ABAP Select data from SAP table PTRDGCTRVUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRDGCTRVUS
*  INTO TABLE @DATA(IT_PTRDGCTRVUS2).
*--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_PTRDGCTRVUS INDEX 1 INTO DATA(WA_PTRDGCTRVUS2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRDGCTRVUS-PURCHASINGORGANIZATION, sy-vline,
  WA_PTRDGCTRVUS-PURCHASINGGROUP, sy-vline,
  WA_PTRDGCTRVUS-TRADINGCONTRACTCURRENCY, sy-vline,
  WA_PTRDGCTRVUS-TRDGCONTRSALESINCOTERMSVERSION, sy-vline,
  WA_PTRDGCTRVUS-TRDGCONTRSLSINCOTERMSLOC1TEXT, sy-vline,
  WA_PTRDGCTRVUS-TRDGCONTRSLSINCOTERMSLOC2TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRDGCTRVUS 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_PTRDGCTRVUS 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_PTRDGCTRVUS INTO WA_PTRDGCTRVUS.


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

*Conversion exit ALPHA, internal->external for field PURCHASEORDERSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTRDGCTRVUS-PURCHASEORDERSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTRDGCTRVUS-PURCHASEORDERSUPPLIER.
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_PTRDGCTRVUS_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
TRDGCONTRCOMMODITYSUBITEM TYPE STRING,
PURCHASEORDERSUPPLIER TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
TRADINGCONTRACTCURRENCY TYPE STRING,
TRDGCONTRSALESINCOTERMSVERSION TYPE STRING,
TRDGCONTRSLSINCOTERMSLOC1TEXT TYPE STRING,
TRDGCONTRSLSINCOTERMSLOC2TEXT TYPE STRING,
TRDGCONTRPURGINCOTERMSVERSION TYPE STRING,
TRDGCONTRPURGINCOTERMSLOC1TEXT TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
ACMPURGINCOTERMSPART1 TYPE STRING,
ACMSLSINCOTERMSPART1 TYPE STRING,
ACMSUPPLYINGPLANT TYPE STRING,
ACMREFERENCEPO TYPE STRING,
ACMYOURREFERENCE TYPE STRING,
ACMCUSTOMERREFERENCE TYPE STRING,
EKOTX TYPE STRING,
EKNAM TYPE STRING,
INCOTERMSCLASSIFICATIONNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRDGCTRVUS_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_PTRDGCTRVUS_STR-MANDT sy-vline 
WA_PTRDGCTRVUS_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_PTRDGCTRVUS_STR-TRADINGCONTRACTITEM sy-vline 
WA_PTRDGCTRVUS_STR-TRDGCONTRCOMMODITYSUBITEM sy-vline 
WA_PTRDGCTRVUS_STR-PURCHASEORDERSUPPLIER sy-vline 
WA_PTRDGCTRVUS_STR-PURCHASINGORGANIZATION sy-vline 
WA_PTRDGCTRVUS_STR-PURCHASINGGROUP sy-vline 
WA_PTRDGCTRVUS_STR-TRADINGCONTRACTCURRENCY sy-vline 
WA_PTRDGCTRVUS_STR-TRDGCONTRSALESINCOTERMSVERSION sy-vline 
WA_PTRDGCTRVUS_STR-TRDGCONTRSLSINCOTERMSLOC1TEXT sy-vline 
WA_PTRDGCTRVUS_STR-TRDGCONTRSLSINCOTERMSLOC2TEXT sy-vline 
WA_PTRDGCTRVUS_STR-TRDGCONTRPURGINCOTERMSVERSION sy-vline 
WA_PTRDGCTRVUS_STR-TRDGCONTRPURGINCOTERMSLOC1TEXT sy-vline 
WA_PTRDGCTRVUS_STR-PRICINGDOCUMENT sy-vline 
WA_PTRDGCTRVUS_STR-ACMPURGINCOTERMSPART1 sy-vline 
WA_PTRDGCTRVUS_STR-ACMSLSINCOTERMSPART1 sy-vline 
WA_PTRDGCTRVUS_STR-ACMSUPPLYINGPLANT sy-vline 
WA_PTRDGCTRVUS_STR-ACMREFERENCEPO sy-vline 
WA_PTRDGCTRVUS_STR-ACMYOURREFERENCE sy-vline 
WA_PTRDGCTRVUS_STR-ACMCUSTOMERREFERENCE sy-vline 
WA_PTRDGCTRVUS_STR-EKOTX sy-vline 
WA_PTRDGCTRVUS_STR-EKNAM sy-vline 
WA_PTRDGCTRVUS_STR-INCOTERMSCLASSIFICATIONNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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