ABAP Select data from SAP table P41_P0539 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P41_P0539 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 P41_P0539. 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 P41_P0539 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_P41_P0539 TYPE STANDARD TABLE OF P41_P0539,
      WA_P41_P0539 TYPE P41_P0539,
      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: <P41_P0539> TYPE P41_P0539.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P41_P0539.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P41_P0539
  INTO TABLE IT_P41_P0539.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P41_P0539
*  INTO TABLE @DATA(IT_P41_P05392).
*--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_P41_P0539 INDEX 1 INTO DATA(WA_P41_P05392).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P41_P0539 ASSIGNING <P41_P0539>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P41_P0539>-EMPLOYEENO = 1.
<P41_P0539>-SUBTYPE = 1.
<P41_P0539>-OBJECTID = 1.
<P41_P0539>-LOCKINDIC = 1.
<P41_P0539>-VALIDEND = 1.

ENDLOOP.

LOOP AT IT_P41_P0539 INTO WA_P41_P0539.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P41_P0539-VALIDBEGIN, sy-vline,
  WA_P41_P0539-RECORDNR, sy-vline,
  WA_P41_P0539-NAME_FORMAT_INDICATOR, sy-vline,
  WA_P41_P0539-FIRSTNAME, sy-vline,
  WA_P41_P0539-LASTNAME, sy-vline,
  WA_P41_P0539-KNOWNAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P41_P0539 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_P41_P0539 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_P41_P0539 INTO WA_P41_P0539.


*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 PDATE, internal->external for field DATEOFBIRTH
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P41_P0539-DATEOFBIRTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P41_P0539-DATEOFBIRTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_P41_P0539-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P41_P0539-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REGNO, internal->external for field REGNUMBER
CALL FUNCTION 'CONVERSION_EXIT_REGNO_OUTPUT'
  EXPORTING
    input =                      WA_P41_P0539-REGNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P41_P0539-REGNUMBER.
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_P41_P0539_STR, 
EMPLOYEENO TYPE STRING,
SUBTYPE TYPE STRING,
OBJECTID TYPE STRING,
LOCKINDIC TYPE STRING,
VALIDEND TYPE STRING,
VALIDBEGIN TYPE STRING,
RECORDNR TYPE STRING,
NAME_FORMAT_INDICATOR TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
KNOWNAS TYPE STRING,
ACADEMICGRADE TYPE STRING,
SECONDACADGRADE TYPE STRING,
INITIALS TYPE STRING,
GENDER TYPE STRING,
DATEOFBIRTH TYPE STRING,
BIRTHPLACE TYPE STRING,
COUNTRYOFBIRTH TYPE STRING,
MARITALSTATUS TYPE STRING,
MARITALSTATUSSINCE TYPE STRING,
RELIGION TYPE STRING,
LANGUAGE TYPE STRING,
LANGUAGE_ISO TYPE STRING,
NATIONALITY TYPE STRING,
SECONDNATIONALITY TYPE STRING,
THIRDNATIONALITY TYPE STRING,
NAMEOFGENDER TYPE STRING,
NAMEOFCOUNTRYOFBIRTH TYPE STRING,
NAMEOFMARITALSTATUS TYPE STRING,
NAMEOFRELIGION TYPE STRING,
NAMEOFLANGUAGE TYPE STRING,
NAMEOFNATIONALITY TYPE STRING,
NAMEOFSECONDNATIONALITY TYPE STRING,
NAMEOFTHIRDNATIONALITY TYPE STRING,
LNHANGUL TYPE STRING,
FNHANGUL TYPE STRING,
LNCHINESE TYPE STRING,
FNCHINESE TYPE STRING,
REGNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P41_P0539_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_P41_P0539_STR-EMPLOYEENO sy-vline 
WA_P41_P0539_STR-SUBTYPE sy-vline 
WA_P41_P0539_STR-OBJECTID sy-vline 
WA_P41_P0539_STR-LOCKINDIC sy-vline 
WA_P41_P0539_STR-VALIDEND sy-vline 
WA_P41_P0539_STR-VALIDBEGIN sy-vline 
WA_P41_P0539_STR-RECORDNR sy-vline 
WA_P41_P0539_STR-NAME_FORMAT_INDICATOR sy-vline 
WA_P41_P0539_STR-FIRSTNAME sy-vline 
WA_P41_P0539_STR-LASTNAME sy-vline 
WA_P41_P0539_STR-KNOWNAS sy-vline 
WA_P41_P0539_STR-ACADEMICGRADE sy-vline 
WA_P41_P0539_STR-SECONDACADGRADE sy-vline 
WA_P41_P0539_STR-INITIALS sy-vline 
WA_P41_P0539_STR-GENDER sy-vline 
WA_P41_P0539_STR-DATEOFBIRTH sy-vline 
WA_P41_P0539_STR-BIRTHPLACE sy-vline 
WA_P41_P0539_STR-COUNTRYOFBIRTH sy-vline 
WA_P41_P0539_STR-MARITALSTATUS sy-vline 
WA_P41_P0539_STR-MARITALSTATUSSINCE sy-vline 
WA_P41_P0539_STR-RELIGION sy-vline 
WA_P41_P0539_STR-LANGUAGE sy-vline 
WA_P41_P0539_STR-LANGUAGE_ISO sy-vline 
WA_P41_P0539_STR-NATIONALITY sy-vline 
WA_P41_P0539_STR-SECONDNATIONALITY sy-vline 
WA_P41_P0539_STR-THIRDNATIONALITY sy-vline 
WA_P41_P0539_STR-NAMEOFGENDER sy-vline 
WA_P41_P0539_STR-NAMEOFCOUNTRYOFBIRTH sy-vline 
WA_P41_P0539_STR-NAMEOFMARITALSTATUS sy-vline 
WA_P41_P0539_STR-NAMEOFRELIGION sy-vline 
WA_P41_P0539_STR-NAMEOFLANGUAGE sy-vline 
WA_P41_P0539_STR-NAMEOFNATIONALITY sy-vline 
WA_P41_P0539_STR-NAMEOFSECONDNATIONALITY sy-vline 
WA_P41_P0539_STR-NAMEOFTHIRDNATIONALITY sy-vline 
WA_P41_P0539_STR-LNHANGUL sy-vline 
WA_P41_P0539_STR-FNHANGUL sy-vline 
WA_P41_P0539_STR-LNCHINESE sy-vline 
WA_P41_P0539_STR-FNCHINESE sy-vline 
WA_P41_P0539_STR-REGNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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