ABAP Select data from SAP table CMDQDIMNCATTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMDQDIMNCATTP
*  INTO TABLE @DATA(IT_CMDQDIMNCATTP2).
*--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_CMDQDIMNCATTP INDEX 1 INTO DATA(WA_CMDQDIMNCATTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMDQDIMNCATTP>-MANDT = 1.
<CMDQDIMNCATTP>-MDQLTYDIMENSIONCATEGORYUUID = 1.
<CMDQDIMNCATTP>-MDQLTYDIMENSIONCATEGORY = 1.
<CMDQDIMNCATTP>-MDQLTYEVALTARGETTHRESHOLD = 1.
<CMDQDIMNCATTP>-MDQLTYEVALWARNINGTHRESHOLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMDQDIMNCATTP-MDQLTYEVALCRITICALTHRESHOLD, sy-vline,
  WA_CMDQDIMNCATTP-MDQLTYDIMNCATEGORYSCORE, sy-vline,
  WA_CMDQDIMNCATTP-MDQLTYDIMNCATSCORECRITICALITY, sy-vline,
  WA_CMDQDIMNCATTP-MDQLTYDIMNCATCRTEATDATETIME, sy-vline,
  WA_CMDQDIMNCATTP-MDQLTYDIMNCATCRTEDBYUSER, sy-vline,
  WA_CMDQDIMNCATTP-MDQLTYDIMNCATCRTEDBYUSERNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMDQDIMNCATTP 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_CMDQDIMNCATTP 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_CMDQDIMNCATTP INTO WA_CMDQDIMNCATTP.


*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_CMDQDIMNCATTP_STR, 
MANDT TYPE STRING,
MDQLTYDIMENSIONCATEGORYUUID TYPE STRING,
MDQLTYDIMENSIONCATEGORY TYPE STRING,
MDQLTYEVALTARGETTHRESHOLD TYPE STRING,
MDQLTYEVALWARNINGTHRESHOLD TYPE STRING,
MDQLTYEVALCRITICALTHRESHOLD TYPE STRING,
MDQLTYDIMNCATEGORYSCORE TYPE STRING,
MDQLTYDIMNCATSCORECRITICALITY TYPE STRING,
MDQLTYDIMNCATCRTEATDATETIME TYPE STRING,
MDQLTYDIMNCATCRTEDBYUSER TYPE STRING,
MDQLTYDIMNCATCRTEDBYUSERNAME TYPE STRING,
MDQLTYDIMNCATUPDTDATDATETIME TYPE STRING,
MDQLTYDIMNCATUPDTDBYUSER TYPE STRING,
MDQLTYDIMNCATUPDTDBYUSERNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMDQDIMNCATTP_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_CMDQDIMNCATTP_STR-MANDT sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMENSIONCATEGORYUUID sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMENSIONCATEGORY sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYEVALTARGETTHRESHOLD sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYEVALWARNINGTHRESHOLD sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYEVALCRITICALTHRESHOLD sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATEGORYSCORE sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATSCORECRITICALITY sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATCRTEATDATETIME sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATCRTEDBYUSER sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATCRTEDBYUSERNAME sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATUPDTDATDATETIME sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATUPDTDBYUSER sy-vline 
WA_CMDQDIMNCATTP_STR-MDQLTYDIMNCATUPDTDBYUSERNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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