ABAP Select data from SAP table CPRODROW into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPRODROW 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 CPRODROW. 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 CPRODROW 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_CPRODROW TYPE STANDARD TABLE OF CPRODROW,
      WA_CPRODROW TYPE CPRODROW,
      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: <CPRODROW> TYPE CPRODROW.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPRODROW
*  INTO TABLE @DATA(IT_CPRODROW2).
*--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_CPRODROW INDEX 1 INTO DATA(WA_CPRODROW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPRODROW>-MANDT = 1.
<CPRODROW>-PMRPSIMULATION = 1.
<CPRODROW>-PRODUCT = 1.
<CPRODROW>-PLANT = 1.
<CPRODROW>-MRPAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPRODROW-PMRPSUPPLYGROUP, sy-vline,
  WA_CPRODROW-PMRPSUPPLYGROUPCATEGORY, sy-vline,
  WA_CPRODROW-PMRPSOURCEOFSUPPLYINTERNALID, sy-vline,
  WA_CPRODROW-PMRPFLXBLCSTRTPRODUCTGROUP, sy-vline,
  WA_CPRODROW-PMRPFLEXIBLECONSTRAINT, sy-vline,
  WA_CPRODROW-PARENTPMRPSOURCEOFSUPPLY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPRODROW 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_CPRODROW 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_CPRODROW INTO WA_CPRODROW.


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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPRODROW-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRODROW-UNITOFMEASURE.
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_CPRODROW_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PMRPSUPPLYGROUP TYPE STRING,
PMRPSUPPLYGROUPCATEGORY TYPE STRING,
PMRPSOURCEOFSUPPLYINTERNALID TYPE STRING,
PMRPFLXBLCSTRTPRODUCTGROUP TYPE STRING,
PMRPFLEXIBLECONSTRAINT TYPE STRING,
PARENTPMRPSOURCEOFSUPPLY TYPE STRING,
PMRPREFERENCEPLAN TYPE STRING,
PMRPSUPPLYGROUPSOURCEOFSUPPLY TYPE STRING,
BUCKETCATEGORY TYPE STRING,
PLANTNAME TYPE STRING,
MRPAREATEXT TYPE STRING,
MRPCONTROLLER TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
UNITOFMEASURE TYPE STRING,
PMRPSOURCEOFSUPPLYNAME TYPE STRING,
MRPPROCEDURE TYPE STRING,
PROCUREMENTTYPE TYPE STRING,
PROCUREMENTTYPEDESCRIPTION TYPE STRING,
LOWLEVELCODE TYPE STRING,
MATERIALNAME TYPE STRING,
PRODUCTNAME TYPE STRING,
HIERARCHYNODEORDINALNUMBER TYPE STRING,
HIERARCHYPARENTNODEORDINALNMBR TYPE STRING,
HIERARCHYLEVEL TYPE STRING,
HIERARCHYNODESUBTREESIZE TYPE STRING,
HIERARCHYNODE TYPE STRING,
HIERARCHYPARENTNODE TYPE STRING,
HIERARCHYDISTANCEFROMROOT TYPE STRING,
HIERARCHYDESCENDANTCOUNT TYPE STRING,
HIERARCHYDRILLSTATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPRODROW_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_CPRODROW_STR-MANDT sy-vline 
WA_CPRODROW_STR-PMRPSIMULATION sy-vline 
WA_CPRODROW_STR-PRODUCT sy-vline 
WA_CPRODROW_STR-PLANT sy-vline 
WA_CPRODROW_STR-MRPAREA sy-vline 
WA_CPRODROW_STR-PMRPSUPPLYGROUP sy-vline 
WA_CPRODROW_STR-PMRPSUPPLYGROUPCATEGORY sy-vline 
WA_CPRODROW_STR-PMRPSOURCEOFSUPPLYINTERNALID sy-vline 
WA_CPRODROW_STR-PMRPFLXBLCSTRTPRODUCTGROUP sy-vline 
WA_CPRODROW_STR-PMRPFLEXIBLECONSTRAINT sy-vline 
WA_CPRODROW_STR-PARENTPMRPSOURCEOFSUPPLY sy-vline 
WA_CPRODROW_STR-PMRPREFERENCEPLAN sy-vline 
WA_CPRODROW_STR-PMRPSUPPLYGROUPSOURCEOFSUPPLY sy-vline 
WA_CPRODROW_STR-BUCKETCATEGORY sy-vline 
WA_CPRODROW_STR-PLANTNAME sy-vline 
WA_CPRODROW_STR-MRPAREATEXT sy-vline 
WA_CPRODROW_STR-MRPCONTROLLER sy-vline 
WA_CPRODROW_STR-MRPCONTROLLERNAME sy-vline 
WA_CPRODROW_STR-UNITOFMEASURE sy-vline 
WA_CPRODROW_STR-PMRPSOURCEOFSUPPLYNAME sy-vline 
WA_CPRODROW_STR-MRPPROCEDURE sy-vline 
WA_CPRODROW_STR-PROCUREMENTTYPE sy-vline 
WA_CPRODROW_STR-PROCUREMENTTYPEDESCRIPTION sy-vline 
WA_CPRODROW_STR-LOWLEVELCODE sy-vline 
WA_CPRODROW_STR-MATERIALNAME sy-vline 
WA_CPRODROW_STR-PRODUCTNAME sy-vline 
WA_CPRODROW_STR-HIERARCHYNODEORDINALNUMBER sy-vline 
WA_CPRODROW_STR-HIERARCHYPARENTNODEORDINALNMBR sy-vline 
WA_CPRODROW_STR-HIERARCHYLEVEL sy-vline 
WA_CPRODROW_STR-HIERARCHYNODESUBTREESIZE sy-vline 
WA_CPRODROW_STR-HIERARCHYNODE sy-vline 
WA_CPRODROW_STR-HIERARCHYPARENTNODE sy-vline 
WA_CPRODROW_STR-HIERARCHYDISTANCEFROMROOT sy-vline 
WA_CPRODROW_STR-HIERARCHYDESCENDANTCOUNT sy-vline 
WA_CPRODROW_STR-HIERARCHYDRILLSTATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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