ABAP Select data from SAP table APURCHASECTRITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APURCHASECTRITM
*  INTO TABLE @DATA(IT_APURCHASECTRITM2).
*--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_APURCHASECTRITM INDEX 1 INTO DATA(WA_APURCHASECTRITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APURCHASECTRITM>-MANDT = 1.
<APURCHASECTRITM>-PURCHASECONTRACT = 1.
<APURCHASECTRITM>-PURCHASECONTRACTITEM = 1.
<APURCHASECTRITM>-PURCHASINGCONTRACTDELETIONCODE = 1.
<APURCHASECTRITM>-PURCHASECONTRACTITEMTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APURCHASECTRITM-COMPANYCODE, sy-vline,
  WA_APURCHASECTRITM-PLANT, sy-vline,
  WA_APURCHASECTRITM-STORAGELOCATION, sy-vline,
  WA_APURCHASECTRITM-REQUIREMENTTRACKING, sy-vline,
  WA_APURCHASECTRITM-MATERIALGROUP, sy-vline,
  WA_APURCHASECTRITM-SUPPLIERMATERIALNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APURCHASECTRITM 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_APURCHASECTRITM 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_APURCHASECTRITM INTO WA_APURCHASECTRITM.


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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field CONTRITEMOPENQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_APURCHASECTRITM-CONTRITEMOPENQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APURCHASECTRITM-CONTRITEMOPENQTYUNIT.
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_APURCHASECTRITM_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
PURCHASINGCONTRACTDELETIONCODE TYPE STRING,
PURCHASECONTRACTITEMTEXT TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
REQUIREMENTTRACKING TYPE STRING,
MATERIALGROUP TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
TARGETQUANTITY TYPE STRING,
PURGDOCRELEASEORDERQUANTITY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
TAXCODE TYPE STRING,
TAXCOUNTRY TYPE STRING,
TAXDETERMINATIONDATE TYPE STRING,
STOCKTYPE TYPE STRING,
ISINFORECORDUPDATED TYPE STRING,
PRICEISTOBEPRINTED TYPE STRING,
PURGDOCESTIMATEDPRICE TYPE STRING,
NODAYSREMINDER1 TYPE STRING,
NODAYSREMINDER2 TYPE STRING,
NODAYSREMINDER3 TYPE STRING,
PLANNEDDELIVERYDURATIONINDAYS TYPE STRING,
OVERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
UNLIMITEDOVERDELIVERYISALLOWED TYPE STRING,
UNDERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
GOODSRECEIPTISEXPECTED TYPE STRING,
GOODSRECEIPTISNONVALUATED TYPE STRING,
INVOICEISEXPECTED TYPE STRING,
INVOICEISGOODSRECEIPTBASED TYPE STRING,
ISORDERACKNRQD TYPE STRING,
PURGDOCORDERACKNNUMBER TYPE STRING,
SHIPPINGINSTRUCTION TYPE STRING,
MANUALDELIVERYADDRESSID TYPE STRING,
VOLUMEUNIT TYPE STRING,
SUBCONTRACTOR TYPE STRING,
EVALDRCPTSETTLMTISALLOWED TYPE STRING,
MATERIAL TYPE STRING,
SERVICEPERFORMER TYPE STRING,
PRODUCTTYPE TYPE STRING,
MATERIALTYPE TYPE STRING,
FORMATTEDPURCHASECONTRACTITEM TYPE STRING,
PURCHASINGPARENTITEM TYPE STRING,
PRODUCTSEASONYEAR TYPE STRING,
PRODUCTSEASON TYPE STRING,
PRODUCTCOLLECTION TYPE STRING,
PRODUCTTHEME TYPE STRING,
PRODUCTCHARACTERISTIC1 TYPE STRING,
PRODUCTCHARACTERISTIC2 TYPE STRING,
PRODUCTCHARACTERISTIC3 TYPE STRING,
PURCHASEOUTLINEAGREEMENT TYPE STRING,
PURCHASEOUTLINEAGREEMENTITEM TYPE STRING,
CONTRACTITEMCONSUMEDQUANTITY TYPE STRING,
CONTRITEMCONSUMEDQUANTITYUNIT TYPE STRING,
CONTRITEMOPENQTY TYPE STRING,
CONTRITEMOPENQTYUNIT TYPE STRING,
STOCKSEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APURCHASECTRITM_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_APURCHASECTRITM_STR-MANDT sy-vline 
WA_APURCHASECTRITM_STR-PURCHASECONTRACT sy-vline 
WA_APURCHASECTRITM_STR-PURCHASECONTRACTITEM sy-vline 
WA_APURCHASECTRITM_STR-PURCHASINGCONTRACTDELETIONCODE sy-vline 
