ABAP Select data from SAP table IPURCHASECTRWD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPURCHASECTRWD
*  INTO TABLE @DATA(IT_IPURCHASECTRWD2).
*--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_IPURCHASECTRWD INDEX 1 INTO DATA(WA_IPURCHASECTRWD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPURCHASECTRWD>-MANDT = 1.
<IPURCHASECTRWD>-PURCHASECONTRACT = 1.
<IPURCHASECTRWD>-PURCHASECONTRACTFOREDIT = 1.
<IPURCHASECTRWD>-PURCHASECONTRACTTYPE = 1.
<IPURCHASECTRWD>-PURCHASINGDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPURCHASECTRWD-CREATIONDATE, sy-vline,
  WA_IPURCHASECTRWD-SUPPLIER, sy-vline,
  WA_IPURCHASECTRWD-COMPANYCODE, sy-vline,
  WA_IPURCHASECTRWD-PURCHASINGORGANIZATION, sy-vline,
  WA_IPURCHASECTRWD-PURCHASINGGROUP, sy-vline,
  WA_IPURCHASECTRWD-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPURCHASECTRWD 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_IPURCHASECTRWD 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_IPURCHASECTRWD INTO WA_IPURCHASECTRWD.


*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_IPURCHASECTRWD-PURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPURCHASECTRWD-PURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field INVOICINGPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPURCHASECTRWD-INVOICINGPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPURCHASECTRWD-INVOICINGPARTY.
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_IPURCHASECTRWD_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTFOREDIT TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
CREATIONDATE TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
PAYMENTTERMS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
PURCHASECONTRACTTARGETAMOUNT TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
RELEASECODE TYPE STRING,
CREATEDBYUSER TYPE STRING,
PURCHASINGDOCUMENTDELETIONCODE TYPE STRING,
SUPPLIERADDRESSID TYPE STRING,
SUPPLYINGSUPPLIER TYPE STRING,
INVOICINGPARTY TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
QUOTATIONSUBMISSIONDATE TYPE STRING,
SUPPLIERQUOTATION TYPE STRING,
RELEASEISNOTCOMPLETED TYPE STRING,
CORRESPNCEXTERNALREFERENCE TYPE STRING,
CORRESPNCINTERNALREFERENCE TYPE STRING,
SUPPLIERRESPSALESPERSONNAME TYPE STRING,
SUPPLIERPHONENUMBER TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
PURCHASINGDOCUMENTNAME TYPE STRING,
PURCHASINGDOCUMENTORIGIN TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PURCHASINGPROCESSINGSTATUS TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
PURCHASINGDOCUMENTTYPENAME TYPE STRING,
PURCONTRCONSUMEDVAL TYPE STRING,
CONTRACTEXPIRYPREDICTEDDATE TYPE STRING,
PURCHASECONTRACTVALIDITYSTATUS TYPE STRING,
PURCONTRVALIDITYSTATUSNAME TYPE STRING,
PURCONTRSTATUSCRITICALITY TYPE STRING,
SUPPLIEROPERATIONALSCORE TYPE STRING,
PURCONTRHASADVNCDUSRINTERFACE TYPE STRING,
NUMBEROFDAYS TYPE STRING,
ISEXPIRED TYPE STRING,
PURCONTROUTPUTCTRLTYPE TYPE STRING,
PURCONTROUTPUTCTRLSTATUS TYPE STRING,
PURCONTROUTPUTCTRLSTATUSTXT TYPE STRING,
PURCONTROUTPUTCTRLTIME TYPE STRING,
WEIGHTEDRELEVANCE TYPE STRING,
CONTRACTCONSUMPTIONINPCT TYPE STRING,
PURCONTRCNSMPNCRITICALITY TYPE STRING,
ACCWORKFLOWAPPROVER TYPE STRING,
ACCWORKFLOWAPPROVERFIRSTNAME TYPE STRING,
APPROVALSTATUSNAME TYPE STRING,
APPROVERUSER TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
ISCONTRREFOFPURREQN TYPE STRING,
CHANGERECORDREFERENCEUUID TYPE STRING,
ISPURCONTRTEMPLATE TYPE STRING,
PURGCONTRACTISINPREPARATION TYPE STRING,
PURCHASINGDOCUMENTSTATUS TYPE STRING,
PURCHASINGITEMHASHIERARCHY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPURCHASECTRWD_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_IPURCHASECTRWD_STR-MANDT sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASECONTRACT sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASECONTRACTFOREDIT sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASECONTRACTTYPE sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_IPURCHASECTRWD_STR-CREATIONDATE sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLIER sy-vline 
