ABAP Select data from SAP table TRHTTPCLIENTREC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRHTTPCLIENTREC
*  INTO TABLE @DATA(IT_TRHTTPCLIENTREC2).
*--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_TRHTTPCLIENTREC INDEX 1 INTO DATA(WA_TRHTTPCLIENTREC2).


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

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

ENDLOOP.

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

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


*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_TRHTTPCLIENTREC_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,
COMMUNICATION_STEP TYPE STRING,
CONNECTION_ID TYPE STRING,
CALL_NUMBER TYPE STRING,
DESTINATION_NAME TYPE STRING,
PARTNER_USER_NAME TYPE STRING,
PARTNER_CLIENT_NUMBER TYPE STRING,
PARTNER_INSTANCE_NAME TYPE STRING,
TIMESTAMP TYPE STRING,
PROGRAM_NAME TYPE STRING,
PROGRAM_LINE TYPE STRING,
PROTOCOL TYPE STRING,
HOST TYPE STRING,
PORT TYPE STRING,
METHOD TYPE STRING,
PATH TYPE STRING,
STATUS_CODE TYPE STRING,
STATUS_PHRASE TYPE STRING,
CALL_TIME TYPE STRING,
PARTNER_EXECUTION_TIME TYPE STRING,
IDLE_TIME TYPE STRING,
DATA_SEND TYPE STRING,
DATA_SEND_TIME TYPE STRING,
DATA_RECEIVE TYPE STRING,
DATA_RECEIVE_TIME TYPE STRING,
EYEOFF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRHTTPCLIENTREC_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_TRHTTPCLIENTREC_STR-HEADER sy-vline 
WA_TRHTTPCLIENTREC_STR-EYE_ANF sy-vline 
WA_TRHTTPCLIENTREC_STR-RECTYPE sy-vline 
WA_TRHTTPCLIENTREC_STR-TIMESTAMP1 sy-vline 
WA_TRHTTPCLIENTREC_STR-TIMESTAMP2 sy-vline 
WA_TRHTTPCLIENTREC_STR-RECLEN sy-vline 
WA_TRHTTPCLIENTREC_STR-DUMMY sy-vline 
WA_TRHTTPCLIENTREC_STR-ALIGNMENT sy-vline 
WA_TRHTTPCLIENTREC_STR-BODY sy-vline 
WA_TRHTTPCLIENTREC_STR-EYEON sy-vline 
WA_TRHTTPCLIENTREC_STR-RECLEN sy-vline 
WA_TRHTTPCLIENTREC_STR-RECTYPE sy-vline 
WA_TRHTTPCLIENTREC_STR-NEXTREC sy-vline 
WA_TRHTTPCLIENTREC_STR-PREVREC sy-vline 
WA_TRHTTPCLIENTREC_STR-VERSION sy-vline 
WA_TRHTTPCLIENTREC_STR-COMMUNICATION_STEP sy-vline 
WA_TRHTTPCLIENTREC_STR-CONNECTION_ID sy-vline 
WA_TRHTTPCLIENTREC_STR-CALL_NUMBER sy-vline 
WA_TRHTTPCLIENTREC_STR-DESTINATION_NAME sy-vline 
WA_TRHTTPCLIENTREC_STR-PARTNER_USER_NAME sy-vline 
WA_TRHTTPCLIENTREC_STR-PARTNER_CLIENT_NUMBER sy-vline 
WA_TRHTTPCLIENTREC_STR-PARTNER_INSTANCE_NAME sy-vline 
WA_TRHTTPCLIENTREC_STR-TIMESTAMP sy-vline 
WA_TRHTTPCLIENTREC_STR-PROGRAM_NAME sy-vline 
WA_TRHTTPCLIENTREC_STR-PROGRAM_LINE sy-vline 
WA_TRHTTPCLIENTREC_STR-PROTOCOL sy-vline 
WA_TRHTTPCLIENTREC_STR-HOST sy-vline 
WA_TRHTTPCLIENTREC_STR-PORT sy-vline 
WA_TRHTTPCLIENTREC_STR-METHOD sy-vline 
WA_TRHTTPCLIENTREC_STR-PATH sy-vline 
WA_TRHTTPCLIENTREC_STR-STATUS_CODE sy-vline 
WA_TRHTTPCLIENTREC_STR-STATUS_PHRASE sy-vline 
WA_TRHTTPCLIENTREC_STR-CALL_TIME sy-vline 
WA_TRHTTPCLIENTREC_STR-PARTNER_EXECUTION_TIME sy-vline 
WA_TRHTTPCLIENTREC_STR-IDLE_TIME sy-vline 
WA_TRHTTPCLIENTREC_STR-DATA_SEND sy-vline 
WA_TRHTTPCLIENTREC_STR-DATA_SEND_TIME sy-vline 
WA_TRHTTPCLIENTREC_STR-DATA_RECEIVE sy-vline 
WA_TRHTTPCLIENTREC_STR-DATA_RECEIVE_TIME sy-vline 
WA_TRHTTPCLIENTREC_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.