ABAP Select data from SAP table NMMPURORDHIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NMMPURORDHIST
*  INTO TABLE @DATA(IT_NMMPURORDHIST2).
*--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_NMMPURORDHIST INDEX 1 INTO DATA(WA_NMMPURORDHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NMMPURORDHIST>-MANDT = 1.
<NMMPURORDHIST>-PURCHASEORDER = 1.
<NMMPURORDHIST>-PURCHASEORDERITEM = 1.
<NMMPURORDHIST>-ACCOUNTASSIGNMENTNUMBER = 1.
<NMMPURORDHIST>-PURCHASINGHISTORYDOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NMMPURORDHIST-PURCHASINGHISTORYDOCUMENTYEAR, sy-vline,
  WA_NMMPURORDHIST-PURCHASINGHISTORYDOCUMENT, sy-vline,
  WA_NMMPURORDHIST-PURCHASINGHISTORYDOCUMENTITEM, sy-vline,
  WA_NMMPURORDHIST-PURCHASINGHISTORYCATEGORY, sy-vline,
  WA_NMMPURORDHIST-GOODSMOVEMENTTYPE, sy-vline,
  WA_NMMPURORDHIST-POSTINGDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NMMPURORDHIST 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_NMMPURORDHIST 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_NMMPURORDHIST INTO WA_NMMPURORDHIST.


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

*Conversion exit GJAHR, internal->external for field PURCHASINGHISTORYDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_NMMPURORDHIST-PURCHASINGHISTORYDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NMMPURORDHIST-PURCHASINGHISTORYDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field REFERENCEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_NMMPURORDHIST-REFERENCEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NMMPURORDHIST-REFERENCEDOCUMENTFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_NMMPURORDHIST-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NMMPURORDHIST-BASEUNIT.
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_NMMPURORDHIST_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
ACCOUNTASSIGNMENTNUMBER TYPE STRING,
PURCHASINGHISTORYDOCUMENTTYPE TYPE STRING,
PURCHASINGHISTORYDOCUMENTYEAR TYPE STRING,
PURCHASINGHISTORYDOCUMENT TYPE STRING,
PURCHASINGHISTORYDOCUMENTITEM TYPE STRING,
PURCHASINGHISTORYCATEGORY TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
POSTINGDATE TYPE STRING,
CURRENCY TYPE STRING,
DEBITCREDITCODE TYPE STRING,
ISCOMPLETELYDELIVERED TYPE STRING,
REFERENCEDOCUMENTFISCALYEAR TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
RVSLOFGOODSRECEIPTISALLOWED TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
TAXCODE TYPE STRING,
DOCUMENTDATE TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
DELIVERYQUANTITYUNIT TYPE STRING,
MANUFACTURERMATERIAL TYPE STRING,
ACCOUNTINGDOCUMENTCREATIONDATE TYPE STRING,
QUANTITY TYPE STRING,
PURORDAMOUNTINCOMPANYCODECRCY TYPE STRING,
PURCHASEORDERAMOUNT TYPE STRING,
QTYINPURCHASEORDERPRICEUNIT TYPE STRING,
GRIRACCTCLRGAMTINCOCODECRCY TYPE STRING,
GDSRCPTBLKDSTKQTYINORDQTYUNIT TYPE STRING,
GDSRCPTBLKDSTKQTYINORDPRCUNIT TYPE STRING,
INVOICEAMTINCOCODECRCY TYPE STRING,
SHIPGINSTRNSUPPLIERCOMPLIANCE TYPE STRING,
INVOICEAMOUNTINFRGNCURRENCY TYPE STRING,
QUANTITYINDELIVERYQTYUNIT TYPE STRING,
GRIRACCTCLRGAMTINTRANSACCRCY TYPE STRING,
QUANTITYINBASEUNIT TYPE STRING,
GRIRACCTCLRGAMTINORDTRNSACCRCY TYPE STRING,
INVOICEAMTINPURORDTRANSACCRCY TYPE STRING,
VLTDGDSRCPTBLKDSTKQTYINORDUNIT TYPE STRING,
VLTDGDSRCPTBLKDQTYINORDPRCUNIT TYPE STRING,
