ABAP Select data from SAP table CUPDGCLFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CUPDGCLFN
*  INTO TABLE @DATA(IT_CUPDGCLFN2).
*--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_CUPDGCLFN INDEX 1 INTO DATA(WA_CUPDGCLFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CUPDGCLFN>-MANDT = 1.
<CUPDGCLFN>-CMPLRQRSLTUUID = 1.
<CUPDGCLFN>-COMPLIANCEREQUIREMENT = 1.
<CUPDGCLFN>-CHMLCMPLNCINFOUUID = 1.
<CUPDGCLFN>-CMPLRQVERSUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CUPDGCLFN-CMPLRQVERSNAME, sy-vline,
  WA_CUPDGCLFN-CMPLRQRSLTPROCESSINGSTATUS, sy-vline,
  WA_CUPDGCLFN-CMPLRQRSLTPROCESSORNAME, sy-vline,
  WA_CUPDGCLFN-PROCESSOR, sy-vline,
  WA_CUPDGCLFN-CMPLRQRSLTMANUALSTATUS, sy-vline,
  WA_CUPDGCLFN-CMPLRQRSLTRELDCMPLNCSTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CUPDGCLFN 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_CUPDGCLFN 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_CUPDGCLFN INTO WA_CUPDGCLFN.


*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_CUPDGCLFN-PROCESSOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUPDGCLFN-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_CUPDGCLFN_STR, 
MANDT TYPE STRING,
CMPLRQRSLTUUID 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,
CMPLRQRSLTRELDCMPLNCSTS TYPE STRING,
CMPLRQRSLTDNGRSGDSBSCDETSUUID TYPE STRING,
CLASSIFIEDASDANGEROUSGOOD TYPE STRING,
DANGEROUSGOODBASICDESCRIPTION TYPE STRING,
HASDRAFTENTITY TYPE STRING,
ISACTIVEENTITY TYPE STRING,
CMPLRQPATTERN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CUPDGCLFN_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_CUPDGCLFN_STR-MANDT sy-vline 
WA_CUPDGCLFN_STR-CMPLRQRSLTUUID sy-vline 
WA_CUPDGCLFN_STR-COMPLIANCEREQUIREMENT sy-vline 
WA_CUPDGCLFN_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CUPDGCLFN_STR-CMPLRQVERSUUID sy-vline 
WA_CUPDGCLFN_STR-CMPLRQVERSNAME sy-vline 
WA_CUPDGCLFN_STR-CMPLRQRSLTPROCESSINGSTATUS sy-vline 
WA_CUPDGCLFN_STR-CMPLRQRSLTPROCESSORNAME sy-vline 
WA_CUPDGCLFN_STR-PROCESSOR sy-vline 
WA_CUPDGCLFN_STR-CMPLRQRSLTMANUALSTATUS sy-vline 
WA_CUPDGCLFN_STR-CMPLRQRSLTRELDCMPLNCSTS sy-vline 
WA_CUPDGCLFN_STR-CMPLRQRSLTDNGRSGDSBSCDETSUUID sy-vline 
WA_CUPDGCLFN_STR-CLASSIFIEDASDANGEROUSGOOD sy-vline 
WA_CUPDGCLFN_STR-DANGEROUSGOODBASICDESCRIPTION sy-vline 
WA_CUPDGCLFN_STR-HASDRAFTENTITY sy-vline 
WA_CUPDGCLFN_STR-ISACTIVEENTITY sy-vline 
WA_CUPDGCLFN_STR-CMPLRQPATTERN sy-vline      INTO ld_text SEPARATED BY SPACE.

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