WA_IPURCHASECTRWD_STR-COMPANYCODE sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGORGANIZATION sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGGROUP sy-vline 
WA_IPURCHASECTRWD_STR-DOCUMENTCURRENCY sy-vline 
WA_IPURCHASECTRWD_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_IPURCHASECTRWD_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_IPURCHASECTRWD_STR-PAYMENTTERMS sy-vline 
WA_IPURCHASECTRWD_STR-CASHDISCOUNT1DAYS sy-vline 
WA_IPURCHASECTRWD_STR-CASHDISCOUNT2DAYS sy-vline 
WA_IPURCHASECTRWD_STR-NETPAYMENTDAYS sy-vline 
WA_IPURCHASECTRWD_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_IPURCHASECTRWD_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_IPURCHASECTRWD_STR-VALIDITYSTARTDATE sy-vline 
WA_IPURCHASECTRWD_STR-VALIDITYENDDATE sy-vline 
WA_IPURCHASECTRWD_STR-RELEASECODE sy-vline 
WA_IPURCHASECTRWD_STR-CREATEDBYUSER sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGDOCUMENTDELETIONCODE sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLIERADDRESSID sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLYINGSUPPLIER sy-vline 
WA_IPURCHASECTRWD_STR-INVOICINGPARTY sy-vline 
WA_IPURCHASECTRWD_STR-EXCHANGERATE sy-vline 
WA_IPURCHASECTRWD_STR-EXCHANGERATEISFIXED sy-vline 
WA_IPURCHASECTRWD_STR-QUOTATIONSUBMISSIONDATE sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLIERQUOTATION sy-vline 
WA_IPURCHASECTRWD_STR-RELEASEISNOTCOMPLETED sy-vline 
WA_IPURCHASECTRWD_STR-CORRESPNCEXTERNALREFERENCE sy-vline 
WA_IPURCHASECTRWD_STR-CORRESPNCINTERNALREFERENCE sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLIERRESPSALESPERSONNAME sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLIERPHONENUMBER sy-vline 
WA_IPURCHASECTRWD_STR-INCOTERMSVERSION sy-vline 
WA_IPURCHASECTRWD_STR-INCOTERMSLOCATION1 sy-vline 
WA_IPURCHASECTRWD_STR-INCOTERMSLOCATION2 sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGDOCUMENTNAME sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGDOCUMENTORIGIN sy-vline 
WA_IPURCHASECTRWD_STR-LASTCHANGEDATETIME sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGPROCESSINGSTATUS sy-vline 
WA_IPURCHASECTRWD_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGDOCUMENTTYPENAME sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTRCONSUMEDVAL sy-vline 
WA_IPURCHASECTRWD_STR-CONTRACTEXPIRYPREDICTEDDATE sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASECONTRACTVALIDITYSTATUS sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTRVALIDITYSTATUSNAME sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTRSTATUSCRITICALITY sy-vline 
WA_IPURCHASECTRWD_STR-SUPPLIEROPERATIONALSCORE sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTRHASADVNCDUSRINTERFACE sy-vline 
WA_IPURCHASECTRWD_STR-NUMBEROFDAYS sy-vline 
WA_IPURCHASECTRWD_STR-ISEXPIRED sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTROUTPUTCTRLTYPE sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTROUTPUTCTRLSTATUS sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTROUTPUTCTRLSTATUSTXT sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTROUTPUTCTRLTIME sy-vline 
WA_IPURCHASECTRWD_STR-WEIGHTEDRELEVANCE sy-vline 
WA_IPURCHASECTRWD_STR-CONTRACTCONSUMPTIONINPCT sy-vline 
WA_IPURCHASECTRWD_STR-PURCONTRCNSMPNCRITICALITY sy-vline 
WA_IPURCHASECTRWD_STR-ACCWORKFLOWAPPROVER sy-vline 
WA_IPURCHASECTRWD_STR-ACCWORKFLOWAPPROVERFIRSTNAME sy-vline 
WA_IPURCHASECTRWD_STR-APPROVALSTATUSNAME sy-vline 
WA_IPURCHASECTRWD_STR-APPROVERUSER sy-vline 
WA_IPURCHASECTRWD_STR-CREATEDBYUSERNAME sy-vline 
WA_IPURCHASECTRWD_STR-ISCONTRREFOFPURREQN sy-vline 
WA_IPURCHASECTRWD_STR-CHANGERECORDREFERENCEUUID sy-vline 
WA_IPURCHASECTRWD_STR-ISPURCONTRTEMPLATE sy-vline 
WA_IPURCHASECTRWD_STR-PURGCONTRACTISINPREPARATION sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGDOCUMENTSTATUS sy-vline 
WA_IPURCHASECTRWD_STR-PURCHASINGITEMHASHIERARCHY sy-vline      INTO ld_text SEPARATED BY SPACE.

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