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转载http://www.52php.cn/article/p-akmaxoyj-ku.html
ORACLE10G如何清除OEM下的历史警告信息
问题描述：OEM的HOME页面可以显示ORACLE的报警信息，但报警事件清除后该信息不会自动清除。随着时间的增长，信息量逐渐加大，解决方法是手工予以清除。
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严重性
目标名称
目标类型
类别
名称
消息
预警触发时间
Sample
Cluster Database
Tablespaces Full
Tablespace Free Space (MB)
Tablespace [TEMP] only has [0 megabytes ] free space
2008-12-8 10:24:36
Sample1
Database Instance
Waits by Wait Class
Database Time Spent Waiting (%)
事件类 "Cluster" 的度量 "Database Time Spent Waiting (%)" 位于 100
2008-12-10 0:45:07
Sample1
Database Instance
Global Cache Statistics
Global Cache Average Current
Block Request Time (centi-seconds)
度量 "Global Cache Average Current Get Time" 位于 .95
2008-12-10 0:45:07
Sample2
Database Instance
Waits by Wait Class
Database Time Spent Waiting (%)
事件类 "Other" 的度量 "Database Time Spent Waiting (%)" 位于 64.10273
2008-12-10 0:44:42
Sample
Cluster Database
Invalid Objects by Schema
Owner's Invalid Object Count
WLSN 方案中存在 24 个无效对象。
2008-12-9 9:31:08
解决步骤：
1、 用下面的语句组装生成清除警告信息的脚本
select 'exec em_severity.delete_current_severity(''' || target_guid ||''',''' || metric_guid || ''',''' || key_value || ''');' from sysman.MGMT_CURRENT_SEVERITY
'EXECEM_SEVERITY.DELETE_CURRENT_SEVERITY('''||TARGET_GUID||''','''||METRIC_GUID|
--------------------------------------------------------------------------------
exec em_severity.delete_current_severity('01BA0082955EC11184C650961DC16313','86821B5F0CE858D6E4A7F7390E88B73C',' ');
exec em_severity.delete_current_severity('6DB37247A7C97ED3ED8BAA58B26CA47A','C733EA1CFA96377F492528E305462C9D','Other');
exec em_severity.delete_current_severity('6F95E72E3550CDA14CA88B085851A52C','2448AD7604076832840D5B18E562B9C2','ADCPHC');
3 rows selected.
2、以sysman用户login SQLPLUS 后执行上一步生成的脚本（注意是sysman用户，用sys不行）
Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.3.0
Connected as SYSMAN
SQL> exec em_severity.delete_current_severity('FC17617395481D6B11DED9FE7CA63BF8','SYS_p550a');
PL/SQL procedure successfully completed
SQL>commit;
可能出现的问题：
ORA-06550: line 1,column 7:
PLS-00201: identifier 'EM_SEVERITY.DELETE_CURRENT_SEVERITY' must be declared
ORA-06550: line 1,column 7:
PL/SQL: Statement ignored
问题原因及处理：可能你用sys登录执行了脚本，必须以sysman登录执行
（编辑：李大同）
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