ABAP Select data from SAP table CPPDGCLFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPPDGCLFN
*  INTO TABLE @DATA(IT_CPPDGCLFN2).
*--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_CPPDGCLFN INDEX 1 INTO DATA(WA_CPPDGCLFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPPDGCLFN>-MANDT = 1.
<CPPDGCLFN>-CMPLRQRSLTUUID = 1.
<CPPDGCLFN>-ACTIVECMPLRQRSLTUUID = 1.
<CPPDGCLFN>-CMPLRQRSLTDRAFTORACTIVEUUID = 1.
<CPPDGCLFN>-COMPLIANCEREQUIREMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPPDGCLFN-CHMLCMPLNCINFOUUID, sy-vline,
  WA_CPPDGCLFN-CMPLRQVERSUUID, sy-vline,
  WA_CPPDGCLFN-CMPLRQVERSNAME, sy-vline,
  WA_CPPDGCLFN-CMPLRQRSLTPROCESSINGSTATUS, sy-vline,
  WA_CPPDGCLFN-CMPLRQRSLTPROCESSORNAME, sy-vline,
  WA_CPPDGCLFN-PROCESSOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPPDGCLFN 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_CPPDGCLFN 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_CPPDGCLFN INTO WA_CPPDGCLFN.


*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 PROCESSOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPPDGCLFN-PROCESSOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPPDGCLFN-PROCESSOR.
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_CPPDGCLFN_STR, 
MANDT TYPE STRING,
CMPLRQRSLTUUID TYPE STRING,
ACTIVECMPLRQRSLTUUID TYPE STRING,
CMPLRQRSLTDRAFTORACTIVEUUID TYPE STRING,
COMPLIANCEREQUIREMENT TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
CMPLRQVERSUUID TYPE STRING,
CMPLRQVERSNAME TYPE STRING,
CMPLRQRSLTPROCESSINGSTATUS TYPE STRING,
CMPLRQRSLTPROCESSORNAME TYPE STRING,
PROCESSOR TYPE STRING,
CMPLRQRSLTMANUALSTATUS TYPE STRING,
CMPLRQRSLTDNGRSGDSBSCDETSUUID TYPE STRING,
ENCLOSUREVARIANT TYPE STRING,
DNGRSGDSDESCTMPLISOVERWRITTEN TYPE STRING,
BASICCLASSFCTNISOVERWRITTEN TYPE STRING,
DANGEROUSGOODDESCFORDOCUMENTS TYPE STRING,
DNGRSGOODSMODEOFTRANSPORT TYPE STRING,
DNGRSGOODSMODEOFTRANSPORTNAME TYPE STRING,
HASDRAFTENTITY TYPE STRING,
ISACTIVEENTITY TYPE STRING,
CMPLRQPATTERN TYPE STRING,
DNGRSGOODDESCFORDOCSTMPLTEXT TYPE STRING,
DNGRSGOODDESCFORPACKGGTMPLTEXT TYPE STRING,
DNGRSGOODHAZARDNOTESTMPLTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPPDGCLFN_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_CPPDGCLFN_STR-MANDT sy-vline 
WA_CPPDGCLFN_STR-CMPLRQRSLTUUID sy-vline 
WA_CPPDGCLFN_STR-ACTIVECMPLRQRSLTUUID sy-vline 
WA_CPPDGCLFN_STR-CMPLRQRSLTDRAFTORACTIVEUUID sy-vline 
WA_CPPDGCLFN_STR-COMPLIANCEREQUIREMENT sy-vline 
WA_CPPDGCLFN_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CPPDGCLFN_STR-CMPLRQVERSUUID sy-vline 
WA_CPPDGCLFN_STR-CMPLRQVERSNAME sy-vline 
WA_CPPDGCLFN_STR-CMPLRQRSLTPROCESSINGSTATUS sy-vline 
WA_CPPDGCLFN_STR-CMPLRQRSLTPROCESSORNAME sy-vline 
WA_CPPDGCLFN_STR-PROCESSOR sy-vline 
WA_CPPDGCLFN_STR-CMPLRQRSLTMANUALSTATUS sy-vline 
WA_CPPDGCLFN_STR-CMPLRQRSLTDNGRSGDSBSCDETSUUID sy-vline 
WA_CPPDGCLFN_STR-ENCLOSUREVARIANT sy-vline 
WA_CPPDGCLFN_STR-DNGRSGDSDESCTMPLISOVERWRITTEN sy-vline 
WA_CPPDGCLFN_STR-BASICCLASSFCTNISOVERWRITTEN sy-vline 
WA_CPPDGCLFN_STR-DANGEROUSGOODDESCFORDOCUMENTS sy-vline 
WA_CPPDGCLFN_STR-DNGRSGOODSMODEOFTRANSPORT sy-vline 
WA_CPPDGCLFN_STR-DNGRSGOODSMODEOFTRANSPORTNAME sy-vline 
WA_CPPDGCLFN_STR-HASDRAFTENTITY sy-vline 
WA_CPPDGCLFN_STR-ISACTIVEENTITY sy-vline 
WA_CPPDGCLFN_STR-CMPLRQPATTERN sy-vline 
WA_CPPDGCLFN_STR-DNGRSGOODDESCFORDOCSTMPLTEXT sy-vline 
WA_CPPDGCLFN_STR-DNGRSGOODDESCFORPACKGGTMPLTEXT sy-vline 
WA_CPPDGCLFN_STR-DNGRSGOODHAZARDNOTESTMPLTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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