ABAP Select data from SAP table P41_FORM_YEAD_EMPLOYEE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P41_FORM_YEAD_EMPLOYEE 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_FORM_YEAD_EMPLOYEE. 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_FORM_YEAD_EMPLOYEE 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_FORM_YEAD_EMPLOYEE TYPE STANDARD TABLE OF P41_FORM_YEAD_EMPLOYEE,
      WA_P41_FORM_YEAD_EMPLOYEE TYPE P41_FORM_YEAD_EMPLOYEE,
      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_FORM_YEAD_EMPLOYEE> TYPE P41_FORM_YEAD_EMPLOYEE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P41_FORM_YEAD_EMPLOYEE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P41_FORM_YEAD_EMPLOYEE
  INTO TABLE IT_P41_FORM_YEAD_EMPLOYEE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P41_FORM_YEAD_EMPLOYEE
*  INTO TABLE @DATA(IT_P41_FORM_YEAD_EMPLOYEE2).
*--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_FORM_YEAD_EMPLOYEE INDEX 1 INTO DATA(WA_P41_FORM_YEAD_EMPLOYEE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P41_FORM_YEAD_EMPLOYEE ASSIGNING <P41_FORM_YEAD_EMPLOYEE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P41_FORM_YEAD_EMPLOYEE>-PERNR1 = 1.
<P41_FORM_YEAD_EMPLOYEE>-REGNO1 = 1.
<P41_FORM_YEAD_EMPLOYEE>-PERNR = 1.
<P41_FORM_YEAD_EMPLOYEE>-ENAME = 1.
<P41_FORM_YEAD_EMPLOYEE>-ADDRE = 1.

ENDLOOP.

LOOP AT IT_P41_FORM_YEAD_EMPLOYEE INTO WA_P41_FORM_YEAD_EMPLOYEE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P41_FORM_YEAD_EMPLOYEE-BEGDA, sy-vline,
  WA_P41_FORM_YEAD_EMPLOYEE-ENDDA, sy-vline,
  WA_P41_FORM_YEAD_EMPLOYEE-EX_BEGDA, sy-vline,
  WA_P41_FORM_YEAD_EMPLOYEE-EX_ENDDA, sy-vline,
  WA_P41_FORM_YEAD_EMPLOYEE-HSHLD, sy-vline,
  WA_P41_FORM_YEAD_EMPLOYEE-N_HSHLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P41_FORM_YEAD_EMPLOYEE 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_FORM_YEAD_EMPLOYEE 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_FORM_YEAD_EMPLOYEE INTO WA_P41_FORM_YEAD_EMPLOYEE.


*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 REGNO, internal->external for field REGNO1
CALL FUNCTION 'CONVERSION_EXIT_REGNO_OUTPUT'
  EXPORTING
    input =                      WA_P41_FORM_YEAD_EMPLOYEE-REGNO1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P41_FORM_YEAD_EMPLOYEE-REGNO1.
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_FORM_YEAD_EMPLOYEE_STR, 
PERNR1 TYPE STRING,
REGNO1 TYPE STRING,
PERNR TYPE STRING,
ENAME TYPE STRING,
ADDRE TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
EX_BEGDA TYPE STRING,
EX_ENDDA TYPE STRING,
HSHLD TYPE STRING,
N_HSHLD TYPE STRING,
STATE TYPE STRING,
STCOD TYPE STRING,
RESIDENT TYPE STRING,
NON_RES TYPE STRING,
COUNTRY TYPE STRING,
CURCD TYPE STRING,
N_PDCHG TYPE STRING,
PDCHG TYPE STRING,
SIGNATURE TYPE STRING,
TEL TYPE STRING,
ITPCT1 TYPE STRING,
ITPCT2 TYPE STRING,
ITPCT3 TYPE STRING,
IYCIT TYPE STRING,
N_IYCIT TYPE STRING,
SIM_YEA_INFO TYPE STRING,
ORGTXC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P41_FORM_YEAD_EMPLOYEE_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_FORM_YEAD_EMPLOYEE_STR-PERNR1 sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-REGNO1 sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-PERNR sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ENAME sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ADDRE sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-BEGDA sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ENDDA sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-EX_BEGDA sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-EX_ENDDA sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-HSHLD sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-N_HSHLD sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-STATE sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-STCOD sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-RESIDENT sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-NON_RES sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-COUNTRY sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-CURCD sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-N_PDCHG sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-PDCHG sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-SIGNATURE sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-TEL sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ITPCT1 sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ITPCT2 sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ITPCT3 sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-IYCIT sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-N_IYCIT sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-SIM_YEA_INFO sy-vline 
WA_P41_FORM_YEAD_EMPLOYEE_STR-ORGTXC sy-vline      INTO ld_text SEPARATED BY SPACE.

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