ABAP Select data from SAP table ECTRACE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ECTRACE
*  INTO TABLE @DATA(IT_ECTRACE2).
*--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_ECTRACE INDEX 1 INTO DATA(WA_ECTRACE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ECTRACE>-REC_TYPE = 1.
<ECTRACE>-REC_ID = 1.
<ECTRACE>-ABAP_SESSION_ID = 1.
<ECTRACE>-REC_CONTINUE_CNT = 1.
<ECTRACE>-REC_SYSTEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ECTRACE-REC_SYSTEM_TCS, sy-vline,
  WA_ECTRACE-REC_SYSTEM_TYPE, sy-vline,
  WA_ECTRACE-REC_USER, sy-vline,
  WA_ECTRACE-REC_TO_DATE, sy-vline,
  WA_ECTRACE-REC_TO_TIME, sy-vline,
  WA_ECTRACE-STATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ECTRACE 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_ECTRACE 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_ECTRACE INTO WA_ECTRACE.


*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_ECTRACE_STR, 
REC_TYPE TYPE STRING,
REC_ID TYPE STRING,
ABAP_SESSION_ID TYPE STRING,
REC_CONTINUE_CNT TYPE STRING,
REC_SYSTEM TYPE STRING,
REC_SYSTEM_TCS TYPE STRING,
REC_SYSTEM_TYPE TYPE STRING,
REC_USER TYPE STRING,
REC_TO_DATE TYPE STRING,
REC_TO_TIME TYPE STRING,
STATE TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
ENDDATE TYPE STRING,
ENDTIME TYPE STRING,
ECATT_OBJ_NAME TYPE STRING,
ECATT_OBJ_VER TYPE STRING,
ECATT_OVERWRITE TYPE STRING,
ECATT_PACKAGE TYPE STRING,
CHANGE_REQUEST TYPE STRING,
REC_SELECTION TYPE STRING,
TCS_URL TYPE STRING,
TCS_COMM_TYPE TYPE STRING,
SCHEDULE_DATE TYPE STRING,
SCHEDULE_TIME TYPE STRING,
SCHEDULE_USER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ECTRACE_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_ECTRACE_STR-REC_TYPE sy-vline 
WA_ECTRACE_STR-REC_ID sy-vline 
WA_ECTRACE_STR-ABAP_SESSION_ID sy-vline 
WA_ECTRACE_STR-REC_CONTINUE_CNT sy-vline 
WA_ECTRACE_STR-REC_SYSTEM sy-vline 
WA_ECTRACE_STR-REC_SYSTEM_TCS sy-vline 
WA_ECTRACE_STR-REC_SYSTEM_TYPE sy-vline 
WA_ECTRACE_STR-REC_USER sy-vline 
WA_ECTRACE_STR-REC_TO_DATE sy-vline 
WA_ECTRACE_STR-REC_TO_TIME sy-vline 
WA_ECTRACE_STR-STATE sy-vline 
WA_ECTRACE_STR-STARTDATE sy-vline 
WA_ECTRACE_STR-STARTTIME sy-vline 
WA_ECTRACE_STR-ENDDATE sy-vline 
WA_ECTRACE_STR-ENDTIME sy-vline 
WA_ECTRACE_STR-ECATT_OBJ_NAME sy-vline 
WA_ECTRACE_STR-ECATT_OBJ_VER sy-vline 
WA_ECTRACE_STR-ECATT_OVERWRITE sy-vline 
WA_ECTRACE_STR-ECATT_PACKAGE sy-vline 
WA_ECTRACE_STR-CHANGE_REQUEST sy-vline 
WA_ECTRACE_STR-REC_SELECTION sy-vline 
WA_ECTRACE_STR-TCS_URL sy-vline 
WA_ECTRACE_STR-TCS_COMM_TYPE sy-vline 
WA_ECTRACE_STR-SCHEDULE_DATE sy-vline 
WA_ECTRACE_STR-SCHEDULE_TIME sy-vline 
WA_ECTRACE_STR-SCHEDULE_USER sy-vline      INTO ld_text SEPARATED BY SPACE.

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