最近遇到的bug比较多，因此在blog上新开一个分类：BUG。
今天遇到的bug是ORA-07445 [kghbigghs]。
metalink的解释：
Cause
The cause of this problem has been identified in Bug 2805580.
It is caused when PGA changes in size often and PGA_AGGREGATE_TARGET is used.
Solution
To fix the issue, there are the following possibilities:
(1). Use the workaround:
Set the following parameters in the init.ora/spfile and restart the database
PGA_AGGREGATE_TARGET = 0
WORKAREA_SIZE_POLICY = MANUAL
(2). Apply patchset 9205 or higher. The latest patchset (9208) is available from Metalink under Patch 4547809.
(3). A one-off patch may be available for your platform and version under Patch 2805580.
系统一直运行得比较稳定，升级暂时是不可能的了。
参数也不能修改，影响太大，只能先放在一边，希望以后不再出现。
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/231499/viewspace-63881/ ，如需转载，请注明出处，否则将追究法律责任。
