ABAP Select data from SAP table ISUPPLPURCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUPPLPURCH
*  INTO TABLE @DATA(IT_ISUPPLPURCH2).
*--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_ISUPPLPURCH INDEX 1 INTO DATA(WA_ISUPPLPURCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUPPLPURCH>-MANDT = 1.
<ISUPPLPURCH>-SUPPLIER = 1.
<ISUPPLPURCH>-PURCHASINGORGANIZATION = 1.
<ISUPPLPURCH>-PURCHASINGGROUP = 1.
<ISUPPLPURCH>-MATERIALPLANNEDDELIVERYDURN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUPPLPURCH-PURCHASINGISBLOCKEDFORSUPPLIER, sy-vline,
  WA_ISUPPLPURCH-SUPPLIERRESPSALESPERSONNAME, sy-vline,
  WA_ISUPPLPURCH-SUPPLIERPHONENUMBER, sy-vline,
  WA_ISUPPLPURCH-PURCHASEORDERCURRENCY, sy-vline,
  WA_ISUPPLPURCH-MINIMUMORDERAMOUNT, sy-vline,
  WA_ISUPPLPURCH-CALCULATIONSCHEMAGROUPCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUPPLPURCH 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_ISUPPLPURCH 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_ISUPPLPURCH INTO WA_ISUPPLPURCH.


*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 SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISUPPLPURCH-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUPPLPURCH-SUPPLIER.
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_ISUPPLPURCH_STR, 
MANDT TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MATERIALPLANNEDDELIVERYDURN TYPE STRING,
PURCHASINGISBLOCKEDFORSUPPLIER TYPE STRING,
SUPPLIERRESPSALESPERSONNAME TYPE STRING,
SUPPLIERPHONENUMBER TYPE STRING,
PURCHASEORDERCURRENCY TYPE STRING,
MINIMUMORDERAMOUNT TYPE STRING,
CALCULATIONSCHEMAGROUPCODE TYPE STRING,
PAYMENTTERMS TYPE STRING,
PRICINGDATECONTROL TYPE STRING,
SUPPLIERABCCLASSIFICATIONCODE TYPE STRING,
SHIPPINGCONDITION TYPE STRING,
PURORDAUTOGENERATIONISALLOWED TYPE STRING,
INVOICEISGOODSRECEIPTBASED TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
DELETIONINDICATOR TYPE STRING,
PLANNEDDELIVERYDURATIONINDAYS TYPE STRING,
CONTACTPERSONPHONENUMBER TYPE STRING,
SUPPLIERCONFIRMATIONCONTROLKEY TYPE STRING,
ISORDERACKNRQD TYPE STRING,
EVALDRECEIPTSETTLEMENTISACTIVE TYPE STRING,
AUTOMATICEVALUATEDRCPTSETTLMT TYPE STRING,
SUPPLIERACCOUNTNUMBER TYPE STRING,
SUPLRISSUBJTOSUBSQNTSETTLEMENT TYPE STRING,
SUPLRPURGORGAGRMTOFBUSVOLISRQD TYPE STRING,
SUPLRINVCREVALISALLOWED TYPE STRING,
SUPLRPURGORGISRLVTFORPRICEDETN TYPE STRING,
INTRASTATCRSBORDERTRMODE TYPE STRING,
PRODUCTUNITGROUP TYPE STRING,
ROUNDINGPROFILE TYPE STRING,
PLANNINGCYCLE TYPE STRING,
SUPLRDISCOUNTINKINDISGRANTED TYPE STRING,
SUPLRISRLVTFORSETTLMTMGMT TYPE STRING,
INVOICEISMMSERVICEENTRYBASED TYPE STRING,
PRODSTOCKANDSLSDATATRANSFPRFL TYPE STRING,
EVALDRCPTSETTLEMENTPROFILE TYPE STRING,
ABSOLUTEHANDLINGSURCHARGEAMT TYPE STRING,
PERCENTAGEHANDLINGSURCHARGEAMT TYPE STRING,
MINIMUMHANDLINGSURCHARGEAMT TYPE STRING,
MAXIMUMHANDLINGSURCHARGEAMT TYPE STRING,
AUTOMDEBITCRTNISENBLDONGI TYPE STRING,
