ABAP Select data from SAP table PCNTRLPURORDITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCNTRLPURORDITM
*  INTO TABLE @DATA(IT_PCNTRLPURORDITM2).
*--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_PCNTRLPURORDITM INDEX 1 INTO DATA(WA_PCNTRLPURORDITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCNTRLPURORDITM>-MANDT = 1.
<PCNTRLPURORDITM>-PURCHASEORDER = 1.
<PCNTRLPURORDITM>-PURCHASEORDERITEM = 1.
<PCNTRLPURORDITM>-EXTSOURCESYSTEM = 1.
<PCNTRLPURORDITM>-PURCHASEORDERITEMTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCNTRLPURORDITM-SUPPLIER, sy-vline,
  WA_PCNTRLPURORDITM-SUPPLYINGPLANT, sy-vline,
  WA_PCNTRLPURORDITM-PURCHASINGORGANIZATION, sy-vline,
  WA_PCNTRLPURORDITM-PURCHASINGGROUP, sy-vline,
  WA_PCNTRLPURORDITM-PURCHASEORDERDATE, sy-vline,
  WA_PCNTRLPURORDITM-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCNTRLPURORDITM 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_PCNTRLPURORDITM 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_PCNTRLPURORDITM INTO WA_PCNTRLPURORDITM.


*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_PCNTRLPURORDITM-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCNTRLPURORDITM-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERPRICEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCNTRLPURORDITM-ORDERPRICEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCNTRLPURORDITM-ORDERPRICEUNIT.
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_PCNTRLPURORDITM_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
EXTSOURCESYSTEM TYPE STRING,
PURCHASEORDERITEMTEXT TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASEORDERDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
COMPANYCODE TYPE STRING,
STORAGELOCATION TYPE STRING,
ISRETURNSITEM TYPE STRING,
SERVICEPERFORMER TYPE STRING,
PRODUCTTYPE TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
NUMBEROFPURCHASEORDERITEMS TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
NETAMOUNT TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
ORDERQUANTITY TYPE STRING,
RETURNITEMS TYPE STRING,
ISCOMPLETELYDELIVERED TYPE STRING,
GOODSRECEIPTISEXPECTED TYPE STRING,
TARGETQUANTITY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
ISFINALLYINVOICED TYPE STRING,
INVOICEISEXPECTED TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
ISGRIROPENITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCNTRLPURORDITM_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_PCNTRLPURORDITM_STR-MANDT sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDER sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDERITEM sy-vline 
WA_PCNTRLPURORDITM_STR-EXTSOURCESYSTEM sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDERITEMTEXT sy-vline 
WA_PCNTRLPURORDITM_STR-SUPPLIER sy-vline 
WA_PCNTRLPURORDITM_STR-SUPPLYINGPLANT sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASINGORGANIZATION sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASINGGROUP sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDERDATE sy-vline 
WA_PCNTRLPURORDITM_STR-CREATEDBYUSER sy-vline 
WA_PCNTRLPURORDITM_STR-CREATIONDATE sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDERTYPE sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_PCNTRLPURORDITM_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_PCNTRLPURORDITM_STR-MATERIALGROUP sy-vline 
WA_PCNTRLPURORDITM_STR-MATERIAL sy-vline 
WA_PCNTRLPURORDITM_STR-PLANT sy-vline 
WA_PCNTRLPURORDITM_STR-COMPANYCODE sy-vline 
WA_PCNTRLPURORDITM_STR-STORAGELOCATION sy-vline 
WA_PCNTRLPURORDITM_STR-ISRETURNSITEM sy-vline 
WA_PCNTRLPURORDITM_STR-SERVICEPERFORMER sy-vline 
WA_PCNTRLPURORDITM_STR-PRODUCTTYPE sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEREQUISITION sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_PCNTRLPURORDITM_STR-DOCUMENTCURRENCY sy-vline 
WA_PCNTRLPURORDITM_STR-NUMBEROFPURCHASEORDERITEMS sy-vline 
WA_PCNTRLPURORDITM_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_PCNTRLPURORDITM_STR-NETAMOUNT sy-vline 
WA_PCNTRLPURORDITM_STR-NETPRICEAMOUNT sy-vline 
WA_PCNTRLPURORDITM_STR-ORDERQUANTITY sy-vline 
WA_PCNTRLPURORDITM_STR-RETURNITEMS sy-vline 
WA_PCNTRLPURORDITM_STR-ISCOMPLETELYDELIVERED sy-vline 
WA_PCNTRLPURORDITM_STR-GOODSRECEIPTISEXPECTED sy-vline 
WA_PCNTRLPURORDITM_STR-TARGETQUANTITY sy-vline 
WA_PCNTRLPURORDITM_STR-ORDERPRICEUNIT sy-vline 
WA_PCNTRLPURORDITM_STR-ISFINALLYINVOICED sy-vline 
WA_PCNTRLPURORDITM_STR-INVOICEISEXPECTED sy-vline 
WA_PCNTRLPURORDITM_STR-NETPRICEQUANTITY sy-vline 
WA_PCNTRLPURORDITM_STR-ISGRIROPENITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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