ABAP Select data from SAP table IFIFCALNXTPERDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFIFCALNXTPERDS
*  INTO TABLE @DATA(IT_IFIFCALNXTPERDS2).
*--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_IFIFCALNXTPERDS INDEX 1 INTO DATA(WA_IFIFCALNXTPERDS2).


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

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

ENDLOOP.

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

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


*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_IFIFCALNXTPERDS-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFIFCALNXTPERDS-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field NEXTFISCALPERIODFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFIFCALNXTPERDS-NEXTFISCALPERIODFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFIFCALNXTPERDS-NEXTFISCALPERIODFISCALYEAR.
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_IFIFCALNXTPERDS_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,
NEXTFISCALYEAR TYPE STRING,
NEXTFISCALYEARSTARTDATE TYPE STRING,
NEXTFISCALYEARENDDATE TYPE STRING,
NEXTFISCALPERIOD TYPE STRING,
NEXTFISCALPERIODSTARTDATE TYPE STRING,
NEXTFISCALPERIODENDDATE TYPE STRING,
NEXTFISCALPERIODFISCALYEAR TYPE STRING,
NEXTFSCLPERIODFSCLYEARSTRTDATE TYPE STRING,
NEXTFSCLPERIODFSCLYEARENDDATE TYPE STRING,
NEXTFISCALQUARTER TYPE STRING,
NEXTFISCALQUARTERSTARTDATE TYPE STRING,
NEXTFISCALQUARTERENDDATE TYPE STRING,
NEXTFISCALWEEK TYPE STRING,
NEXTFISCALWEEKSTARTDATE TYPE STRING,
NEXTFISCALWEEKENDDATE TYPE STRING,
NEXTFISCALYEARPERIOD TYPE STRING,
NEXTFISCALYEARQUARTER TYPE STRING,
NEXTFISCALYEARWEEK TYPE STRING,
FISCALYEARCONSECUTIVENUMBER TYPE STRING,
FISCALPERIODCONSECUTIVENUMBER TYPE STRING,
FISCALQUARTERCONSECUTIVENUMBER TYPE STRING,
FISCALWEEKCONSECUTIVENUMBER TYPE STRING,
NEXTFISCALYEARCONSECUTIVENMBR TYPE STRING,
NEXTFSCLPERIODCONSECUTIVENMBR TYPE STRING,
NEXTFSCLQUARTERCONSECUTIVENMBR TYPE STRING,
NEXTFSCLWEEKCONSECUTIVENMBR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFIFCALNXTPERDS_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_IFIFCALNXTPERDS_STR-MANDT sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARVARIANT sy-vline 
WA_IFIFCALNXTPERDS_STR-CALENDARDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEAR sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALPERIOD sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALPERIODSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALPERIODENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALQUARTER sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALQUARTERSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALQUARTERENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALWEEK sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALWEEKSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALWEEKENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARPERIOD sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARQUARTER sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARWEEK sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEAR sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEARSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEARENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALPERIOD sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALPERIODSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALPERIODENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALPERIODFISCALYEAR sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFSCLPERIODFSCLYEARSTRTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFSCLPERIODFSCLYEARENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALQUARTER sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALQUARTERSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALQUARTERENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALWEEK sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALWEEKSTARTDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALWEEKENDDATE sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEARPERIOD sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEARQUARTER sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEARWEEK sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALYEARCONSECUTIVENUMBER sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALPERIODCONSECUTIVENUMBER sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALQUARTERCONSECUTIVENUMBER sy-vline 
WA_IFIFCALNXTPERDS_STR-FISCALWEEKCONSECUTIVENUMBER sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFISCALYEARCONSECUTIVENMBR sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFSCLPERIODCONSECUTIVENMBR sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFSCLQUARTERCONSECUTIVENMBR sy-vline 
WA_IFIFCALNXTPERDS_STR-NEXTFSCLWEEKCONSECUTIVENMBR sy-vline      INTO ld_text SEPARATED BY SPACE.

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