ABAP Select data from SAP table PURCHASECTR_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PURCHASECTR_D
*  INTO TABLE @DATA(IT_PURCHASECTR_D2).
*--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_PURCHASECTR_D INDEX 1 INTO DATA(WA_PURCHASECTR_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PURCHASECTR_D>-MANDT = 1.
<PURCHASECTR_D>-PURCHASECONTRACTDRAFTUUID = 1.
<PURCHASECTR_D>-ACTIVEPURCHASECONTRACT = 1.
<PURCHASECTR_D>-PURCHASECONTRACTTYPE = 1.
<PURCHASECTR_D>-PURCHASINGDOCUMENTCATEGORY = 1.

ENDLOOP.

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

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


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

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

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

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

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

*Conversion exit EXCRT, internal->external for field EXCHANGERATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_PURCHASECTR_D-EXCHANGERATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PURCHASECTR_D-EXCHANGERATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PURCHASECTR_D-PURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PURCHASECTR_D-PURCHASECONTRACT.
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_PURCHASECTR_D_STR, 
MANDT TYPE STRING,
PURCHASECONTRACTDRAFTUUID TYPE STRING,
ACTIVEPURCHASECONTRACT 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,
CORRESPNCEXTERNALREFERENCE TYPE STRING,
CORRESPNCINTERNALREFERENCE TYPE STRING,
SUPPLIERRESPSALESPERSONNAME TYPE STRING,
SUPPLIERPHONENUMBER TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
PURCHASECONTRACT TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DUMMY_EKKO_INCL_EEW_PS TYPE STRING,
RELEASEISNOTCOMPLETED TYPE STRING,
ISPURCONTRTEMPLATE TYPE STRING,
CTRTMPLREFGUID TYPE STRING,
PURCHASINGDOCUMENTNAME TYPE STRING,
ISCONTRREFOFPURREQN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PURCHASECTR_D_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_PURCHASECTR_D_STR-MANDT sy-vline 
WA_PURCHASECTR_D_STR-PURCHASECONTRACTDRAFTUUID sy-vline 
WA_PURCHASECTR_D_STR-ACTIVEPURCHASECONTRACT sy-vline 
WA_PURCHASECTR_D_STR-PURCHASECONTRACTTYPE sy-vline 
WA_PURCHASECTR_D_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_PURCHASECTR_D_STR-CREATIONDATE sy-vline 
WA_PURCHASECTR_D_STR-SUPPLIER sy-vline 
WA_PURCHASECTR_D_STR-COMPANYCODE sy-vline 
WA_PURCHASECTR_D_STR-PURCHASINGORGANIZATION sy-vline 
WA_PURCHASECTR_D_STR-PURCHASINGGROUP sy-vline 
WA_PURCHASECTR_D_STR-DOCUMENTCURRENCY sy-vline 
WA_PURCHASECTR_D_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_PURCHASECTR_D_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_PURCHASECTR_D_STR-PAYMENTTERMS sy-vline 
WA_PURCHASECTR_D_STR-CASHDISCOUNT1DAYS sy-vline 
WA_PURCHASECTR_D_STR-CASHDISCOUNT2DAYS sy-vline 
WA_PURCHASECTR_D_STR-NETPAYMENTDAYS sy-vline 
WA_PURCHASECTR_D_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_PURCHASECTR_D_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_PURCHASECTR_D_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_PURCHASECTR_D_STR-VALIDITYSTARTDATE sy-vline 
WA_PURCHASECTR_D_STR-VALIDITYENDDATE sy-vline 
WA_PURCHASECTR_D_STR-RELEASECODE sy-vline 
WA_PURCHASECTR_D_STR-CREATEDBYUSER sy-vline 
WA_PURCHASECTR_D_STR-PURCHASINGDOCUMENTDELETIONCODE sy-vline 
WA_PURCHASECTR_D_STR-SUPPLIERADDRESSID sy-vline 
WA_PURCHASECTR_D_STR-SUPPLYINGSUPPLIER sy-vline 
WA_PURCHASECTR_D_STR-INVOICINGPARTY sy-vline 
WA_PURCHASECTR_D_STR-EXCHANGERATE sy-vline 
WA_PURCHASECTR_D_STR-EXCHANGERATEISFIXED sy-vline 
WA_PURCHASECTR_D_STR-QUOTATIONSUBMISSIONDATE sy-vline 
WA_PURCHASECTR_D_STR-SUPPLIERQUOTATION sy-vline 
WA_PURCHASECTR_D_STR-CORRESPNCEXTERNALREFERENCE sy-vline 
WA_PURCHASECTR_D_STR-CORRESPNCINTERNALREFERENCE sy-vline 
WA_PURCHASECTR_D_STR-SUPPLIERRESPSALESPERSONNAME sy-vline 
WA_PURCHASECTR_D_STR-SUPPLIERPHONENUMBER sy-vline 
WA_PURCHASECTR_D_STR-INCOTERMSVERSION sy-vline 
WA_PURCHASECTR_D_STR-INCOTERMSLOCATION1 sy-vline 
WA_PURCHASECTR_D_STR-INCOTERMSLOCATION2 sy-vline 
WA_PURCHASECTR_D_STR-PURCHASECONTRACT sy-vline 
WA_PURCHASECTR_D_STR-HASACTIVEENTITY sy-vline 
WA_PURCHASECTR_D_STR-DUMMY_EKKO_INCL_EEW_PS sy-vline 
WA_PURCHASECTR_D_STR-RELEASEISNOTCOMPLETED sy-vline 
WA_PURCHASECTR_D_STR-ISPURCONTRTEMPLATE sy-vline 
WA_PURCHASECTR_D_STR-CTRTMPLREFGUID sy-vline 
WA_PURCHASECTR_D_STR-PURCHASINGDOCUMENTNAME sy-vline 
WA_PURCHASECTR_D_STR-ISCONTRREFOFPURREQN sy-vline      INTO ld_text SEPARATED BY SPACE.

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