ABAP Select data from SAP table PEMPDETCUR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEMPDETCUR
*  INTO TABLE @DATA(IT_PEMPDETCUR2).
*--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_PEMPDETCUR INDEX 1 INTO DATA(WA_PEMPDETCUR2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEMPDETCUR-BUSINESSPARTNERROLE, sy-vline,
  WA_PEMPDETCUR-EMPLOYMENTSTATUS, sy-vline,
  WA_PEMPDETCUR-JOB, sy-vline,
  WA_PEMPDETCUR-JOBNAME, sy-vline,
  WA_PEMPDETCUR-SERVICECOSTLEVELNAME, sy-vline,
  WA_PEMPDETCUR-SERVICECOSTLEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEMPDETCUR 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_PEMPDETCUR 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_PEMPDETCUR INTO WA_PEMPDETCUR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PEMPDETCUR_STR, 
MANDT TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
STARTDATE TYPE STRING,
PERSONNELNUMBER TYPE STRING,
ISMAINEMPLOYMENT TYPE STRING,
BUSINESSPARTNERROLE TYPE STRING,
EMPLOYMENTSTATUS TYPE STRING,
JOB TYPE STRING,
JOBNAME TYPE STRING,
SERVICECOSTLEVELNAME TYPE STRING,
SERVICECOSTLEVEL TYPE STRING,
COSTLEVEL_FC TYPE STRING,
PERSONWORKAGRMTAUTHZNGRPG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEMPDETCUR_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_PEMPDETCUR_STR-MANDT sy-vline 
WA_PEMPDETCUR_STR-EMPLOYMENTINTERNALID sy-vline 
WA_PEMPDETCUR_STR-STARTDATE sy-vline 
WA_PEMPDETCUR_STR-PERSONNELNUMBER sy-vline 
WA_PEMPDETCUR_STR-ISMAINEMPLOYMENT sy-vline 
WA_PEMPDETCUR_STR-BUSINESSPARTNERROLE sy-vline 
WA_PEMPDETCUR_STR-EMPLOYMENTSTATUS sy-vline 
WA_PEMPDETCUR_STR-JOB sy-vline 
WA_PEMPDETCUR_STR-JOBNAME sy-vline 
WA_PEMPDETCUR_STR-SERVICECOSTLEVELNAME sy-vline 
WA_PEMPDETCUR_STR-SERVICECOSTLEVEL sy-vline 
WA_PEMPDETCUR_STR-COSTLEVEL_FC sy-vline 
WA_PEMPDETCUR_STR-PERSONWORKAGRMTAUTHZNGRPG sy-vline      INTO ld_text SEPARATED BY SPACE.

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