A database stores your business
information in various data structures. The main function of a
database is to retrieve data from its components and update them via
executing queries. If there are interruptions in any of these
operations, the database becomes vulnerable to corruption. One of the
most intermittent errors faced by an Oracle DBA is ORA-600. This is
an internal error thrown by the kernel of Oracle's RDBMS.
Surprisingly, the ORA-600 error is
difficult to identify, as it may not show up explicitly on the
screen. This means you may not know when the error has struck and
caused damaged to your database. To detect an ORA-600 error, you need
to check your trace files. You may also find an entry related to this
error in the alert logs. The error ORA-600 always contains a few
arguments enclosed in square brackets. These arguments may signify
different things for different versions of the database. So, to find
out the underlying reason for failure becomes a major challenge for
the database administrator. Also, your log and trace files keep
increasing in size due to repetitive multiple instances of the error.
A range of factors may be responsible
for the occurrence of ORA-600. The error may be triggered by
unexpected events of time-outs and file corruption. Otherwise, you
may see this error due to data inconsistency in the memory, in
input/output messages, or in your hardware. If you face a database
failure or crash and do not restore the log files correctly, you may
receive this error.
ORA-600 is often the most critical
situation of database corruption and thus, should not be attempted on
your own. Instead, you need to contact the Oracle support immediately
and provide them with all the trace and log files corresponding to
the database. Although finding the cause of this problem is a tedious
job, some patches come as a workaround to resolve ORA-600 error. If
the Oracle support fails to resolve the problem, you will lose all
data within the database. You can perform database monitoring to be
able to place a service request as soon as the error appears in the
log.
There are abundant user-friendly, yet
advanced Oracle recovery software on the market that may help you fix
ORA-600. These competent utilities repair corruption in your database
to recover every piece of lost or inaccessible information, such as
tables, tablespaces, views, triggers, schemas, indexes, and more.
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