ABAP Select data from SAP table ATRA_STR_TRACE_REQUEST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATRA_STR_TRACE_REQUEST
*  INTO TABLE @DATA(IT_ATRA_STR_TRACE_REQUEST2).
*--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_ATRA_STR_TRACE_REQUEST INDEX 1 INTO DATA(WA_ATRA_STR_TRACE_REQUEST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATRA_STR_TRACE_REQUEST>-REQID = 1.
<ATRA_STR_TRACE_REQUEST>-STATE = 1.
<ATRA_STR_TRACE_REQUEST>-SUSER = 1.
<ATRA_STR_TRACE_REQUEST>-CLIENT = 1.
<ATRA_STR_TRACE_REQUEST>-EMODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATRA_STR_TRACE_REQUEST-PTYPE, sy-vline,
  WA_ATRA_STR_TRACE_REQUEST-OTYPE, sy-vline,
  WA_ATRA_STR_TRACE_REQUEST-ONAME, sy-vline,
  WA_ATRA_STR_TRACE_REQUEST-IRUNS, sy-vline,
  WA_ATRA_STR_TRACE_REQUEST-JRUNS, sy-vline,
  WA_ATRA_STR_TRACE_REQUEST-FRUNS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATRA_STR_TRACE_REQUEST 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_ATRA_STR_TRACE_REQUEST 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_ATRA_STR_TRACE_REQUEST INTO WA_ATRA_STR_TRACE_REQUEST.


*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_ATRA_STR_TRACE_REQUEST_STR, 
REQID TYPE STRING,
STATE TYPE STRING,
SUSER TYPE STRING,
CLIENT TYPE STRING,
EMODE TYPE STRING,
PTYPE TYPE STRING,
OTYPE TYPE STRING,
ONAME TYPE STRING,
IRUNS TYPE STRING,
JRUNS TYPE STRING,
FRUNS TYPE STRING,
EDATE TYPE STRING,
ETIME TYPE STRING,
ADMIN_CLIENT TYPE STRING,
ADMIN_USER TYPE STRING,
ADMIN_DATE TYPE STRING,
ADMIN_TIME TYPE STRING,
DESCRIPTION TYPE STRING,
AGGREGATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATRA_STR_TRACE_REQUEST_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_ATRA_STR_TRACE_REQUEST_STR-REQID sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-STATE sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-SUSER sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-CLIENT sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-EMODE sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-PTYPE sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-OTYPE sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-ONAME sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-IRUNS sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-JRUNS sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-FRUNS sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-EDATE sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-ETIME sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-ADMIN_CLIENT sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-ADMIN_USER sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-ADMIN_DATE sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-ADMIN_TIME sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-DESCRIPTION sy-vline 
WA_ATRA_STR_TRACE_REQUEST_STR-AGGREGATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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