ABAP Select data from SAP table CPURCTRCNDIWD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPURCTRCNDIWD
*  INTO TABLE @DATA(IT_CPURCTRCNDIWD2).
*--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_CPURCTRCNDIWD INDEX 1 INTO DATA(WA_CPURCTRCNDIWD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPURCTRCNDIWD>-MANDT = 1.
<CPURCTRCNDIWD>-PURCHASECONTRACT = 1.
<CPURCTRCNDIWD>-PURCHASECONTRACTITEM = 1.
<CPURCTRCNDIWD>-CONDITIONVALIDITYENDDATE = 1.
<CPURCTRCNDIWD>-CONDITIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPURCTRCNDIWD-CONDITIONRECORD, sy-vline,
  WA_CPURCTRCNDIWD-CONDITIONSEQUENTIALNUMBER, sy-vline,
  WA_CPURCTRCNDIWD-PURCHASECONTRACTITEMFOREDIT, sy-vline,
  WA_CPURCTRCNDIWD-PURCHASECONTRACTFOREDIT, sy-vline,
  WA_CPURCTRCNDIWD-CONDITIONRECORDFOREDIT, sy-vline,
  WA_CPURCTRCNDIWD-CNDNSEQUENTIALNUMBERFOREDIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPURCTRCNDIWD 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_CPURCTRCNDIWD 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_CPURCTRCNDIWD INTO WA_CPURCTRCNDIWD.


*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 PURCHASECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPURCTRCNDIWD-PURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURCTRCNDIWD-PURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASECONTRACTFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPURCTRCNDIWD-PURCHASECONTRACTFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURCTRCNDIWD-PURCHASECONTRACTFOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CONDITIONQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPURCTRCNDIWD-CONDITIONQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPURCTRCNDIWD-CONDITIONQUANTITYUNIT.
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_CPURCTRCNDIWD_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
CONDITIONVALIDITYENDDATE TYPE STRING,
CONDITIONTYPE TYPE STRING,
CONDITIONRECORD TYPE STRING,
CONDITIONSEQUENTIALNUMBER TYPE STRING,
PURCHASECONTRACTITEMFOREDIT TYPE STRING,
PURCHASECONTRACTFOREDIT TYPE STRING,
CONDITIONRECORDFOREDIT TYPE STRING,
CNDNSEQUENTIALNUMBERFOREDIT TYPE STRING,
CONDITIONVALIDITYSTARTDATE TYPE STRING,
CNDNVALDTYENDDTEFOREDIT TYPE STRING,
CONDITIONTYPEFOREDIT TYPE STRING,
CONDITIONRATEVALUE TYPE STRING,
CONDITIONRATEVALUEUNIT TYPE STRING,
CONDITIONQUANTITY TYPE STRING,
CONDITIONQUANTITYUNIT TYPE STRING,
CONDITIONAPPLICATION TYPE STRING,
CONDITIONCALCULATIONTYPE TYPE STRING,
CONDITIONISDELETED TYPE STRING,
CONDITIONCLASSIFICATIONDESC TYPE STRING,
CONDITIONCLASSIFICATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPURCTRCNDIWD_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_CPURCTRCNDIWD_STR-MANDT sy-vline 
WA_CPURCTRCNDIWD_STR-PURCHASECONTRACT sy-vline 
WA_CPURCTRCNDIWD_STR-PURCHASECONTRACTITEM sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONVALIDITYENDDATE sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONTYPE sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONRECORD sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONSEQUENTIALNUMBER sy-vline 
WA_CPURCTRCNDIWD_STR-PURCHASECONTRACTITEMFOREDIT sy-vline 
WA_CPURCTRCNDIWD_STR-PURCHASECONTRACTFOREDIT sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONRECORDFOREDIT sy-vline 
WA_CPURCTRCNDIWD_STR-CNDNSEQUENTIALNUMBERFOREDIT sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONVALIDITYSTARTDATE sy-vline 
WA_CPURCTRCNDIWD_STR-CNDNVALDTYENDDTEFOREDIT sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONTYPEFOREDIT sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONRATEVALUE sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONRATEVALUEUNIT sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONQUANTITY sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONQUANTITYUNIT sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONAPPLICATION sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONCALCULATIONTYPE sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONISDELETED sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONCLASSIFICATIONDESC sy-vline 
WA_CPURCTRCNDIWD_STR-CONDITIONCLASSIFICATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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