ORA-600(504)(row cache objects)错误
客户数据库出现ORA-600(504)错误，其中第5个错误参数为row cache objects。
客户数据库出现ORA-600(504)错误，其中第5个错误参数为row cache objects。
以前碰到过一个shared pool的相关latch：
错误信息为：
Wed Apr 18 06:03:41 2012
Errors in file /data/Oracle/admin/orcl/udump/orcl_ora_19038.trc:
ORA-00600: 内部错误代码，参数: [504], [0x4628BD7A0], [32], [4], [row cache objects], [10], [2], [0x000000000]
数据库版本为9.2.0.6，根据MOS文档，导致问题的原因是查询了V$SQL_PLAN视图，且当前会话已经持有了一个不兼容的library cache latch。
Oracle给出的解决方法只有升级到10.2.0.1，对于10.2以下的版本，可以考虑设置隐含参数_cursor_plan_unparse_enabled的值为false来解决该问题。
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