ABAP Select data from SAP table ITRDGCONTRPART into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRDGCONTRPART
*  INTO TABLE @DATA(IT_ITRDGCONTRPART2).
*--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_ITRDGCONTRPART INDEX 1 INTO DATA(WA_ITRDGCONTRPART2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITRDGCONTRPART>-MANDT = 1.
<ITRDGCONTRPART>-TRADINGCONTRACTNUMBER = 1.
<ITRDGCONTRPART>-TRADINGCONTRACTITEM = 1.
<ITRDGCONTRPART>-PARTNERFUNCTION = 1.
<ITRDGCONTRPART>-PARTNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRDGCONTRPART-NUMBEROFCONTACTPERSONS, sy-vline,
  WA_ITRDGCONTRPART-PERSONNELNUMBER, sy-vline,
  WA_ITRDGCONTRPART-ACTIVEADDRESSID, sy-vline,
  WA_ITRDGCONTRPART-PARTNERFUNCTIONNAME, sy-vline,
  WA_ITRDGCONTRPART-BUSINESSPARTNERNAME1, sy-vline,
  WA_ITRDGCONTRPART-CUSTOMERSUPPLIERCITYNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRDGCONTRPART 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_ITRDGCONTRPART 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_ITRDGCONTRPART INTO WA_ITRDGCONTRPART.


*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_ITRDGCONTRPART-TRADINGCONTRACTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRDGCONTRPART-TRADINGCONTRACTNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field TRANSACTINGCTPTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITRDGCONTRPART-TRANSACTINGCTPTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRDGCONTRPART-TRANSACTINGCTPTY.
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_ITRDGCONTRPART_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
PARTNERFUNCTION TYPE STRING,
PARTNER TYPE STRING,
NUMBEROFCONTACTPERSONS TYPE STRING,
PERSONNELNUMBER TYPE STRING,
ACTIVEADDRESSID TYPE STRING,
PARTNERFUNCTIONNAME TYPE STRING,
BUSINESSPARTNERNAME1 TYPE STRING,
CUSTOMERSUPPLIERCITYNAME TYPE STRING,
CUSTOMERSUPPLIERPOSTALCODE TYPE STRING,
CUSTOMERSUPPLIERSTREETNAME TYPE STRING,
TRANSACTINGCTPTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRDGCONTRPART_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_ITRDGCONTRPART_STR-MANDT sy-vline 
WA_ITRDGCONTRPART_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_ITRDGCONTRPART_STR-TRADINGCONTRACTITEM sy-vline 
WA_ITRDGCONTRPART_STR-PARTNERFUNCTION sy-vline 
WA_ITRDGCONTRPART_STR-PARTNER sy-vline 
WA_ITRDGCONTRPART_STR-NUMBEROFCONTACTPERSONS sy-vline 
WA_ITRDGCONTRPART_STR-PERSONNELNUMBER sy-vline 
WA_ITRDGCONTRPART_STR-ACTIVEADDRESSID sy-vline 
WA_ITRDGCONTRPART_STR-PARTNERFUNCTIONNAME sy-vline 
WA_ITRDGCONTRPART_STR-BUSINESSPARTNERNAME1 sy-vline 
WA_ITRDGCONTRPART_STR-CUSTOMERSUPPLIERCITYNAME sy-vline 
WA_ITRDGCONTRPART_STR-CUSTOMERSUPPLIERPOSTALCODE sy-vline 
WA_ITRDGCONTRPART_STR-CUSTOMERSUPPLIERSTREETNAME sy-vline 
WA_ITRDGCONTRPART_STR-TRANSACTINGCTPTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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