ABAP Select data from SAP table PCNTXIIPTITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCNTXIIPTITM
*  INTO TABLE @DATA(IT_PCNTXIIPTITM2).
*--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_PCNTXIIPTITM INDEX 1 INTO DATA(WA_PCNTXIIPTITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCNTXIIPTITM>-MANDT = 1.
<PCNTXIIPTITM>-TAXINVOICEITEMUUID = 1.
<PCNTXIIPTITM>-CN_TAXINVCUUID = 1.
<PCNTXIIPTITM>-CN_TAXINVCCODE = 1.
<PCNTXIIPTITM>-CN_TAXINVCNMBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCNTXIIPTITM-TAXINVOICEITEM, sy-vline,
  WA_PCNTXIIPTITM-TAXINVOICEITEMGOODSSERVICENAME, sy-vline,
  WA_PCNTXIIPTITM-TAXINVOICEITEMGOODSNUMBER, sy-vline,
  WA_PCNTXIIPTITM-TAXINVOICEITEMSPECMODEL, sy-vline,
  WA_PCNTXIIPTITM-UNITOFMEASURE, sy-vline,
  WA_PCNTXIIPTITM-TAXINVOICEITEMUNITDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCNTXIIPTITM 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_PCNTXIIPTITM 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_PCNTXIIPTITM INTO WA_PCNTXIIPTITM.


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

*Conversion exit AC172, internal->external for field TAXINVOICEITEMNETAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PCNTXIIPTITM-TAXINVOICEITEMNETAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCNTXIIPTITM-TAXINVOICEITEMNETAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXINVOICEITEMTAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PCNTXIIPTITM-TAXINVOICEITEMTAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCNTXIIPTITM-TAXINVOICEITEMTAXAMOUNT.
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_PCNTXIIPTITM_STR, 
MANDT TYPE STRING,
TAXINVOICEITEMUUID TYPE STRING,
CN_TAXINVCUUID TYPE STRING,
CN_TAXINVCCODE TYPE STRING,
CN_TAXINVCNMBR TYPE STRING,
TAXINVOICEITEM TYPE STRING,
TAXINVOICEITEMGOODSSERVICENAME TYPE STRING,
TAXINVOICEITEMGOODSNUMBER TYPE STRING,
TAXINVOICEITEMSPECMODEL TYPE STRING,
UNITOFMEASURE TYPE STRING,
TAXINVOICEITEMUNITDESCRIPTION TYPE STRING,
TAXINVOICEITEMQUANTITY TYPE STRING,
TAXINVOICEITEMNETUNITPRICE TYPE STRING,
TAXINVOICEITEMNETAMOUNT TYPE STRING,
TAXINVOICEITEMTAXRATE TYPE STRING,
TAXINVOICEITEMTAXAMOUNT TYPE STRING,
TAXINVOICEITEMTOLLCARLICPLATE TYPE STRING,
TAXINVOICEITEMTOLLCARCATEGORY TYPE STRING,
TAXINVOICEITEMTOLLSTRTDATETIME TYPE STRING,
TAXINVOICEITEMTOLLENDDATETIME TYPE STRING,
ISDELETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCNTXIIPTITM_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_PCNTXIIPTITM_STR-MANDT sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMUUID sy-vline 
WA_PCNTXIIPTITM_STR-CN_TAXINVCUUID sy-vline 
WA_PCNTXIIPTITM_STR-CN_TAXINVCCODE sy-vline 
WA_PCNTXIIPTITM_STR-CN_TAXINVCNMBR sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEM sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMGOODSSERVICENAME sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMGOODSNUMBER sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMSPECMODEL sy-vline 
WA_PCNTXIIPTITM_STR-UNITOFMEASURE sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMUNITDESCRIPTION sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMQUANTITY sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMNETUNITPRICE sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMNETAMOUNT sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMTAXRATE sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMTAXAMOUNT sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMTOLLCARLICPLATE sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMTOLLCARCATEGORY sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMTOLLSTRTDATETIME sy-vline 
WA_PCNTXIIPTITM_STR-TAXINVOICEITEMTOLLENDDATETIME sy-vline 
WA_PCNTXIIPTITM_STR-ISDELETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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