ABAP Select data from SAP table FAC_S_FISCAL_PREVPERDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_S_FISCAL_PREVPERDS
*  INTO TABLE @DATA(IT_FAC_S_FISCAL_PREVPERDS2).
*--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_FAC_S_FISCAL_PREVPERDS INDEX 1 INTO DATA(WA_FAC_S_FISCAL_PREVPERDS2).


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

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

ENDLOOP.

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

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


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

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

*Conversion exit GJAHR, internal->external for field PREVIOUSFISCALPERIODFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_FISCAL_PREVPERDS-PREVIOUSFISCALPERIODFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_FISCAL_PREVPERDS-PREVIOUSFISCALPERIODFISCALYEAR.
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_FAC_S_FISCAL_PREVPERDS_STR, 
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,
PREVIOUSFISCALPERIOD TYPE STRING,
PREVIOUSFISCALPERIODSTARTDATE TYPE STRING,
PREVIOUSFISCALPERIODENDDATE TYPE STRING,
PREVIOUSFISCALYEAR TYPE STRING,
PREVIOUSFISCALYEARSTARTDATE TYPE STRING,
PREVIOUSFISCALYEARENDDATE TYPE STRING,
PREVIOUSFISCALPERIODFISCALYEAR TYPE STRING,
PREVFSCLPERIODFSCLYEARSTRTDATE TYPE STRING,
PREVFSCLPERIODFSCLYEARENDDATE TYPE STRING,
PREVIOUSFISCALQUARTER TYPE STRING,
PREVIOUSFISCALQUARTERSTARTDATE TYPE STRING,
PREVIOUSFISCALQUARTERENDDATE TYPE STRING,
PREVIOUSFISCALWEEK TYPE STRING,
PREVIOUSFISCALWEEKSTARTDATE TYPE STRING,
PREVIOUSFISCALWEEKENDDATE TYPE STRING,
PREVIOUSFISCALYEARPERIOD TYPE STRING,
PREVIOUSFISCALYEARQUARTER TYPE STRING,
PREVIOUSFISCALYEARWEEK TYPE STRING,
FISCALYEARCONSECUTIVENUMBER TYPE STRING,
FISCALPERIODCONSECUTIVENUMBER TYPE STRING,
FISCALQUARTERCONSECUTIVENUMBER TYPE STRING,
FISCALWEEKCONSECUTIVENUMBER TYPE STRING,
PREVFISCALYEARCONSECUTIVENMBR TYPE STRING,
PREVFSCLPERIODCONSECUTIVENMBR TYPE STRING,
PREVFSCLQUARTERCONSECUTIVENMBR TYPE STRING,
PREVFSCLWEEKCONSECUTIVENMBR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_S_FISCAL_PREVPERDS_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_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARVARIANT sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-CALENDARDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEAR sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALPERIOD sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALPERIODSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALPERIODENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALQUARTER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALQUARTERSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALQUARTERENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALWEEK sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALWEEKSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALWEEKENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARPERIOD sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARQUARTER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARWEEK sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALPERIOD sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALPERIODSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALPERIODENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALYEAR sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALYEARSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALYEARENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALPERIODFISCALYEAR sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVFSCLPERIODFSCLYEARSTRTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVFSCLPERIODFSCLYEARENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALQUARTER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALQUARTERSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALQUARTERENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALWEEK sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALWEEKSTARTDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALWEEKENDDATE sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALYEARPERIOD sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALYEARQUARTER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVIOUSFISCALYEARWEEK sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALYEARCONSECUTIVENUMBER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALPERIODCONSECUTIVENUMBER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALQUARTERCONSECUTIVENUMBER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-FISCALWEEKCONSECUTIVENUMBER sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVFISCALYEARCONSECUTIVENMBR sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVFSCLPERIODCONSECUTIVENMBR sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVFSCLQUARTERCONSECUTIVENMBR sy-vline 
WA_FAC_S_FISCAL_PREVPERDS_STR-PREVFSCLWEEKCONSECUTIVENMBR sy-vline      INTO ld_text SEPARATED BY SPACE.

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