About error logs...urgent..

Question

hello experts,
how will i use error log in my program?
thank you.:-)

Answer 1

Hi,
if there is no data in the table,if we write select statement then error message should be created in 'error log' when it run on background.
You need to create a Custom table , where you can store the Error Log.say report name and error text , Date of run , user name etc.
Best is create a Include , which you can use in all reports for future.
Later you can use the table to retrive log.
Or you can do in the following way:::::::::::::::::
You can use the function module  'APPL_LOG_WRITE_MESSAGES' to log application messages and display using FM 'APPL_LOG_DISPLAY'.
  CALL FUNCTION 'APPL_LOG_WRITE_MESSAGES'
    EXPORTING
      OBJECT                    = ls_balhdri-object
    SUBOBJECT                 = ' '
      LOG_HANDLE                = gd_handle
    UPDATE_OR_INSERT          = 'U'
    TABLES
      MESSAGES                  = lt_balmi
  EXCEPTIONS
    OBJECT_NOT_FOUND          = 1
    SUBOBJECT_NOT_FOUND       = 2
    OTHERS                    = 3
  IF SY-SUBRC <> 0.
  MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
          WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
Or You can use the function module 'APPL_LOG_WRITE_MESSAGES' to log application messages and display using FM 'APPL_LOG_DISPLAY'.
  CALL FUNCTION 'APPL_LOG_WRITE_MESSAGES'
    EXPORTING
      OBJECT                    = ls_balhdri-object
    SUBOBJECT                 = ' '
      LOG_HANDLE                = gd_handle
    UPDATE_OR_INSERT          = 'U'
    TABLES
      MESSAGES                  = lt_balmi
  EXCEPTIONS
    OBJECT_NOT_FOUND          = 1
    SUBOBJECT_NOT_FOUND       = 2
    OTHERS                    = 3
  IF SY-SUBRC <> 0.
  MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
          WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
Regarding help for why you require and why to go for application logs, refer this SAP Help
http://help.sap.com/saphelp_47x200/helpdata/en/2a/fa0223493111d182b70000e829fbfe/frameset.htm
Or you can try in the following way.depending upon your reqt you use any one.
DATA: ls_log  TYPE bal_s_log.
DATA: p_log_handle TYPE balloghndl.
ls_log-extnumber = 'YMYTEST'.
ls_log-alprog = sy-repid.
CALL FUNCTION 'BAL_LOG_CREATE'
  EXPORTING
    I_S_LOG                 = ls_log
  IMPORTING
    E_LOG_HANDLE            = p_log_handle
  EXCEPTIONS
    LOG_HEADER_INCONSISTENT = 1
    OTHERS                  = 2.
IF SY-SUBRC <> 0.
      MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
              WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
data: l_s_msg TYPE bal_s_msg.
data: E_MSG_WAS_DISPLAYED type boolean.
data: E_MSG_WAS_LOGGED type boolean.
data: E_S_MSG_HANDLE type BALMSGHNDL.
l_s_msg-msgid = '00'.
l_s_msg-msgty = 'E'.
l_s_msg-msgno = '001'.
l_s_msg-msgv1 = 'This is a test message from 20130810'.
CALL FUNCTION 'BAL_LOG_MSG_ADD'
  EXPORTING
    I_LOG_HANDLE              = p_log_handle
    I_S_MSG                   = l_s_msg
IMPORTING
   E_S_MSG_HANDLE            = E_S_MSG_HANDLE
   E_MSG_WAS_LOGGED          = E_MSG_WAS_LOGGED
   E_MSG_WAS_DISPLAYED       = E_MSG_WAS_DISPLAYED
EXCEPTIONS
   LOG_NOT_FOUND             = 1
   MSG_INCONSISTENT          = 2
   LOG_IS_FULL               = 3
   OTHERS                    = 4
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
data: I_T_LOG_HANDLE type BAL_T_LOGH.
append p_log_handle to i_t_log_handle.
CALL FUNCTION 'BAL_DSP_LOG_DISPLAY'
EXPORTING
  I_S_DISPLAY_PROFILE          =
    I_T_LOG_HANDLE               = i_t_log_handle
  I_T_MSG_HANDLE               =
  I_S_LOG_FILTER               =
  I_S_MSG_FILTER               =
  I_T_LOG_CONTEXT_FILTER       =
  I_T_MSG_CONTEXT_FILTER       =
  I_AMODAL                     = ' '
IMPORTING
  E_S_EXIT_COMMAND             =
EXCEPTIONS
   PROFILE_INCONSISTENT         = 1
   INTERNAL_ERROR               = 2
   NO_DATA_AVAILABLE            = 3
   NO_AUTHORITY                 = 4
   OTHERS                       = 5
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Please reward if its useful.
Regards,
Sivaparvathi