ABAP Select data from SAP table /GBHCM/S_ELR_EMPLOYEE_DETAIL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /GBHCM/S_ELR_EMPLOYEE_DETAIL 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 /GBHCM/S_ELR_EMPLOYEE_DETAIL. 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 /GBHCM/S_ELR_EMPLOYEE_DETAIL 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_/GBHCM/S_ELR_EMPLOYEE_DETAIL TYPE STANDARD TABLE OF /GBHCM/S_ELR_EMPLOYEE_DETAIL,
      WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL TYPE /GBHCM/S_ELR_EMPLOYEE_DETAIL,
      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: </GBHCM/S_ELR_EMPLOYEE_DETAIL> TYPE /GBHCM/S_ELR_EMPLOYEE_DETAIL.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /GBHCM/S_ELR_EMPLOYEE_DETAIL
  INTO TABLE IT_/GBHCM/S_ELR_EMPLOYEE_DETAIL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GBHCM/S_ELR_EMPLOYEE_DETAIL
*  INTO TABLE @DATA(IT_/GBHCM/S_ELR_EMPLOYEE_DETAIL2).
*--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_/GBHCM/S_ELR_EMPLOYEE_DETAIL INDEX 1 INTO DATA(WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/GBHCM/S_ELR_EMPLOYEE_DETAIL ASSIGNING </GBHCM/S_ELR_EMPLOYEE_DETAIL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GBHCM/S_ELR_EMPLOYEE_DETAIL>-PERNR = 1.
</GBHCM/S_ELR_EMPLOYEE_DETAIL>-OTYPE = 1.
</GBHCM/S_ELR_EMPLOYEE_DETAIL>-SOBID = 1.
</GBHCM/S_ELR_EMPLOYEE_DETAIL>-FIRSTNAME = 1.
</GBHCM/S_ELR_EMPLOYEE_DETAIL>-LASTNAME = 1.

ENDLOOP.

LOOP AT IT_/GBHCM/S_ELR_EMPLOYEE_DETAIL INTO WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-MIDNAME, sy-vline,
  WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-TITLE, sy-vline,
  WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-NAME, sy-vline,
  WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-CITY, sy-vline,
  WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-POSITION_TEXT, sy-vline,
  WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-JOB_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL 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_/GBHCM/S_ELR_EMPLOYEE_DETAIL 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_/GBHCM/S_ELR_EMPLOYEE_DETAIL INTO WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL.


*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 SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-EMAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL2
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-EMAIL2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL-EMAIL2.
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_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR, 
PERNR TYPE STRING,
OTYPE TYPE STRING,
SOBID TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
MIDNAME TYPE STRING,
TITLE TYPE STRING,
NAME TYPE STRING,
CITY TYPE STRING,
POSITION_TEXT TYPE STRING,
JOB_TEXT TYPE STRING,
ORGUNIT_TEXT TYPE STRING,
WORKPHONE TYPE STRING,
WORKPHONE_EXT TYPE STRING,
WORKPHONE2 TYPE STRING,
MOBILE TYPE STRING,
MOBILE2 TYPE STRING,
FAX TYPE STRING,
EMAIL TYPE STRING,
EMAIL2 TYPE STRING,
COSTCENTER TYPE STRING,
MANAGER TYPE STRING,
MANAGER_ID TYPE STRING,
ORG_STREET TYPE STRING,
ORG_HOUSENR TYPE STRING,
ORG_CITY TYPE STRING,
ORG_POSTCODE TYPE STRING,
ORG_COUNTRY TYPE STRING,
ORG_REGION TYPE STRING,
BUILDING TYPE STRING,
ROOM_NR TYPE STRING,
BUILDING_LIST TYPE STRING,
ROOM_NR_LIST TYPE STRING,
ORG_PHONE TYPE STRING,
ORG_FAX TYPE STRING,
COMPANY_CODE TYPE STRING,
COMP_STREET TYPE STRING,
COMP_HOUSENR TYPE STRING,
COMP_CITY TYPE STRING,
COMP_POSTCODE TYPE STRING,
COMP_COUNTRY TYPE STRING,
COMP_REGION TYPE STRING,
COMP_PHONE TYPE STRING,
COMP_FAX TYPE STRING,
COMPANY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_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_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-PERNR sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-OTYPE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-SOBID sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-FIRSTNAME sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-LASTNAME sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-MIDNAME sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-TITLE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-NAME sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-CITY sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-POSITION_TEXT sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-JOB_TEXT sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORGUNIT_TEXT sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-WORKPHONE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-WORKPHONE_EXT sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-WORKPHONE2 sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-MOBILE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-MOBILE2 sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-FAX sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-EMAIL sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-EMAIL2 sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COSTCENTER sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-MANAGER sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-MANAGER_ID sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_STREET sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_HOUSENR sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_CITY sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_POSTCODE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_COUNTRY sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_REGION sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-BUILDING sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ROOM_NR sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-BUILDING_LIST sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ROOM_NR_LIST sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_PHONE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-ORG_FAX sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMPANY_CODE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_STREET sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_HOUSENR sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_CITY sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_POSTCODE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_COUNTRY sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_REGION sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_PHONE sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMP_FAX sy-vline 
WA_/GBHCM/S_ELR_EMPLOYEE_DETAIL_STR-COMPANY sy-vline      INTO ld_text SEPARATED BY SPACE.

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