ABAP Select data from SAP table PCONTRACTITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCONTRACTITEM
*  INTO TABLE @DATA(IT_PCONTRACTITEM2).
*--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_PCONTRACTITEM INDEX 1 INTO DATA(WA_PCONTRACTITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCONTRACTITEM>-MANDT = 1.
<PCONTRACTITEM>-TRADINGCONTRACTNUMBER = 1.
<PCONTRACTITEM>-TRADINGCONTRACTITEM = 1.
<PCONTRACTITEM>-TRDGCONTRCOMMODITYSUBITEM = 1.
<PCONTRACTITEM>-CONTRACTMATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCONTRACTITEM-CONTRACTPLANT, sy-vline,
  WA_PCONTRACTITEM-CONTRACTSTORAGELOCATION, sy-vline,
  WA_PCONTRACTITEM-TRDGCONTRSALESQUANTITY, sy-vline,
  WA_PCONTRACTITEM-BASEUNIT, sy-vline,
  WA_PCONTRACTITEM-PRCGCNDNTRADINGCONTRCURRENCY, sy-vline,
  WA_PCONTRACTITEM-TRADINGCONTRACTSALESCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCONTRACTITEM 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_PCONTRACTITEM 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_PCONTRACTITEM INTO WA_PCONTRACTITEM.


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

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

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

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

*Conversion exit ALPHA, internal->external for field ELIFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCONTRACTITEM-ELIFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONTRACTITEM-ELIFN.
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_PCONTRACTITEM_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
TRDGCONTRCOMMODITYSUBITEM TYPE STRING,
CONTRACTMATERIAL TYPE STRING,
CONTRACTPLANT TYPE STRING,
CONTRACTSTORAGELOCATION TYPE STRING,
TRDGCONTRSALESQUANTITY TYPE STRING,
BASEUNIT TYPE STRING,
PRCGCNDNTRADINGCONTRCURRENCY TYPE STRING,
TRADINGCONTRACTSALESCURRENCY TYPE STRING,
COMMODITY TYPE STRING,
PROFITCENTER TYPE STRING,
KNUMV_SD TYPE STRING,
TPOSN_SUB_1 TYPE STRING,
ELIFN TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
INCO1_MM TYPE STRING,
INCO1_SD TYPE STRING,
INCOV_SD TYPE STRING,
INCO2_L_SD TYPE STRING,
INCO3_L_SD TYPE STRING,
KNUMV_MM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCONTRACTITEM_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_PCONTRACTITEM_STR-MANDT sy-vline 
WA_PCONTRACTITEM_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_PCONTRACTITEM_STR-TRADINGCONTRACTITEM sy-vline 
WA_PCONTRACTITEM_STR-TRDGCONTRCOMMODITYSUBITEM sy-vline 
WA_PCONTRACTITEM_STR-CONTRACTMATERIAL sy-vline 
WA_PCONTRACTITEM_STR-CONTRACTPLANT sy-vline 
WA_PCONTRACTITEM_STR-CONTRACTSTORAGELOCATION sy-vline 
WA_PCONTRACTITEM_STR-TRDGCONTRSALESQUANTITY sy-vline 
WA_PCONTRACTITEM_STR-BASEUNIT sy-vline 
WA_PCONTRACTITEM_STR-PRCGCNDNTRADINGCONTRCURRENCY sy-vline 
WA_PCONTRACTITEM_STR-TRADINGCONTRACTSALESCURRENCY sy-vline 
WA_PCONTRACTITEM_STR-COMMODITY sy-vline 
WA_PCONTRACTITEM_STR-PROFITCENTER sy-vline 
WA_PCONTRACTITEM_STR-KNUMV_SD sy-vline 
WA_PCONTRACTITEM_STR-TPOSN_SUB_1 sy-vline 
WA_PCONTRACTITEM_STR-ELIFN sy-vline 
WA_PCONTRACTITEM_STR-EKORG sy-vline 
WA_PCONTRACTITEM_STR-EKGRP sy-vline 
WA_PCONTRACTITEM_STR-INCO1_MM sy-vline 
WA_PCONTRACTITEM_STR-INCO1_SD sy-vline 
WA_PCONTRACTITEM_STR-INCOV_SD sy-vline 
WA_PCONTRACTITEM_STR-INCO2_L_SD sy-vline 
WA_PCONTRACTITEM_STR-INCO3_L_SD sy-vline 
WA_PCONTRACTITEM_STR-KNUMV_MM sy-vline      INTO ld_text SEPARATED BY SPACE.

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