ABAP Select data from SAP table PURCTRITNOTES_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PURCTRITNOTES_D
*  INTO TABLE @DATA(IT_PURCTRITNOTES_D2).
*--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_PURCTRITNOTES_D INDEX 1 INTO DATA(WA_PURCTRITNOTES_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PURCTRITNOTES_D>-MANDT = 1.
<PURCTRITNOTES_D>-ARCHOBJECTNUMBERDRAFTUUID = 1.
<PURCTRITNOTES_D>-PURCHASECONTRACTITEMDRAFTUUID = 1.
<PURCTRITNOTES_D>-PURCHASECONTRACTDRAFTUUID = 1.
<PURCTRITNOTES_D>-ACTIVEARCHOBJECTNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PURCTRITNOTES_D-ACTIVEPURCHASECONTRACT, sy-vline,
  WA_PURCTRITNOTES_D-ACTIVEPURCHASECONTRACTITEM, sy-vline,
  WA_PURCTRITNOTES_D-ACTIVETECHNICALOBJECTTYPE, sy-vline,
  WA_PURCTRITNOTES_D-ACTIVEDOCUMENTTEXT, sy-vline,
  WA_PURCTRITNOTES_D-ACTIVELANGUAGE, sy-vline,
  WA_PURCTRITNOTES_D-NOTEDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PURCTRITNOTES_D 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_PURCTRITNOTES_D 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_PURCTRITNOTES_D INTO WA_PURCTRITNOTES_D.


*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 ISOLA, internal->external for field ACTIVELANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PURCTRITNOTES_D-ACTIVELANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PURCTRITNOTES_D-ACTIVELANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PURCTRITNOTES_D-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PURCTRITNOTES_D-LANGUAGE.
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_PURCTRITNOTES_D_STR, 
MANDT TYPE STRING,
ARCHOBJECTNUMBERDRAFTUUID TYPE STRING,
PURCHASECONTRACTITEMDRAFTUUID TYPE STRING,
PURCHASECONTRACTDRAFTUUID TYPE STRING,
ACTIVEARCHOBJECTNUMBER TYPE STRING,
ACTIVEPURCHASECONTRACT TYPE STRING,
ACTIVEPURCHASECONTRACTITEM TYPE STRING,
ACTIVETECHNICALOBJECTTYPE TYPE STRING,
ACTIVEDOCUMENTTEXT TYPE STRING,
ACTIVELANGUAGE TYPE STRING,
NOTEDESCRIPTION TYPE STRING,
ARCHITECTURALOBJECTNUMBER TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
TECHNICALOBJECTTYPE TYPE STRING,
DOCUMENTTEXT TYPE STRING,
LANGUAGE TYPE STRING,
HASACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PURCTRITNOTES_D_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_PURCTRITNOTES_D_STR-MANDT sy-vline 
WA_PURCTRITNOTES_D_STR-ARCHOBJECTNUMBERDRAFTUUID sy-vline 
WA_PURCTRITNOTES_D_STR-PURCHASECONTRACTITEMDRAFTUUID sy-vline 
WA_PURCTRITNOTES_D_STR-PURCHASECONTRACTDRAFTUUID sy-vline 
WA_PURCTRITNOTES_D_STR-ACTIVEARCHOBJECTNUMBER sy-vline 
WA_PURCTRITNOTES_D_STR-ACTIVEPURCHASECONTRACT sy-vline 
WA_PURCTRITNOTES_D_STR-ACTIVEPURCHASECONTRACTITEM sy-vline 
WA_PURCTRITNOTES_D_STR-ACTIVETECHNICALOBJECTTYPE sy-vline 
WA_PURCTRITNOTES_D_STR-ACTIVEDOCUMENTTEXT sy-vline 
WA_PURCTRITNOTES_D_STR-ACTIVELANGUAGE sy-vline 
WA_PURCTRITNOTES_D_STR-NOTEDESCRIPTION sy-vline 
WA_PURCTRITNOTES_D_STR-ARCHITECTURALOBJECTNUMBER sy-vline 
WA_PURCTRITNOTES_D_STR-PURCHASECONTRACT sy-vline 
WA_PURCTRITNOTES_D_STR-PURCHASECONTRACTITEM sy-vline 
WA_PURCTRITNOTES_D_STR-TECHNICALOBJECTTYPE sy-vline 
WA_PURCTRITNOTES_D_STR-DOCUMENTTEXT sy-vline 
WA_PURCTRITNOTES_D_STR-LANGUAGE sy-vline 
WA_PURCTRITNOTES_D_STR-HASACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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