ABAP Select data from SAP table PFIFYEARWEEK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFIFYEARWEEK
*  INTO TABLE @DATA(IT_PFIFYEARWEEK2).
*--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_PFIFYEARWEEK INDEX 1 INTO DATA(WA_PFIFYEARWEEK2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFIFYEARWEEK-FISCALYEARENDDATE, sy-vline,
  WA_PFIFYEARWEEK-FISCALYEARWEEK, sy-vline,
  WA_PFIFYEARWEEK-FISCALWEEKSTARTDATE, sy-vline,
  WA_PFIFYEARWEEK-FISCALWEEKENDDATE, sy-vline,
  WA_PFIFYEARWEEK-FISCALWEEKCONSECUTIVENUMBER, sy-vline,
  WA_PFIFYEARWEEK-NEXTFISCALWEEK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFIFYEARWEEK 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_PFIFYEARWEEK 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_PFIFYEARWEEK INTO WA_PFIFYEARWEEK.


*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_PFIFYEARWEEK-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFIFYEARWEEK-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_PFIFYEARWEEK_STR, 
MANDT TYPE STRING,
FISCALYEARVARIANT TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALWEEK TYPE STRING,
FISCALYEARSTARTDATE TYPE STRING,
FISCALYEARENDDATE TYPE STRING,
FISCALYEARWEEK TYPE STRING,
FISCALWEEKSTARTDATE TYPE STRING,
FISCALWEEKENDDATE TYPE STRING,
FISCALWEEKCONSECUTIVENUMBER TYPE STRING,
NEXTFISCALWEEK TYPE STRING,
NEXTFISCALYEARWEEK TYPE STRING,
NEXTFISCALWEEKSTARTDATE TYPE STRING,
NEXTFISCALWEEKENDDATE TYPE STRING,
NEXTFSCLWEEKCONSECUTIVENMBR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFIFYEARWEEK_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_PFIFYEARWEEK_STR-MANDT sy-vline 
WA_PFIFYEARWEEK_STR-FISCALYEARVARIANT sy-vline 
WA_PFIFYEARWEEK_STR-FISCALYEAR sy-vline 
WA_PFIFYEARWEEK_STR-FISCALWEEK sy-vline 
WA_PFIFYEARWEEK_STR-FISCALYEARSTARTDATE sy-vline 
WA_PFIFYEARWEEK_STR-FISCALYEARENDDATE sy-vline 
WA_PFIFYEARWEEK_STR-FISCALYEARWEEK sy-vline 
WA_PFIFYEARWEEK_STR-FISCALWEEKSTARTDATE sy-vline 
WA_PFIFYEARWEEK_STR-FISCALWEEKENDDATE sy-vline 
WA_PFIFYEARWEEK_STR-FISCALWEEKCONSECUTIVENUMBER sy-vline 
WA_PFIFYEARWEEK_STR-NEXTFISCALWEEK sy-vline 
WA_PFIFYEARWEEK_STR-NEXTFISCALYEARWEEK sy-vline 
WA_PFIFYEARWEEK_STR-NEXTFISCALWEEKSTARTDATE sy-vline 
WA_PFIFYEARWEEK_STR-NEXTFISCALWEEKENDDATE sy-vline 
WA_PFIFYEARWEEK_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.