ABAP Select data from SAP table CPPDGED into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPPDGED
*  INTO TABLE @DATA(IT_CPPDGED2).
*--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_CPPDGED INDEX 1 INTO DATA(WA_CPPDGED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPPDGED>-MANDT = 1.
<CPPDGED>-CHMLCMPLNCINFOUUID = 1.
<CPPDGED>-DESCRIPTIONOFDNGRSGDSPCKG = 1.
<CPPDGED>-DANGEROUSGOODSPACKAGINGCODE = 1.
<CPPDGED>-DESCOFDNGRSGDSPCKGNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPPDGED-DANGEROUSGOODSENCLOSUREQTY, sy-vline,
  WA_CPPDGED-DANGEROUSGOODSENCLOSUREUNIT, sy-vline,
  WA_CPPDGED-DESCOFDNGRSGDSINNERPACKGG, sy-vline,
  WA_CPPDGED-DESCOFDNGRSGDSINNERPACKGGNAME, sy-vline,
  WA_CPPDGED-DNGRSGDSENCLRINNERPACKAGEQTY, sy-vline,
  WA_CPPDGED-DNGRSGDSENCLRINNERPACKAGEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPPDGED 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_CPPDGED 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_CPPDGED INTO WA_CPPDGED.


*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 CUNIT, internal->external for field DANGEROUSGOODSENCLOSUREUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPPDGED-DANGEROUSGOODSENCLOSUREUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPPDGED-DANGEROUSGOODSENCLOSUREUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DNGRSGDSENCLRINNERPACKAGEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPPDGED-DNGRSGDSENCLRINNERPACKAGEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPPDGED-DNGRSGDSENCLRINNERPACKAGEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DANGEROUSGOODSCONTROLTEMPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPPDGED-DANGEROUSGOODSCONTROLTEMPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPPDGED-DANGEROUSGOODSCONTROLTEMPUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DANGEROUSGOODSEMGYTEMPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPPDGED-DANGEROUSGOODSEMGYTEMPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPPDGED-DANGEROUSGOODSEMGYTEMPUNIT.
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_CPPDGED_STR, 
MANDT TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
DESCRIPTIONOFDNGRSGDSPCKG TYPE STRING,
DANGEROUSGOODSPACKAGINGCODE TYPE STRING,
DESCOFDNGRSGDSPCKGNAME TYPE STRING,
DANGEROUSGOODSENCLOSUREQTY TYPE STRING,
DANGEROUSGOODSENCLOSUREUNIT TYPE STRING,
DESCOFDNGRSGDSINNERPACKGG TYPE STRING,
DESCOFDNGRSGDSINNERPACKGGNAME TYPE STRING,
DNGRSGDSENCLRINNERPACKAGEQTY TYPE STRING,
DNGRSGDSENCLRINNERPACKAGEUNIT TYPE STRING,
DNGRSGDSENCLRNMBROFINNERPCKGS TYPE STRING,
DANGEROUSGOODSCONTROLTEMP TYPE STRING,
DANGEROUSGOODSCONTROLTEMPUNIT TYPE STRING,
DANGEROUSGOODSEMERGENCYTEMP TYPE STRING,
DANGEROUSGOODSEMGYTEMPUNIT TYPE STRING,
DNGRSGDSRESPUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPPDGED_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_CPPDGED_STR-MANDT sy-vline 
WA_CPPDGED_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CPPDGED_STR-DESCRIPTIONOFDNGRSGDSPCKG sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSPACKAGINGCODE sy-vline 
WA_CPPDGED_STR-DESCOFDNGRSGDSPCKGNAME sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSENCLOSUREQTY sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSENCLOSUREUNIT sy-vline 
WA_CPPDGED_STR-DESCOFDNGRSGDSINNERPACKGG sy-vline 
WA_CPPDGED_STR-DESCOFDNGRSGDSINNERPACKGGNAME sy-vline 
WA_CPPDGED_STR-DNGRSGDSENCLRINNERPACKAGEQTY sy-vline 
WA_CPPDGED_STR-DNGRSGDSENCLRINNERPACKAGEUNIT sy-vline 
WA_CPPDGED_STR-DNGRSGDSENCLRNMBROFINNERPCKGS sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSCONTROLTEMP sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSCONTROLTEMPUNIT sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSEMERGENCYTEMP sy-vline 
WA_CPPDGED_STR-DANGEROUSGOODSEMGYTEMPUNIT sy-vline 
WA_CPPDGED_STR-DNGRSGDSRESPUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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