問題：遇到ORA-00600 2662號錯誤時應當如何解決？

解答：在我們使用隱含參數_ALLOW_RESETLOGS_CORRUPTION并且resetlogs打開數據庫后,可能會遇到ORA-00600 2662號錯誤，此錯誤的含義如下:

A data block SCN is ahead of the current SCN.

The ORA-600 [2662] occurs when an SCN is compared to the dependent SCN

stored in a UGA variable.

If the SCN is less than the dependent SCN then we signal the ORA-600 [2662]

internal error.

模擬這個錯誤:

Thu Oct 20 10:38:27 2005

SMON: enabling cache recovery

Thu Oct 20 10:38:27 2005

Errors in file /opt/Oracle/admin/conner/udump/conner_ora_31607.trc:

ORA-00600: internal error code, arguments: [2662], [0], [897694446], [0], [897695488], [8388697], [], []

Thu Oct 20 10:38:28 2005

Errors in file /opt/oracle/admin/conner/udump/conner_ora_31607.trc:

ORA-00600: internal error code, arguments: [2662], [0], [897694446], [0], [897695488], [8388697], [], []

假如SCN相差不多，我們可以通過多次重起數據庫來解決此問題。

另外，我們也可以通過內部事件來解決此問題:

alter session set events 'IMMEDIATE trace name ADJUST_SCN level 1';