ABAP Select data from SAP table CLISTCNDNPRODUCT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLISTCNDNPRODUCT
*  INTO TABLE @DATA(IT_CLISTCNDNPRODUCT2).
*--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_CLISTCNDNPRODUCT INDEX 1 INTO DATA(WA_CLISTCNDNPRODUCT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLISTCNDNPRODUCT>-MANDT = 1.
<CLISTCNDNPRODUCT>-PRODUCT = 1.
<CLISTCNDNPRODUCT>-PRODUCTDESCRIPTION = 1.
<CLISTCNDNPRODUCT>-INDUSTRYSECTOR = 1.
<CLISTCNDNPRODUCT>-PRODUCTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLISTCNDNPRODUCT-PRODUCTGROUP, sy-vline,
  WA_CLISTCNDNPRODUCT-BASEUNIT, sy-vline,
  WA_CLISTCNDNPRODUCT-GROSSWEIGHT, sy-vline,
  WA_CLISTCNDNPRODUCT-NETWEIGHT, sy-vline,
  WA_CLISTCNDNPRODUCT-WEIGHTUNIT, sy-vline,
  WA_CLISTCNDNPRODUCT-PRODUCTSTANDARDID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLISTCNDNPRODUCT 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_CLISTCNDNPRODUCT 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_CLISTCNDNPRODUCT INTO WA_CLISTCNDNPRODUCT.


*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_CLISTCNDNPRODUCT-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLISTCNDNPRODUCT-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit EAN11, internal->external for field PRODUCTSTANDARDID
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_CLISTCNDNPRODUCT-PRODUCTSTANDARDID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLISTCNDNPRODUCT-PRODUCTSTANDARDID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MANUFACTURERNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLISTCNDNPRODUCT-MANUFACTURERNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLISTCNDNPRODUCT-MANUFACTURERNUMBER.
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_CLISTCNDNPRODUCT_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
INDUSTRYSECTOR TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTGROUP TYPE STRING,
BASEUNIT TYPE STRING,
GROSSWEIGHT TYPE STRING,
NETWEIGHT TYPE STRING,
WEIGHTUNIT TYPE STRING,
PRODUCTSTANDARDID TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDBYUSERNAME TYPE STRING,
PRODUCTCATEGORY TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBATCHMANAGEMENTREQUIRED TYPE STRING,
MANUFACTURERNUMBER TYPE STRING,
PRODUCTMANUFACTURERNUMBER TYPE STRING,
HASEMPTIESBOM TYPE STRING,
PRODUCTIMAGEURL TYPE STRING,
STORELISTINGPROCEDURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLISTCNDNPRODUCT_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_CLISTCNDNPRODUCT_STR-MANDT sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCT sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTDESCRIPTION sy-vline 
WA_CLISTCNDNPRODUCT_STR-INDUSTRYSECTOR sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTTYPE sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTGROUP sy-vline 
WA_CLISTCNDNPRODUCT_STR-BASEUNIT sy-vline 
WA_CLISTCNDNPRODUCT_STR-GROSSWEIGHT sy-vline 
WA_CLISTCNDNPRODUCT_STR-NETWEIGHT sy-vline 
WA_CLISTCNDNPRODUCT_STR-WEIGHTUNIT sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTSTANDARDID sy-vline 
WA_CLISTCNDNPRODUCT_STR-CREATIONDATE sy-vline 
WA_CLISTCNDNPRODUCT_STR-CREATEDBYUSER sy-vline 
WA_CLISTCNDNPRODUCT_STR-CREATEDBYUSERNAME sy-vline 
WA_CLISTCNDNPRODUCT_STR-LASTCHANGEDATE sy-vline 
WA_CLISTCNDNPRODUCT_STR-LASTCHANGETIME sy-vline 
WA_CLISTCNDNPRODUCT_STR-LASTCHANGEDATETIME sy-vline 
WA_CLISTCNDNPRODUCT_STR-LASTCHANGEDBYUSER sy-vline 
WA_CLISTCNDNPRODUCT_STR-LASTCHANGEDBYUSERNAME sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTCATEGORY sy-vline 
WA_CLISTCNDNPRODUCT_STR-AUTHORIZATIONGROUP sy-vline 
WA_CLISTCNDNPRODUCT_STR-ISBATCHMANAGEMENTREQUIRED sy-vline 
WA_CLISTCNDNPRODUCT_STR-MANUFACTURERNUMBER sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTMANUFACTURERNUMBER sy-vline 
WA_CLISTCNDNPRODUCT_STR-HASEMPTIESBOM sy-vline 
WA_CLISTCNDNPRODUCT_STR-PRODUCTIMAGEURL sy-vline 
WA_CLISTCNDNPRODUCT_STR-STORELISTINGPROCEDURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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