WA_APURCHASECTRITM_STR-PURCHASECONTRACTITEMTEXT sy-vline 
WA_APURCHASECTRITM_STR-COMPANYCODE sy-vline 
WA_APURCHASECTRITM_STR-PLANT sy-vline 
WA_APURCHASECTRITM_STR-STORAGELOCATION sy-vline 
WA_APURCHASECTRITM_STR-REQUIREMENTTRACKING sy-vline 
WA_APURCHASECTRITM_STR-MATERIALGROUP sy-vline 
WA_APURCHASECTRITM_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_APURCHASECTRITM_STR-ORDERQUANTITYUNIT sy-vline 
WA_APURCHASECTRITM_STR-TARGETQUANTITY sy-vline 
WA_APURCHASECTRITM_STR-PURGDOCRELEASEORDERQUANTITY sy-vline 
WA_APURCHASECTRITM_STR-ORDERPRICEUNIT sy-vline 
WA_APURCHASECTRITM_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_APURCHASECTRITM_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_APURCHASECTRITM_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_APURCHASECTRITM_STR-DOCUMENTCURRENCY sy-vline 
WA_APURCHASECTRITM_STR-NETPRICEQUANTITY sy-vline 
WA_APURCHASECTRITM_STR-TAXCODE sy-vline 
WA_APURCHASECTRITM_STR-TAXCOUNTRY sy-vline 
WA_APURCHASECTRITM_STR-TAXDETERMINATIONDATE sy-vline 
WA_APURCHASECTRITM_STR-STOCKTYPE sy-vline 
WA_APURCHASECTRITM_STR-ISINFORECORDUPDATED sy-vline 
WA_APURCHASECTRITM_STR-PRICEISTOBEPRINTED sy-vline 
WA_APURCHASECTRITM_STR-PURGDOCESTIMATEDPRICE sy-vline 
WA_APURCHASECTRITM_STR-NODAYSREMINDER1 sy-vline 
WA_APURCHASECTRITM_STR-NODAYSREMINDER2 sy-vline 
WA_APURCHASECTRITM_STR-NODAYSREMINDER3 sy-vline 
WA_APURCHASECTRITM_STR-PLANNEDDELIVERYDURATIONINDAYS sy-vline 
WA_APURCHASECTRITM_STR-OVERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_APURCHASECTRITM_STR-UNLIMITEDOVERDELIVERYISALLOWED sy-vline 
WA_APURCHASECTRITM_STR-UNDERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_APURCHASECTRITM_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_APURCHASECTRITM_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_APURCHASECTRITM_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_APURCHASECTRITM_STR-GOODSRECEIPTISEXPECTED sy-vline 
WA_APURCHASECTRITM_STR-GOODSRECEIPTISNONVALUATED sy-vline 
WA_APURCHASECTRITM_STR-INVOICEISEXPECTED sy-vline 
WA_APURCHASECTRITM_STR-INVOICEISGOODSRECEIPTBASED sy-vline 
WA_APURCHASECTRITM_STR-ISORDERACKNRQD sy-vline 
WA_APURCHASECTRITM_STR-PURGDOCORDERACKNNUMBER sy-vline 
WA_APURCHASECTRITM_STR-SHIPPINGINSTRUCTION sy-vline 
WA_APURCHASECTRITM_STR-MANUALDELIVERYADDRESSID sy-vline 
WA_APURCHASECTRITM_STR-VOLUMEUNIT sy-vline 
WA_APURCHASECTRITM_STR-SUBCONTRACTOR sy-vline 
WA_APURCHASECTRITM_STR-EVALDRCPTSETTLMTISALLOWED sy-vline 
WA_APURCHASECTRITM_STR-MATERIAL sy-vline 
WA_APURCHASECTRITM_STR-SERVICEPERFORMER sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTTYPE sy-vline 
WA_APURCHASECTRITM_STR-MATERIALTYPE sy-vline 
WA_APURCHASECTRITM_STR-FORMATTEDPURCHASECONTRACTITEM sy-vline 
WA_APURCHASECTRITM_STR-PURCHASINGPARENTITEM sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTSEASONYEAR sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTSEASON sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTCOLLECTION sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTTHEME sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTCHARACTERISTIC1 sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTCHARACTERISTIC2 sy-vline 
WA_APURCHASECTRITM_STR-PRODUCTCHARACTERISTIC3 sy-vline 
WA_APURCHASECTRITM_STR-PURCHASEOUTLINEAGREEMENT sy-vline 
WA_APURCHASECTRITM_STR-PURCHASEOUTLINEAGREEMENTITEM sy-vline 
WA_APURCHASECTRITM_STR-CONTRACTITEMCONSUMEDQUANTITY sy-vline 
WA_APURCHASECTRITM_STR-CONTRITEMCONSUMEDQUANTITYUNIT sy-vline 
WA_APURCHASECTRITM_STR-CONTRITEMOPENQTY sy-vline 
WA_APURCHASECTRITM_STR-CONTRITEMOPENQTYUNIT sy-vline 
WA_APURCHASECTRITM_STR-STOCKSEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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