ABAP Select data from SAP table TRRFCCLIENTDESTREC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRRFCCLIENTDESTREC
*  INTO TABLE @DATA(IT_TRRFCCLIENTDESTREC2).
*--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_TRRFCCLIENTDESTREC INDEX 1 INTO DATA(WA_TRRFCCLIENTDESTREC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRRFCCLIENTDESTREC>-HEADER = 1.
<TRRFCCLIENTDESTREC>-EYE_ANF = 1.
<TRRFCCLIENTDESTREC>-RECTYPE = 1.
<TRRFCCLIENTDESTREC>-TIMESTAMP1 = 1.
<TRRFCCLIENTDESTREC>-TIMESTAMP2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRRFCCLIENTDESTREC-RECLEN, sy-vline,
  WA_TRRFCCLIENTDESTREC-DUMMY, sy-vline,
  WA_TRRFCCLIENTDESTREC-ALIGNMENT, sy-vline,
  WA_TRRFCCLIENTDESTREC-BODY, sy-vline,
  WA_TRRFCCLIENTDESTREC-EYEON, sy-vline,
  WA_TRRFCCLIENTDESTREC-RECLEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRRFCCLIENTDESTREC 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_TRRFCCLIENTDESTREC 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_TRRFCCLIENTDESTREC INTO WA_TRRFCCLIENTDESTREC.


*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_TRRFCCLIENTDESTREC_STR, 
HEADER TYPE STRING,
EYE_ANF TYPE STRING,
RECTYPE TYPE STRING,
TIMESTAMP1 TYPE STRING,
TIMESTAMP2 TYPE STRING,
RECLEN TYPE STRING,
DUMMY TYPE STRING,
ALIGNMENT TYPE STRING,
BODY TYPE STRING,
EYEON TYPE STRING,
RECLEN TYPE STRING,
RECTYPE TYPE STRING,
NEXTREC TYPE STRING,
PREVREC TYPE STRING,
VERSION TYPE STRING,
CONNECTION_ID TYPE STRING,
CALL_NUMBER_DIA TYPE STRING,
CALL_NUMBER_CON TYPE STRING,
RFC_TYPE TYPE STRING,
ENGINE_TYPE TYPE STRING,
PARTNER_ENGINE_TYPE TYPE STRING,
TRANSACTION_CODE TYPE STRING,
PROGRAM_NAME TYPE STRING,
DESTINATION_NAME TYPE STRING,
RFC_USER_NAME TYPE STRING,
RFC_CLIENT_NUMBER TYPE STRING,
IP_ADDRESS TYPE STRING,
PARTNER_IP_ADDRESS TYPE STRING,
INSTANCE_NAME TYPE STRING,
PARTNER_INSTANCE_NAME TYPE STRING,
PARTNER_RELEASE TYPE STRING,
CALL_TIME_DIA TYPE STRING,
CALL_TIME_CON TYPE STRING,
PARTNER_EXECUTION_TIME_DIA TYPE STRING,
PARTNER_EXECUTION_TIME_CON TYPE STRING,
IDLE_TIME_DIA TYPE STRING,
IDLE_TIME_CON TYPE STRING,
DATA_SEND_DIA TYPE STRING,
DATA_SEND_TIME_DIA TYPE STRING,
DATA_SEND_CON TYPE STRING,
DATA_SEND_TIME_CON TYPE STRING,
APPL_DATA_SEND_DIA TYPE STRING,
APPL_DATA_SEND_CON TYPE STRING,
DATA_RECEIVE_DIA TYPE STRING,
DATA_RECEIVE_TIME_DIA TYPE STRING,
DATA_RECEIVE_CON TYPE STRING,
DATA_RECEIVE_TIME_CON TYPE STRING,
APPL_DATA_RECEIVE_DIA TYPE STRING,
APPL_DATA_RECEIVE_CON TYPE STRING,
INBOUND_TID TYPE STRING,
INBOUND_QUEUE_NAME TYPE STRING,
OUTBOUND_TID TYPE STRING,
OUTBOUND_QUEUE_NAME TYPE STRING,
EYEOFF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRRFCCLIENTDESTREC_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_TRRFCCLIENTDESTREC_STR-HEADER sy-vline 
WA_TRRFCCLIENTDESTREC_STR-EYE_ANF sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RECTYPE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-TIMESTAMP1 sy-vline 
WA_TRRFCCLIENTDESTREC_STR-TIMESTAMP2 sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RECLEN sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DUMMY sy-vline 
WA_TRRFCCLIENTDESTREC_STR-ALIGNMENT sy-vline 
WA_TRRFCCLIENTDESTREC_STR-BODY sy-vline 
WA_TRRFCCLIENTDESTREC_STR-EYEON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RECLEN sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RECTYPE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-NEXTREC sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PREVREC sy-vline 
WA_TRRFCCLIENTDESTREC_STR-VERSION sy-vline 
WA_TRRFCCLIENTDESTREC_STR-CONNECTION_ID sy-vline 
WA_TRRFCCLIENTDESTREC_STR-CALL_NUMBER_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-CALL_NUMBER_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RFC_TYPE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-ENGINE_TYPE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PARTNER_ENGINE_TYPE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-TRANSACTION_CODE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PROGRAM_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DESTINATION_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RFC_USER_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-RFC_CLIENT_NUMBER sy-vline 
WA_TRRFCCLIENTDESTREC_STR-IP_ADDRESS sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PARTNER_IP_ADDRESS sy-vline 
WA_TRRFCCLIENTDESTREC_STR-INSTANCE_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PARTNER_INSTANCE_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PARTNER_RELEASE sy-vline 
WA_TRRFCCLIENTDESTREC_STR-CALL_TIME_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-CALL_TIME_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PARTNER_EXECUTION_TIME_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-PARTNER_EXECUTION_TIME_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-IDLE_TIME_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-IDLE_TIME_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_SEND_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_SEND_TIME_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_SEND_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_SEND_TIME_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-APPL_DATA_SEND_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-APPL_DATA_SEND_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_RECEIVE_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_RECEIVE_TIME_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_RECEIVE_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-DATA_RECEIVE_TIME_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-APPL_DATA_RECEIVE_DIA sy-vline 
WA_TRRFCCLIENTDESTREC_STR-APPL_DATA_RECEIVE_CON sy-vline 
WA_TRRFCCLIENTDESTREC_STR-INBOUND_TID sy-vline 
WA_TRRFCCLIENTDESTREC_STR-INBOUND_QUEUE_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-OUTBOUND_TID sy-vline 
WA_TRRFCCLIENTDESTREC_STR-OUTBOUND_QUEUE_NAME sy-vline 
WA_TRRFCCLIENTDESTREC_STR-EYEOFF sy-vline      INTO ld_text SEPARATED BY SPACE.

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