ISACTIVEENTITY TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUPPLPURCH_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_ISUPPLPURCH_STR-MANDT sy-vline 
WA_ISUPPLPURCH_STR-SUPPLIER sy-vline 
WA_ISUPPLPURCH_STR-PURCHASINGORGANIZATION sy-vline 
WA_ISUPPLPURCH_STR-PURCHASINGGROUP sy-vline 
WA_ISUPPLPURCH_STR-MATERIALPLANNEDDELIVERYDURN sy-vline 
WA_ISUPPLPURCH_STR-PURCHASINGISBLOCKEDFORSUPPLIER sy-vline 
WA_ISUPPLPURCH_STR-SUPPLIERRESPSALESPERSONNAME sy-vline 
WA_ISUPPLPURCH_STR-SUPPLIERPHONENUMBER sy-vline 
WA_ISUPPLPURCH_STR-PURCHASEORDERCURRENCY sy-vline 
WA_ISUPPLPURCH_STR-MINIMUMORDERAMOUNT sy-vline 
WA_ISUPPLPURCH_STR-CALCULATIONSCHEMAGROUPCODE sy-vline 
WA_ISUPPLPURCH_STR-PAYMENTTERMS sy-vline 
WA_ISUPPLPURCH_STR-PRICINGDATECONTROL sy-vline 
WA_ISUPPLPURCH_STR-SUPPLIERABCCLASSIFICATIONCODE sy-vline 
WA_ISUPPLPURCH_STR-SHIPPINGCONDITION sy-vline 
WA_ISUPPLPURCH_STR-PURORDAUTOGENERATIONISALLOWED sy-vline 
WA_ISUPPLPURCH_STR-INVOICEISGOODSRECEIPTBASED sy-vline 
WA_ISUPPLPURCH_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_ISUPPLPURCH_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_ISUPPLPURCH_STR-INCOTERMSVERSION sy-vline 
WA_ISUPPLPURCH_STR-INCOTERMSLOCATION1 sy-vline 
WA_ISUPPLPURCH_STR-INCOTERMSLOCATION2 sy-vline 
WA_ISUPPLPURCH_STR-DELETIONINDICATOR sy-vline 
WA_ISUPPLPURCH_STR-PLANNEDDELIVERYDURATIONINDAYS sy-vline 
WA_ISUPPLPURCH_STR-CONTACTPERSONPHONENUMBER sy-vline 
WA_ISUPPLPURCH_STR-SUPPLIERCONFIRMATIONCONTROLKEY sy-vline 
WA_ISUPPLPURCH_STR-ISORDERACKNRQD sy-vline 
WA_ISUPPLPURCH_STR-EVALDRECEIPTSETTLEMENTISACTIVE sy-vline 
WA_ISUPPLPURCH_STR-AUTOMATICEVALUATEDRCPTSETTLMT sy-vline 
WA_ISUPPLPURCH_STR-SUPPLIERACCOUNTNUMBER sy-vline 
WA_ISUPPLPURCH_STR-SUPLRISSUBJTOSUBSQNTSETTLEMENT sy-vline 
WA_ISUPPLPURCH_STR-SUPLRPURGORGAGRMTOFBUSVOLISRQD sy-vline 
WA_ISUPPLPURCH_STR-SUPLRINVCREVALISALLOWED sy-vline 
WA_ISUPPLPURCH_STR-SUPLRPURGORGISRLVTFORPRICEDETN sy-vline 
WA_ISUPPLPURCH_STR-INTRASTATCRSBORDERTRMODE sy-vline 
WA_ISUPPLPURCH_STR-PRODUCTUNITGROUP sy-vline 
WA_ISUPPLPURCH_STR-ROUNDINGPROFILE sy-vline 
WA_ISUPPLPURCH_STR-PLANNINGCYCLE sy-vline 
WA_ISUPPLPURCH_STR-SUPLRDISCOUNTINKINDISGRANTED sy-vline 
WA_ISUPPLPURCH_STR-SUPLRISRLVTFORSETTLMTMGMT sy-vline 
WA_ISUPPLPURCH_STR-INVOICEISMMSERVICEENTRYBASED sy-vline 
WA_ISUPPLPURCH_STR-PRODSTOCKANDSLSDATATRANSFPRFL sy-vline 
WA_ISUPPLPURCH_STR-EVALDRCPTSETTLEMENTPROFILE sy-vline 
WA_ISUPPLPURCH_STR-ABSOLUTEHANDLINGSURCHARGEAMT sy-vline 
WA_ISUPPLPURCH_STR-PERCENTAGEHANDLINGSURCHARGEAMT sy-vline 
WA_ISUPPLPURCH_STR-MINIMUMHANDLINGSURCHARGEAMT sy-vline 
WA_ISUPPLPURCH_STR-MAXIMUMHANDLINGSURCHARGEAMT sy-vline 
WA_ISUPPLPURCH_STR-AUTOMDEBITCRTNISENBLDONGI sy-vline 
WA_ISUPPLPURCH_STR-ISACTIVEENTITY sy-vline 
WA_ISUPPLPURCH_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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