECHGDBYUSR sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECREATIONUSR sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECREATIONDTETME sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECHGDDATETIME sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECHKDFIELDTABLE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECHKDFIELD sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULECHKDFIELDVALUE sy-vline 
WA_KMDQMNDRULETP_STR-MDQUALITYBUSINESSRULE sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULEEXPRESSION sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYMINEDRULETECHEXPRESSION sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYRULEMNNGTECHDATASEL sy-vline 
WA_KMDQMNDRULETP_STR-MDQLTYRULEMININGDATASELECTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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