Tuesday, August 12, 2008

What is in the Oracle Alert log file?

The Oracle alert log is a special trace file. The alert log of a database is a chronological log of messages and errors, and includes the following items:

  • All internal errors (ORA-600), block corruption errors (ORA-1578), and deadlock errors (ORA-60) that occur
  • Administrative operations, such as CREATE, ALTER, and DROP statements and STARTUP, SHUTDOWN, and ARCHIVELOG statements
  • Messages and errors relating to the functions of shared server and dispatcher processes
  • Errors occurring during the automatic refresh of a materialized view
  • The values of all initialization parameters that had nondefault values at the time the database and instance start

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