ABAP Select data from SAP table /MRSS/T_RM_CANDIDATE_OFFLINE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MRSS/T_RM_CANDIDATE_OFFLINE
*  INTO TABLE @DATA(IT_/MRSS/T_RM_CANDIDATE_OFFLINE2).
*--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_/MRSS/T_RM_CANDIDATE_OFFLINE INDEX 1 INTO DATA(WA_/MRSS/T_RM_CANDIDATE_OFFLINE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MRSS/T_RM_CANDIDATE_OFFLINE>-GUID = 1.
</MRSS/T_RM_CANDIDATE_OFFLINE>-REQUEST_NUMBER = 1.
</MRSS/T_RM_CANDIDATE_OFFLINE>-ROLE_NUMBER = 1.
</MRSS/T_RM_CANDIDATE_OFFLINE>-DEMAND_GUID = 1.
</MRSS/T_RM_CANDIDATE_OFFLINE>-ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MRSS/T_RM_CANDIDATE_OFFLINE-NAME, sy-vline,
  WA_/MRSS/T_RM_CANDIDATE_OFFLINE-USERID, sy-vline,
  WA_/MRSS/T_RM_CANDIDATE_OFFLINE-CANDIDATE_TYPE, sy-vline,
  WA_/MRSS/T_RM_CANDIDATE_OFFLINE-PROFIT_CENTER, sy-vline,
  WA_/MRSS/T_RM_CANDIDATE_OFFLINE-VISIBLE, sy-vline,
  WA_/MRSS/T_RM_CANDIDATE_OFFLINE-STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MRSS/T_RM_CANDIDATE_OFFLINE 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_/MRSS/T_RM_CANDIDATE_OFFLINE 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_/MRSS/T_RM_CANDIDATE_OFFLINE INTO WA_/MRSS/T_RM_CANDIDATE_OFFLINE.


*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 REQUEST_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MRSS/T_RM_CANDIDATE_OFFLINE-REQUEST_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MRSS/T_RM_CANDIDATE_OFFLINE-REQUEST_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field ROLE_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_/MRSS/T_RM_CANDIDATE_OFFLINE-ROLE_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MRSS/T_RM_CANDIDATE_OFFLINE-ROLE_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VENDOR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MRSS/T_RM_CANDIDATE_OFFLINE-VENDOR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MRSS/T_RM_CANDIDATE_OFFLINE-VENDOR_ID.
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_/MRSS/T_RM_CANDIDATE_OFFLINE_STR, 
GUID TYPE STRING,
REQUEST_NUMBER TYPE STRING,
ROLE_NUMBER TYPE STRING,
DEMAND_GUID TYPE STRING,
ID TYPE STRING,
NAME TYPE STRING,
USERID TYPE STRING,
CANDIDATE_TYPE TYPE STRING,
PROFIT_CENTER TYPE STRING,
VISIBLE TYPE STRING,
STATUS TYPE STRING,
REJ_CODE TYPE STRING,
COMMENTS TYPE STRING,
CREATEDON TYPE STRING,
CREATED_BY TYPE STRING,
CHANGEDON TYPE STRING,
CHANGEDBY TYPE STRING,
VERSION_NO TYPE STRING,
STATUS_DESC TYPE STRING,
REJ_CODE_DESC TYPE STRING,
RESUME TYPE STRING,
RESUME_URL TYPE STRING,
CONS_MANAGER TYPE STRING,
HOME_CITY TYPE STRING,
HOME_REGION TYPE STRING,
HOME_POSTAL_CODE TYPE STRING,
OFFICE_LOCATION TYPE STRING,
COUNTRY TYPE STRING,
KRATE TYPE STRING,
COST_RATE TYPE STRING,
COST_RATE_CURR TYPE STRING,
JOB_TEXT TYPE STRING,
ORIGIN TYPE STRING,
PROFILE_GUID TYPE STRING,
VENDOR_CONS_NAME TYPE STRING,
VENDOR_NAME TYPE STRING,
VENDOR_ID TYPE STRING,
VENDOR_COST_RATE TYPE STRING,
EXT_CANDIDATE TYPE STRING,
EXT_PARTNER_ID TYPE STRING,
CREATED_DATE TYPE STRING,
CHANGED_DATE TYPE STRING,
CREATED_BY_NAME TYPE STRING,
CHANGED_BY_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MRSS/T_RM_CANDIDATE_OFFLINE_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_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-GUID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-REQUEST_NUMBER sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-ROLE_NUMBER sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-DEMAND_GUID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-ID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-NAME sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-USERID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CANDIDATE_TYPE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-PROFIT_CENTER sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-VISIBLE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-STATUS sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-REJ_CODE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-COMMENTS sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CREATEDON sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CREATED_BY sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CHANGEDON sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CHANGEDBY sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-VERSION_NO sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-STATUS_DESC sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-REJ_CODE_DESC sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-RESUME sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-RESUME_URL sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CONS_MANAGER sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-HOME_CITY sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-HOME_REGION sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-HOME_POSTAL_CODE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-OFFICE_LOCATION sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-COUNTRY sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-KRATE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-COST_RATE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-COST_RATE_CURR sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-JOB_TEXT sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-ORIGIN sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-PROFILE_GUID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-VENDOR_CONS_NAME sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-VENDOR_NAME sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-VENDOR_ID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-VENDOR_COST_RATE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-EXT_CANDIDATE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-EXT_PARTNER_ID sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CREATED_DATE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CHANGED_DATE sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CREATED_BY_NAME sy-vline 
WA_/MRSS/T_RM_CANDIDATE_OFFLINE_STR-CHANGED_BY_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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