ISTOBEACCEPTEDATORIGIN TYPE STRING,
EXCHANGERATEDIFFERENCEAMOUNT TYPE STRING,
EXCHANGERATE TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
BASEUNIT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NMMPURORDHIST_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_NMMPURORDHIST_STR-MANDT sy-vline 
WA_NMMPURORDHIST_STR-PURCHASEORDER sy-vline 
WA_NMMPURORDHIST_STR-PURCHASEORDERITEM sy-vline 
WA_NMMPURORDHIST_STR-ACCOUNTASSIGNMENTNUMBER sy-vline 
WA_NMMPURORDHIST_STR-PURCHASINGHISTORYDOCUMENTTYPE sy-vline 
WA_NMMPURORDHIST_STR-PURCHASINGHISTORYDOCUMENTYEAR sy-vline 
WA_NMMPURORDHIST_STR-PURCHASINGHISTORYDOCUMENT sy-vline 
WA_NMMPURORDHIST_STR-PURCHASINGHISTORYDOCUMENTITEM sy-vline 
WA_NMMPURORDHIST_STR-PURCHASINGHISTORYCATEGORY sy-vline 
WA_NMMPURORDHIST_STR-GOODSMOVEMENTTYPE sy-vline 
WA_NMMPURORDHIST_STR-POSTINGDATE sy-vline 
WA_NMMPURORDHIST_STR-CURRENCY sy-vline 
WA_NMMPURORDHIST_STR-DEBITCREDITCODE sy-vline 
WA_NMMPURORDHIST_STR-ISCOMPLETELYDELIVERED sy-vline 
WA_NMMPURORDHIST_STR-REFERENCEDOCUMENTFISCALYEAR sy-vline 
WA_NMMPURORDHIST_STR-REFERENCEDOCUMENT sy-vline 
WA_NMMPURORDHIST_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_NMMPURORDHIST_STR-MATERIAL sy-vline 
WA_NMMPURORDHIST_STR-PLANT sy-vline 
WA_NMMPURORDHIST_STR-RVSLOFGOODSRECEIPTISALLOWED sy-vline 
WA_NMMPURORDHIST_STR-PRICINGDOCUMENT sy-vline 
WA_NMMPURORDHIST_STR-TAXCODE sy-vline 
WA_NMMPURORDHIST_STR-DOCUMENTDATE sy-vline 
WA_NMMPURORDHIST_STR-INVENTORYVALUATIONTYPE sy-vline 
WA_NMMPURORDHIST_STR-DOCUMENTREFERENCEID sy-vline 
WA_NMMPURORDHIST_STR-DELIVERYQUANTITYUNIT sy-vline 
WA_NMMPURORDHIST_STR-MANUFACTURERMATERIAL sy-vline 
WA_NMMPURORDHIST_STR-ACCOUNTINGDOCUMENTCREATIONDATE sy-vline 
WA_NMMPURORDHIST_STR-QUANTITY sy-vline 
WA_NMMPURORDHIST_STR-PURORDAMOUNTINCOMPANYCODECRCY sy-vline 
WA_NMMPURORDHIST_STR-PURCHASEORDERAMOUNT sy-vline 
WA_NMMPURORDHIST_STR-QTYINPURCHASEORDERPRICEUNIT sy-vline 
WA_NMMPURORDHIST_STR-GRIRACCTCLRGAMTINCOCODECRCY sy-vline 
WA_NMMPURORDHIST_STR-GDSRCPTBLKDSTKQTYINORDQTYUNIT sy-vline 
WA_NMMPURORDHIST_STR-GDSRCPTBLKDSTKQTYINORDPRCUNIT sy-vline 
WA_NMMPURORDHIST_STR-INVOICEAMTINCOCODECRCY sy-vline 
WA_NMMPURORDHIST_STR-SHIPGINSTRNSUPPLIERCOMPLIANCE sy-vline 
WA_NMMPURORDHIST_STR-INVOICEAMOUNTINFRGNCURRENCY sy-vline 
WA_NMMPURORDHIST_STR-QUANTITYINDELIVERYQTYUNIT sy-vline 
WA_NMMPURORDHIST_STR-GRIRACCTCLRGAMTINTRANSACCRCY sy-vline 
WA_NMMPURORDHIST_STR-QUANTITYINBASEUNIT sy-vline 
WA_NMMPURORDHIST_STR-GRIRACCTCLRGAMTINORDTRNSACCRCY sy-vline 
WA_NMMPURORDHIST_STR-INVOICEAMTINPURORDTRANSACCRCY sy-vline 
WA_NMMPURORDHIST_STR-VLTDGDSRCPTBLKDSTKQTYINORDUNIT sy-vline 
WA_NMMPURORDHIST_STR-VLTDGDSRCPTBLKDQTYINORDPRCUNIT sy-vline 
WA_NMMPURORDHIST_STR-ISTOBEACCEPTEDATORIGIN sy-vline 
WA_NMMPURORDHIST_STR-EXCHANGERATEDIFFERENCEAMOUNT sy-vline 
WA_NMMPURORDHIST_STR-EXCHANGERATE sy-vline 
WA_NMMPURORDHIST_STR-DELIVERYDOCUMENT sy-vline 
WA_NMMPURORDHIST_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_NMMPURORDHIST_STR-ORDERPRICEUNIT sy-vline 
WA_NMMPURORDHIST_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_NMMPURORDHIST_STR-BASEUNIT sy-vline 
WA_NMMPURORDHIST_STR-DOCUMENTCURRENCY sy-vline 
WA_NMMPURORDHIST_STR-COMPANYCODECURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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