ABAP Select data from SAP table CMDQRULEXPTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMDQRULEXPTP
*  INTO TABLE @DATA(IT_CMDQRULEXPTP2).
*--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_CMDQRULEXPTP INDEX 1 INTO DATA(WA_CMDQRULEXPTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMDQRULEXPTP>-MANDT = 1.
<CMDQRULEXPTP>-MDQLTYRULEEXPORTUUID = 1.
<CMDQRULEXPTP>-MDQLTYRULEEXPORT = 1.
<CMDQRULEXPTP>-MDQLTYRULEEXPORTNAME = 1.
<CMDQRULEXPTP>-MDQLTYBUSINESSOBJECTTYPECODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMDQRULEXPTP-MDQLTYRULEEXPORTTEXT, sy-vline,
  WA_CMDQRULEXPTP-MDQLTYRULEEXPORTSTATUS, sy-vline,
  WA_CMDQRULEXPTP-MDQLTYRULEEXPRTSTSCRITICALITY, sy-vline,
  WA_CMDQRULEXPTP-MDQLTYRULEEXPORTCREATEDBYUSER, sy-vline,
  WA_CMDQRULEXPTP-MDQLTYRULEEXPRTCRTNDATETIME, sy-vline,
  WA_CMDQRULEXPTP-MDQLTYRULEEXPORTCHANGEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMDQRULEXPTP 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_CMDQRULEXPTP 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_CMDQRULEXPTP INTO WA_CMDQRULEXPTP.


*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 MDQLTYRULEEXPORT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMDQRULEXPTP-MDQLTYRULEEXPORT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMDQRULEXPTP-MDQLTYRULEEXPORT.
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_CMDQRULEXPTP_STR, 
MANDT TYPE STRING,
MDQLTYRULEEXPORTUUID TYPE STRING,
MDQLTYRULEEXPORT TYPE STRING,
MDQLTYRULEEXPORTNAME TYPE STRING,
MDQLTYBUSINESSOBJECTTYPECODE TYPE STRING,
MDQLTYRULEEXPORTTEXT TYPE STRING,
MDQLTYRULEEXPORTSTATUS TYPE STRING,
MDQLTYRULEEXPRTSTSCRITICALITY TYPE STRING,
MDQLTYRULEEXPORTCREATEDBYUSER TYPE STRING,
MDQLTYRULEEXPRTCRTNDATETIME TYPE STRING,
MDQLTYRULEEXPORTCHANGEDBYUSER TYPE STRING,
MDQLTYRULEEXPORTCHANGEDATETIME TYPE STRING,
MDQLTYRULEEXPRTCOMPLETEDBYUSER TYPE STRING,
MDQLTYRULEEXPRTCOMPLTNDATETIME TYPE STRING,
NMBROFMDQLTYEXPORTEDRULES TYPE STRING,
NMBROFSELDMDQLTYEXPORTEDRULES TYPE STRING,
MDQLTYRULEEXPORTHASNOFILE TYPE STRING,
MDQLTYRULEEXPORTVALIDATIONUUID TYPE STRING,
MDQLTYRULEEXPORTLOGHANDLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMDQRULEXPTP_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_CMDQRULEXPTP_STR-MANDT sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTUUID sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORT sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTNAME sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYBUSINESSOBJECTTYPECODE sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTTEXT sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTSTATUS sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPRTSTSCRITICALITY sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTCREATEDBYUSER sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPRTCRTNDATETIME sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTCHANGEDBYUSER sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTCHANGEDATETIME sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPRTCOMPLETEDBYUSER sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPRTCOMPLTNDATETIME sy-vline 
WA_CMDQRULEXPTP_STR-NMBROFMDQLTYEXPORTEDRULES sy-vline 
WA_CMDQRULEXPTP_STR-NMBROFSELDMDQLTYEXPORTEDRULES sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTHASNOFILE sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTVALIDATIONUUID sy-vline 
WA_CMDQRULEXPTP_STR-MDQLTYRULEEXPORTLOGHANDLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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