ABAP Select data from SAP table CMDHTMPLEFLTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMDHTMPLEFLTR
*  INTO TABLE @DATA(IT_CMDHTMPLEFLTR2).
*--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_CMDHTMPLEFLTR INDEX 1 INTO DATA(WA_CMDHTMPLEFLTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMDHTMPLEFLTR>-MANDT = 1.
<CMDHTMPLEFLTR>-MDHIERTEMPLATE = 1.
<CMDHTMPLEFLTR>-MDHIERTEMPLATEEDGEFILTER = 1.
<CMDHTMPLEFLTR>-LANGUAGE = 1.
<CMDHTMPLEFLTR>-MDHIERTMPLEDGEFILTERNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMDHTMPLEFLTR-MDHIERTMPLEDGEFILTERDESC, sy-vline,
  WA_CMDHTMPLEFLTR-MASTERDATAEDGETYPE, sy-vline,
  WA_CMDHTMPLEFLTR-MASTERDATAPROPERTY, sy-vline,
  WA_CMDHTMPLEFLTR-MDHIERTMPLFILTERISREQUIRED, sy-vline,
  WA_CMDHTMPLEFLTR-MDHIERTMPLFILTERISGLOBAL, sy-vline,
  WA_CMDHTMPLEFLTR-MDHIERTEMPLATELEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMDHTMPLEFLTR 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_CMDHTMPLEFLTR 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_CMDHTMPLEFLTR INTO WA_CMDHTMPLEFLTR.


*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 ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CMDHTMPLEFLTR-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMDHTMPLEFLTR-LANGUAGE.
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_CMDHTMPLEFLTR_STR, 
MANDT TYPE STRING,
MDHIERTEMPLATE TYPE STRING,
MDHIERTEMPLATEEDGEFILTER TYPE STRING,
LANGUAGE TYPE STRING,
MDHIERTMPLEDGEFILTERNAME TYPE STRING,
MDHIERTMPLEDGEFILTERDESC TYPE STRING,
MASTERDATAEDGETYPE TYPE STRING,
MASTERDATAPROPERTY TYPE STRING,
MDHIERTMPLFILTERISREQUIRED TYPE STRING,
MDHIERTMPLFILTERISGLOBAL TYPE STRING,
MDHIERTEMPLATELEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMDHTMPLEFLTR_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_CMDHTMPLEFLTR_STR-MANDT sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTEMPLATE sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTEMPLATEEDGEFILTER sy-vline 
WA_CMDHTMPLEFLTR_STR-LANGUAGE sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTMPLEDGEFILTERNAME sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTMPLEDGEFILTERDESC sy-vline 
WA_CMDHTMPLEFLTR_STR-MASTERDATAEDGETYPE sy-vline 
WA_CMDHTMPLEFLTR_STR-MASTERDATAPROPERTY sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTMPLFILTERISREQUIRED sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTMPLFILTERISGLOBAL sy-vline 
WA_CMDHTMPLEFLTR_STR-MDHIERTEMPLATELEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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