ABAP Select data from SAP table TTEPDT_OTRACE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTEPDT_OTRACE
*  INTO TABLE @DATA(IT_TTEPDT_OTRACE2).
*--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_TTEPDT_OTRACE INDEX 1 INTO DATA(WA_TTEPDT_OTRACE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTEPDT_OTRACE>-CLIENT = 1.
<TTEPDT_OTRACE>-TTEDOCUMENTID = 1.
<TTEPDT_OTRACE>-TRACEENTRYKEY = 1.
<TTEPDT_OTRACE>-ERRCODE = 1.
<TTEPDT_OTRACE>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTEPDT_OTRACE-STATUSMESSAGE, sy-vline,
  WA_TTEPDT_OTRACE-LOCATION, sy-vline,
  WA_TTEPDT_OTRACE-TECHMESSAGE1, sy-vline,
  WA_TTEPDT_OTRACE-TECHMESSAGE2, sy-vline,
  WA_TTEPDT_OTRACE-TECHMESSAGE3, sy-vline,
  WA_TTEPDT_OTRACE-TECHMESSAGE4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTEPDT_OTRACE 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_TTEPDT_OTRACE 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_TTEPDT_OTRACE INTO WA_TTEPDT_OTRACE.


*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_TTEPDT_OTRACE_STR, 
CLIENT TYPE STRING,
TTEDOCUMENTID TYPE STRING,
TRACEENTRYKEY TYPE STRING,
ERRCODE TYPE STRING,
STATUS TYPE STRING,
STATUSMESSAGE TYPE STRING,
LOCATION TYPE STRING,
TECHMESSAGE1 TYPE STRING,
TECHMESSAGE2 TYPE STRING,
TECHMESSAGE3 TYPE STRING,
TECHMESSAGE4 TYPE STRING,
TECHMESSAGE5 TYPE STRING,
MESSAGECLASS TYPE STRING,
PLACEHOLDER1 TYPE STRING,
PLACEHOLDER2 TYPE STRING,
PLACEHOLDER3 TYPE STRING,
PLACEHOLDER4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTEPDT_OTRACE_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_TTEPDT_OTRACE_STR-CLIENT sy-vline 
WA_TTEPDT_OTRACE_STR-TTEDOCUMENTID sy-vline 
WA_TTEPDT_OTRACE_STR-TRACEENTRYKEY sy-vline 
WA_TTEPDT_OTRACE_STR-ERRCODE sy-vline 
WA_TTEPDT_OTRACE_STR-STATUS sy-vline 
WA_TTEPDT_OTRACE_STR-STATUSMESSAGE sy-vline 
WA_TTEPDT_OTRACE_STR-LOCATION sy-vline 
WA_TTEPDT_OTRACE_STR-TECHMESSAGE1 sy-vline 
WA_TTEPDT_OTRACE_STR-TECHMESSAGE2 sy-vline 
WA_TTEPDT_OTRACE_STR-TECHMESSAGE3 sy-vline 
WA_TTEPDT_OTRACE_STR-TECHMESSAGE4 sy-vline 
WA_TTEPDT_OTRACE_STR-TECHMESSAGE5 sy-vline 
WA_TTEPDT_OTRACE_STR-MESSAGECLASS sy-vline 
WA_TTEPDT_OTRACE_STR-PLACEHOLDER1 sy-vline 
WA_TTEPDT_OTRACE_STR-PLACEHOLDER2 sy-vline 
WA_TTEPDT_OTRACE_STR-PLACEHOLDER3 sy-vline 
WA_TTEPDT_OTRACE_STR-PLACEHOLDER4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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