ABAP Select data from SAP table PEMPFSEMPLOY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEMPFSEMPLOY
*  INTO TABLE @DATA(IT_PEMPFSEMPLOY2).
*--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_PEMPFSEMPLOY INDEX 1 INTO DATA(WA_PEMPFSEMPLOY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEMPFSEMPLOY>-MANDT = 1.
<PEMPFSEMPLOY>-EMPLOYMENTINTERNALID = 1.
<PEMPFSEMPLOY>-STARTDATE = 1.
<PEMPFSEMPLOY>-PERSONNELNUMBER = 1.
<PEMPFSEMPLOY>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEMPFSEMPLOY-COMPANYCODENAME, sy-vline,
  WA_PEMPFSEMPLOY-ENDDATE, sy-vline,
  WA_PEMPFSEMPLOY-JOB, sy-vline,
  WA_PEMPFSEMPLOY-JOBCODE, sy-vline,
  WA_PEMPFSEMPLOY-MANAGERFULLNAME, sy-vline,
  WA_PEMPFSEMPLOY-MANAGEREMPLOYEE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEMPFSEMPLOY 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_PEMPFSEMPLOY 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_PEMPFSEMPLOY INTO WA_PEMPFSEMPLOY.


*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 ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEMPFSEMPLOY-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEMPFSEMPLOY-COSTCENTER.
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_PEMPFSEMPLOY_STR, 
MANDT TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
STARTDATE TYPE STRING,
PERSONNELNUMBER TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
ENDDATE TYPE STRING,
JOB TYPE STRING,
JOBCODE TYPE STRING,
MANAGERFULLNAME TYPE STRING,
MANAGEREMPLOYEE TYPE STRING,
DEPARTMENT TYPE STRING,
ORGANIZATIONALUNITCODE TYPE STRING,
COSTCENTER TYPE STRING,
JOBNAME TYPE STRING,
DEPARTMENTNAME TYPE STRING,
COSTCENTERNAME TYPE STRING,
NAME TYPE STRING,
EMPLOYEEISACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEMPFSEMPLOY_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_PEMPFSEMPLOY_STR-MANDT sy-vline 
WA_PEMPFSEMPLOY_STR-EMPLOYMENTINTERNALID sy-vline 
WA_PEMPFSEMPLOY_STR-STARTDATE sy-vline 
WA_PEMPFSEMPLOY_STR-PERSONNELNUMBER sy-vline 
WA_PEMPFSEMPLOY_STR-COMPANYCODE sy-vline 
WA_PEMPFSEMPLOY_STR-COMPANYCODENAME sy-vline 
WA_PEMPFSEMPLOY_STR-ENDDATE sy-vline 
WA_PEMPFSEMPLOY_STR-JOB sy-vline 
WA_PEMPFSEMPLOY_STR-JOBCODE sy-vline 
WA_PEMPFSEMPLOY_STR-MANAGERFULLNAME sy-vline 
WA_PEMPFSEMPLOY_STR-MANAGEREMPLOYEE sy-vline 
WA_PEMPFSEMPLOY_STR-DEPARTMENT sy-vline 
WA_PEMPFSEMPLOY_STR-ORGANIZATIONALUNITCODE sy-vline 
WA_PEMPFSEMPLOY_STR-COSTCENTER sy-vline 
WA_PEMPFSEMPLOY_STR-JOBNAME sy-vline 
WA_PEMPFSEMPLOY_STR-DEPARTMENTNAME sy-vline 
WA_PEMPFSEMPLOY_STR-COSTCENTERNAME sy-vline 
WA_PEMPFSEMPLOY_STR-NAME sy-vline 
WA_PEMPFSEMPLOY_STR-EMPLOYEEISACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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