ABAP Select data from SAP table PFIFCALNXTPERDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFIFCALNXTPERDS
*  INTO TABLE @DATA(IT_PFIFCALNXTPERDS2).
*--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_PFIFCALNXTPERDS INDEX 1 INTO DATA(WA_PFIFCALNXTPERDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFIFCALNXTPERDS>-MANDT = 1.
<PFIFCALNXTPERDS>-FISCALYEARVARIANT = 1.
<PFIFCALNXTPERDS>-CALENDARDATE = 1.
<PFIFCALNXTPERDS>-FISCALYEAR = 1.
<PFIFCALNXTPERDS>-FISCALYEARSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFIFCALNXTPERDS-FISCALYEARENDDATE, sy-vline,
  WA_PFIFCALNXTPERDS-FISCALPERIOD, sy-vline,
  WA_PFIFCALNXTPERDS-FISCALPERIODSTARTDATE, sy-vline,
  WA_PFIFCALNXTPERDS-FISCALPERIODENDDATE, sy-vline,
  WA_PFIFCALNXTPERDS-FISCALQUARTER, sy-vline,
  WA_PFIFCALNXTPERDS-FISCALQUARTERSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFIFCALNXTPERDS 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_PFIFCALNXTPERDS 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_PFIFCALNXTPERDS INTO WA_PFIFCALNXTPERDS.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PFIFCALNXTPERDS-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFCALNXTPERDS-FISCALYEAR.
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_PFIFCALNXTPERDS_STR, 
MANDT TYPE STRING,
FISCALYEARVARIANT TYPE STRING,
CALENDARDATE TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALYEARSTARTDATE TYPE STRING,
FISCALYEARENDDATE TYPE STRING,
FISCALPERIOD TYPE STRING,
FISCALPERIODSTARTDATE TYPE STRING,
FISCALPERIODENDDATE TYPE STRING,
FISCALQUARTER TYPE STRING,
FISCALQUARTERSTARTDATE TYPE STRING,
FISCALQUARTERENDDATE TYPE STRING,
FISCALWEEK TYPE STRING,
FISCALWEEKSTARTDATE TYPE STRING,
FISCALWEEKENDDATE TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
FISCALYEARQUARTER TYPE STRING,
FISCALYEARWEEK TYPE STRING,
FISCALYEARCONSECUTIVENUMBER TYPE STRING,
FISCALPERIODCONSECUTIVENUMBER TYPE STRING,
FISCALQUARTERCONSECUTIVENUMBER TYPE STRING,
FISCALWEEKCONSECUTIVENUMBER TYPE STRING,
NEXTFSCLPERIODCONSECUTIVENMBR TYPE STRING,
NEXTFSCLQUARTERCONSECUTIVENMBR TYPE STRING,
NEXTFSCLWEEKCONSECUTIVENMBR TYPE STRING,
NEXTFISCALYEARCONSECUTIVENMBR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFIFCALNXTPERDS_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_PFIFCALNXTPERDS_STR-MANDT sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARVARIANT sy-vline 
WA_PFIFCALNXTPERDS_STR-CALENDARDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEAR sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARSTARTDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARENDDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALPERIOD sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALPERIODSTARTDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALPERIODENDDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALQUARTER sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALQUARTERSTARTDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALQUARTERENDDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALWEEK sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALWEEKSTARTDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALWEEKENDDATE sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARPERIOD sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARQUARTER sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARWEEK sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALYEARCONSECUTIVENUMBER sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALPERIODCONSECUTIVENUMBER sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALQUARTERCONSECUTIVENUMBER sy-vline 
WA_PFIFCALNXTPERDS_STR-FISCALWEEKCONSECUTIVENUMBER sy-vline 
WA_PFIFCALNXTPERDS_STR-NEXTFSCLPERIODCONSECUTIVENMBR sy-vline 
WA_PFIFCALNXTPERDS_STR-NEXTFSCLQUARTERCONSECUTIVENMBR sy-vline 
WA_PFIFCALNXTPERDS_STR-NEXTFSCLWEEKCONSECUTIVENMBR sy-vline 
WA_PFIFCALNXTPERDS_STR-NEXTFISCALYEARCONSECUTIVENMBR sy-vline      INTO ld_text SEPARATED BY SPACE.

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