Identify two situations in which the alert log file is updated.

Identify two situations in which the alert log file is updated.

Identify two situations in which the alert log file is updated.

A.
Running a query on a table returns ORA-600: Internal Error.

B.
Inserting a value into a table returns ORA-01722: invalid number.

C.
Creating a table returns ORA-00955: name us already in used by an existing objects.

D.
Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.

E.
Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE
data block corrupted (file # 14, block # 50) error.

Explanation:
The alert log 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
Note:
* The alert log file (also referred to as the ALERT.LOG) is a chronological log of messages and
errors written out by an Oracle Database. Typical messages found in this file is: database startup,
shutdown, log switches, space errors, etc. This file should constantly be monitored to detect
unexpected messages and corruptions.



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