ABAP Select data from SAP table CUPDG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CUPDG
*  INTO TABLE @DATA(IT_CUPDG2).
*--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_CUPDG INDEX 1 INTO DATA(WA_CUPDG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CUPDG>-MANDT = 1.
<CUPDG>-CHMLCMPLNCINFOUUID = 1.
<CUPDG>-PRODUCT = 1.
<CUPDG>-RAWMATERIAL = 1.
<CUPDG>-SITNINSTCEANCHOROBJECTKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CUPDG-PRODUCTGROUP, sy-vline,
  WA_CUPDG-SPECIFICATIONNAVGNLINK, sy-vline,
  WA_CUPDG-SPECIFICATION, sy-vline,
  WA_CUPDG-CHMLCMPLNCINFOCOMBINEDNAME, sy-vline,
  WA_CUPDG-CHMLCMPLNCINTERNALNAME, sy-vline,
  WA_CUPDG-PRODUCTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CUPDG 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_CUPDG 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_CUPDG INTO WA_CUPDG.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CUPDG-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUPDG-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field RAWMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CUPDG-RAWMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUPDG-RAWMATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SPECIFICATIONNAVGNLINK
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_CUPDG-SPECIFICATIONNAVGNLINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUPDG-SPECIFICATIONNAVGNLINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SPECIFICATION
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_CUPDG-SPECIFICATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUPDG-SPECIFICATION.
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_CUPDG_STR, 
MANDT TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
PRODUCT TYPE STRING,
RAWMATERIAL TYPE STRING,
SITNINSTCEANCHOROBJECTKEY TYPE STRING,
PRODUCTGROUP TYPE STRING,
SPECIFICATIONNAVGNLINK TYPE STRING,
SPECIFICATION TYPE STRING,
CHMLCMPLNCINFOCOMBINEDNAME TYPE STRING,
CHMLCMPLNCINTERNALNAME TYPE STRING,
PRODUCTNAME TYPE STRING,
ANALYTICCMPSTNRELEASEDUUID TYPE STRING,
ANALYTICCMPSTNRELEASEDATETIME TYPE STRING,
ISCLOUDSYSTEM TYPE STRING,
DNGRSGDSRESPUNIT TYPE STRING,
CHMLCMPLNCINFONAVGNLINK TYPE STRING,
ANALYTICCMPSTNNAVGNLINKUUID TYPE STRING,
MATLBSDCMPSTNNAVGNLINKUUID TYPE STRING,
PCPHYSPRPTYNAVGNLINKUUID TYPE STRING,
CHMLCMPLNCINFOTYPE TYPE STRING,
CHMLCMPLNCPRODISRESEARCHED TYPE STRING,
MATERIALISSOLD TYPE STRING,
MATERIALISTRANSPORTED TYPE STRING,
MATERIALISSOURCED TYPE STRING,
MATERIALISPRODUCED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CUPDG_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_CUPDG_STR-MANDT sy-vline 
WA_CUPDG_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CUPDG_STR-PRODUCT sy-vline 
WA_CUPDG_STR-RAWMATERIAL sy-vline 
WA_CUPDG_STR-SITNINSTCEANCHOROBJECTKEY sy-vline 
WA_CUPDG_STR-PRODUCTGROUP sy-vline 
WA_CUPDG_STR-SPECIFICATIONNAVGNLINK sy-vline 
WA_CUPDG_STR-SPECIFICATION sy-vline 
WA_CUPDG_STR-CHMLCMPLNCINFOCOMBINEDNAME sy-vline 
WA_CUPDG_STR-CHMLCMPLNCINTERNALNAME sy-vline 
WA_CUPDG_STR-PRODUCTNAME sy-vline 
WA_CUPDG_STR-ANALYTICCMPSTNRELEASEDUUID sy-vline 
WA_CUPDG_STR-ANALYTICCMPSTNRELEASEDATETIME sy-vline 
WA_CUPDG_STR-ISCLOUDSYSTEM sy-vline 
WA_CUPDG_STR-DNGRSGDSRESPUNIT sy-vline 
WA_CUPDG_STR-CHMLCMPLNCINFONAVGNLINK sy-vline 
WA_CUPDG_STR-ANALYTICCMPSTNNAVGNLINKUUID sy-vline 
WA_CUPDG_STR-MATLBSDCMPSTNNAVGNLINKUUID sy-vline 
WA_CUPDG_STR-PCPHYSPRPTYNAVGNLINKUUID sy-vline 
WA_CUPDG_STR-CHMLCMPLNCINFOTYPE sy-vline 
WA_CUPDG_STR-CHMLCMPLNCPRODISRESEARCHED sy-vline 
WA_CUPDG_STR-MATERIALISSOLD sy-vline 
WA_CUPDG_STR-MATERIALISTRANSPORTED sy-vline 
WA_CUPDG_STR-MATERIALISSOURCED sy-vline 
WA_CUPDG_STR-MATERIALISPRODUCED sy-vline      INTO ld_text SEPARATED BY SPACE.

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