ABAP Select data from SAP table E2E_ATRA_FILE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2E_ATRA_FILE 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 E2E_ATRA_FILE. 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 E2E_ATRA_FILE 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_E2E_ATRA_FILE TYPE STANDARD TABLE OF E2E_ATRA_FILE,
      WA_E2E_ATRA_FILE TYPE E2E_ATRA_FILE,
      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: <E2E_ATRA_FILE> TYPE E2E_ATRA_FILE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2E_ATRA_FILE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2E_ATRA_FILE
  INTO TABLE IT_E2E_ATRA_FILE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2E_ATRA_FILE
*  INTO TABLE @DATA(IT_E2E_ATRA_FILE2).
*--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_E2E_ATRA_FILE INDEX 1 INTO DATA(WA_E2E_ATRA_FILE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2E_ATRA_FILE ASSIGNING <E2E_ATRA_FILE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2E_ATRA_FILE>-TRACE_USER = 1.
<E2E_ATRA_FILE>-OBJ_TYPE = 1.
<E2E_ATRA_FILE>-OBJ_NAME = 1.
<E2E_ATRA_FILE>-FDATE = 1.
<E2E_ATRA_FILE>-FTIME = 1.

ENDLOOP.

LOOP AT IT_E2E_ATRA_FILE INTO WA_E2E_ATRA_FILE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2E_ATRA_FILE-FSIZE, sy-vline,
  WA_E2E_ATRA_FILE-COMM, sy-vline,
  WA_E2E_ATRA_FILE-FNAME, sy-vline,
  WA_E2E_ATRA_FILE-AGG, sy-vline,
  WA_E2E_ATRA_FILE-REMOTE, sy-vline,
  WA_E2E_ATRA_FILE-STATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2E_ATRA_FILE 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_E2E_ATRA_FILE 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_E2E_ATRA_FILE INTO WA_E2E_ATRA_FILE.


*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_E2E_ATRA_FILE_STR, 
TRACE_USER TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_NAME TYPE STRING,
FDATE TYPE STRING,
FTIME TYPE STRING,
FSIZE TYPE STRING,
COMM TYPE STRING,
FNAME TYPE STRING,
AGG TYPE STRING,
REMOTE TYPE STRING,
STATE TYPE STRING,
ERRTEXT TYPE STRING,
APPL_USER TYPE STRING,
CATCHER TYPE STRING,
VERS TYPE STRING,
REL TYPE STRING,
OPSYS TYPE STRING,
CPU_COUNT TYPE STRING,
HOST TYPE STRING,
TRANSID TYPE STRING,
SERVER_NAME TYPE STRING,
CONN_ID TYPE STRING,
CONTEXT TYPE STRING,
U_CLIENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2E_ATRA_FILE_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_E2E_ATRA_FILE_STR-TRACE_USER sy-vline 
WA_E2E_ATRA_FILE_STR-OBJ_TYPE sy-vline 
WA_E2E_ATRA_FILE_STR-OBJ_NAME sy-vline 
WA_E2E_ATRA_FILE_STR-FDATE sy-vline 
WA_E2E_ATRA_FILE_STR-FTIME sy-vline 
WA_E2E_ATRA_FILE_STR-FSIZE sy-vline 
WA_E2E_ATRA_FILE_STR-COMM sy-vline 
WA_E2E_ATRA_FILE_STR-FNAME sy-vline 
WA_E2E_ATRA_FILE_STR-AGG sy-vline 
WA_E2E_ATRA_FILE_STR-REMOTE sy-vline 
WA_E2E_ATRA_FILE_STR-STATE sy-vline 
WA_E2E_ATRA_FILE_STR-ERRTEXT sy-vline 
WA_E2E_ATRA_FILE_STR-APPL_USER sy-vline 
WA_E2E_ATRA_FILE_STR-CATCHER sy-vline 
WA_E2E_ATRA_FILE_STR-VERS sy-vline 
WA_E2E_ATRA_FILE_STR-REL sy-vline 
WA_E2E_ATRA_FILE_STR-OPSYS sy-vline 
WA_E2E_ATRA_FILE_STR-CPU_COUNT sy-vline 
WA_E2E_ATRA_FILE_STR-HOST sy-vline 
WA_E2E_ATRA_FILE_STR-TRANSID sy-vline 
WA_E2E_ATRA_FILE_STR-SERVER_NAME sy-vline 
WA_E2E_ATRA_FILE_STR-CONN_ID sy-vline 
WA_E2E_ATRA_FILE_STR-CONTEXT sy-vline 
WA_E2E_ATRA_FILE_STR-U_CLIENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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