ABAP Select data from SAP table CEXISTPRCPROD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEXISTPRCPROD
*  INTO TABLE @DATA(IT_CEXISTPRCPROD2).
*--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_CEXISTPRCPROD INDEX 1 INTO DATA(WA_CEXISTPRCPROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEXISTPRCPROD>-MANDT = 1.
<CEXISTPRCPROD>-PRODUCT = 1.
<CEXISTPRCPROD>-SALESPRODUCT = 1.
<CEXISTPRCPROD>-PRODUCTDESCRIPTION = 1.
<CEXISTPRCPROD>-BASEUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEXISTPRCPROD-PRODUCTSTANDARDID, sy-vline,
  WA_CEXISTPRCPROD-LOGISTICALPRODUCTCATEGORY, sy-vline,
  WA_CEXISTPRCPROD-PURCHASEORDERUNIT, sy-vline,
  WA_CEXISTPRCPROD-PURCHASEORDERUNITNAME, sy-vline,
  WA_CEXISTPRCPROD-ORDERTOBASEQUANTITYDNMNTR, sy-vline,
  WA_CEXISTPRCPROD-ORDERTOBASEQUANTITYNMRTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEXISTPRCPROD 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_CEXISTPRCPROD 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_CEXISTPRCPROD INTO WA_CEXISTPRCPROD.


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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field SALESPRODUCTBASEUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CEXISTPRCPROD-SALESPRODUCTBASEUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEXISTPRCPROD-SALESPRODUCTBASEUOM.
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_CEXISTPRCPROD_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
SALESPRODUCT TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
BASEUNIT TYPE STRING,
PRODUCTSTANDARDID TYPE STRING,
LOGISTICALPRODUCTCATEGORY TYPE STRING,
PURCHASEORDERUNIT TYPE STRING,
PURCHASEORDERUNITNAME TYPE STRING,
ORDERTOBASEQUANTITYDNMNTR TYPE STRING,
ORDERTOBASEQUANTITYNMRTR TYPE STRING,
GOODSISSUEUNIT TYPE STRING,
GOODSISSUEUNITNAME TYPE STRING,
GOODSISSUETOBASEQUANTITYDNMNTR TYPE STRING,
GOODSISSUETOBASEQUANTITYNMRTR TYPE STRING,
ORDERTOSALESPRODBASEUOMNMRTR TYPE STRING,
ORDERTOSALESPRODBASEUOMDNMNTR TYPE STRING,
ISSUETOSALESPRODBASEUOMNMRTR TYPE STRING,
ISSUETOSALESPRODBASEUOMDNMNTR TYPE STRING,
SALESPRODUCTBASEUOM TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEXISTPRCPROD_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_CEXISTPRCPROD_STR-MANDT sy-vline 
WA_CEXISTPRCPROD_STR-PRODUCT sy-vline 
WA_CEXISTPRCPROD_STR-SALESPRODUCT sy-vline 
WA_CEXISTPRCPROD_STR-PRODUCTDESCRIPTION sy-vline 
WA_CEXISTPRCPROD_STR-BASEUNIT sy-vline 
WA_CEXISTPRCPROD_STR-PRODUCTSTANDARDID sy-vline 
WA_CEXISTPRCPROD_STR-LOGISTICALPRODUCTCATEGORY sy-vline 
WA_CEXISTPRCPROD_STR-PURCHASEORDERUNIT sy-vline 
WA_CEXISTPRCPROD_STR-PURCHASEORDERUNITNAME sy-vline 
WA_CEXISTPRCPROD_STR-ORDERTOBASEQUANTITYDNMNTR sy-vline 
WA_CEXISTPRCPROD_STR-ORDERTOBASEQUANTITYNMRTR sy-vline 
WA_CEXISTPRCPROD_STR-GOODSISSUEUNIT sy-vline 
WA_CEXISTPRCPROD_STR-GOODSISSUEUNITNAME sy-vline 
WA_CEXISTPRCPROD_STR-GOODSISSUETOBASEQUANTITYDNMNTR sy-vline 
WA_CEXISTPRCPROD_STR-GOODSISSUETOBASEQUANTITYNMRTR sy-vline 
WA_CEXISTPRCPROD_STR-ORDERTOSALESPRODBASEUOMNMRTR sy-vline 
WA_CEXISTPRCPROD_STR-ORDERTOSALESPRODBASEUOMDNMNTR sy-vline 
WA_CEXISTPRCPROD_STR-ISSUETOSALESPRODBASEUOMNMRTR sy-vline 
WA_CEXISTPRCPROD_STR-ISSUETOSALESPRODBASEUOMDNMNTR sy-vline 
WA_CEXISTPRCPROD_STR-SALESPRODUCTBASEUOM sy-vline 
WA_CEXISTPRCPROD_STR-CREATIONDATE sy-vline 
WA_CEXISTPRCPROD_STR-CREATEDBYUSER sy-vline 
WA_CEXISTPRCPROD_STR-LASTCHANGEDATE sy-vline 
WA_CEXISTPRCPROD_STR-LASTCHANGETIME sy-vline 
WA_CEXISTPRCPROD_STR-LASTCHANGEDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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