ABAP Select data from SAP table PKRNINVATITM01 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PKRNINVATITM01 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 PKRNINVATITM01. 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 PKRNINVATITM01 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_PKRNINVATITM01 TYPE STANDARD TABLE OF PKRNINVATITM01,
      WA_PKRNINVATITM01 TYPE PKRNINVATITM01,
      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: <PKRNINVATITM01> TYPE PKRNINVATITM01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PKRNINVATITM01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PKRNINVATITM01
  INTO TABLE IT_PKRNINVATITM01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKRNINVATITM01
*  INTO TABLE @DATA(IT_PKRNINVATITM012).
*--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_PKRNINVATITM01 INDEX 1 INTO DATA(WA_PKRNINVATITM012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PKRNINVATITM01 ASSIGNING <PKRNINVATITM01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKRNINVATITM01>-MANDT = 1.
<PKRNINVATITM01>-COMPANYCODE = 1.
<PKRNINVATITM01>-ACCOUNTINGDOCUMENT = 1.
<PKRNINVATITM01>-FISCALYEAR = 1.
<PKRNINVATITM01>-TAXITEM = 1.

ENDLOOP.

LOOP AT IT_PKRNINVATITM01 INTO WA_PKRNINVATITM01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKRNINVATITM01-TAXCALCULATIONPROCEDURE, sy-vline,
  WA_PKRNINVATITM01-TAXAMOUNTINCOCODECRCY, sy-vline,
  WA_PKRNINVATITM01-TAXBASEAMOUNTINCOCODECRCY, sy-vline,
  WA_PKRNINVATITM01-COMPANYCODECURRENCY, sy-vline,
  WA_PKRNINVATITM01-TAXCODE, sy-vline,
  WA_PKRNINVATITM01-SUPPLIER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKRNINVATITM01 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_PKRNINVATITM01 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_PKRNINVATITM01 INTO WA_PKRNINVATITM01.


*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 ACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PKRNINVATITM01-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKRNINVATITM01-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PKRNINVATITM01-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKRNINVATITM01-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PKRNINVATITM01-TAXAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKRNINVATITM01-TAXAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXBASEAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PKRNINVATITM01-TAXBASEAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKRNINVATITM01-TAXBASEAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PKRNINVATITM01-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKRNINVATITM01-SUPPLIER.
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_PKRNINVATITM01_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
TAXITEM TYPE STRING,
TAXCALCULATIONPROCEDURE TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
TAXCODE TYPE STRING,
SUPPLIER TYPE STRING,
BUSINESSPLACE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
REPORTINGDATE TYPE STRING,
KR_NONEDEDUCTIBLEINPUTVATCAT TYPE STRING,
KR_NONEDEDUCTIBLEINPUTVATSTS TYPE STRING,
CASELASTCHANGEDON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKRNINVATITM01_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_PKRNINVATITM01_STR-MANDT sy-vline 
WA_PKRNINVATITM01_STR-COMPANYCODE sy-vline 
WA_PKRNINVATITM01_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PKRNINVATITM01_STR-FISCALYEAR sy-vline 
WA_PKRNINVATITM01_STR-TAXITEM sy-vline 
WA_PKRNINVATITM01_STR-TAXCALCULATIONPROCEDURE sy-vline 
WA_PKRNINVATITM01_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PKRNINVATITM01_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PKRNINVATITM01_STR-COMPANYCODECURRENCY sy-vline 
WA_PKRNINVATITM01_STR-TAXCODE sy-vline 
WA_PKRNINVATITM01_STR-SUPPLIER sy-vline 
WA_PKRNINVATITM01_STR-BUSINESSPLACE sy-vline 
WA_PKRNINVATITM01_STR-TAXREPORTINGDATE sy-vline 
WA_PKRNINVATITM01_STR-REPORTINGDATE sy-vline 
WA_PKRNINVATITM01_STR-KR_NONEDEDUCTIBLEINPUTVATCAT sy-vline 
WA_PKRNINVATITM01_STR-KR_NONEDEDUCTIBLEINPUTVATSTS sy-vline 
WA_PKRNINVATITM01_STR-CASELASTCHANGEDON sy-vline      INTO ld_text SEPARATED BY SPACE.

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