ABAP Select data from SAP table CPDM_FILTER_STRUCTURE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPDM_FILTER_STRUCTURE
*  INTO TABLE @DATA(IT_CPDM_FILTER_STRUCTURE2).
*--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_CPDM_FILTER_STRUCTURE INDEX 1 INTO DATA(WA_CPDM_FILTER_STRUCTURE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPDM_FILTER_STRUCTURE>-PARENT_LEVEL = 1.
<CPDM_FILTER_STRUCTURE>-ACTUAL_LEVEL = 1.
<CPDM_FILTER_STRUCTURE>-COMPRESS = 1.
<CPDM_FILTER_STRUCTURE>-END_OF_GROUP = 1.
<CPDM_FILTER_STRUCTURE>-PRINT_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPDM_FILTER_STRUCTURE-NODE_TEXT, sy-vline,
  WA_CPDM_FILTER_STRUCTURE-HIGHLIGHT, sy-vline,
  WA_CPDM_FILTER_STRUCTURE-SELECTED, sy-vline,
  WA_CPDM_FILTER_STRUCTURE-SELECTED_BY_ENTRY, sy-vline,
  WA_CPDM_FILTER_STRUCTURE-INVISIBLE, sy-vline,
  WA_CPDM_FILTER_STRUCTURE-INHERIT_SELMODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPDM_FILTER_STRUCTURE 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_CPDM_FILTER_STRUCTURE 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_CPDM_FILTER_STRUCTURE INTO WA_CPDM_FILTER_STRUCTURE.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPDM_FILTER_STRUCTURE-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPDM_FILTER_STRUCTURE-LOGSYS.
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_CPDM_FILTER_STRUCTURE_STR, 
PARENT_LEVEL TYPE STRING,
ACTUAL_LEVEL TYPE STRING,
COMPRESS TYPE STRING,
END_OF_GROUP TYPE STRING,
PRINT_TYPE TYPE STRING,
NODE_TEXT TYPE STRING,
HIGHLIGHT TYPE STRING,
SELECTED TYPE STRING,
SELECTED_BY_ENTRY TYPE STRING,
INVISIBLE TYPE STRING,
INHERIT_SELMODE TYPE STRING,
EXPAND_FLAG TYPE STRING,
TREE_KEY TYPE STRING,
MANDT TYPE STRING,
FILTERNAME TYPE STRING,
RFCDEST TYPE STRING,
LOGOBJTYPE TYPE STRING,
COUNTER TYPE STRING,
LOGSYS TYPE STRING,
OBJECT_TYPE TYPE STRING,
RELATION TYPE STRING,
DOCUMENTTYPE TYPE STRING,
DOCUMENTSTATUS TYPE STRING,
LANGUSTATUS TYPE STRING,
DOCUMENTOBJECT TYPE STRING,
LABORATORY TYPE STRING,
MATERIALTYPE TYPE STRING,
CLASSTYPE TYPE STRING,
PLANT TYPE STRING,
BOM_USAGE TYPE STRING,
CHECK_PROGRAM TYPE STRING,
CHECK_FORM TYPE STRING,
TEXT TYPE STRING,
LIST_LINE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPDM_FILTER_STRUCTURE_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_CPDM_FILTER_STRUCTURE_STR-PARENT_LEVEL sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-ACTUAL_LEVEL sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-COMPRESS sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-END_OF_GROUP sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-PRINT_TYPE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-NODE_TEXT sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-HIGHLIGHT sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-SELECTED sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-SELECTED_BY_ENTRY sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-INVISIBLE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-INHERIT_SELMODE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-EXPAND_FLAG sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-TREE_KEY sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-MANDT sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-FILTERNAME sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-RFCDEST sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-LOGOBJTYPE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-COUNTER sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-LOGSYS sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-OBJECT_TYPE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-RELATION sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-DOCUMENTTYPE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-DOCUMENTSTATUS sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-LANGUSTATUS sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-DOCUMENTOBJECT sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-LABORATORY sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-MATERIALTYPE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-CLASSTYPE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-PLANT sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-BOM_USAGE sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-CHECK_PROGRAM sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-CHECK_FORM sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-TEXT sy-vline 
WA_CPDM_FILTER_STRUCTURE_STR-LIST_LINE sy-vline      INTO ld_text SEPARATED BY SPACE.

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