ORACLE10G如何清除OEM下的歷史警告信息
問題描述：OEM的HOME頁面可以顯示ORACLE的報警信息，但報警事件清除后該信息不會自動清除。隨著時間的增長，信息量逐漸加大，解決方法是手工予以清除。
Sample
Cluster Database
Tablespaces Full
Tablespace Free Space (MB)
2008-12-8 10:24:36
Sample1
Database Instance
Waits by Wait Class
Database Time Spent Waiting (%)
2008-12-10 0:45:07
Sample1
Database Instance
Global Cache Statistics
Global Cache Average Current
Block Request Time (centi-seconds)
2008-12-10 0:45:07
Sample2
Database Instance
Waits by Wait Class
Database Time Spent Waiting (%)
2008-12-10 0:44:42
Sample
Cluster Database
Invalid Objects by Schema
Owner's Invalid Object Count
2008-12-9 9:31:08
解決步驟：
1、用下面的語句組裝生成清除警告信息的腳本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('6DB37247A7C97ED3ED8BAA58B26CA47A','D6438569B496BC9205481E8A70F92F1E','SYS_p550b');
exec em_severity.delete_current_severity('6F95E72E3550CDA14CA88B085851A52C','2448AD7604076832840D5B18E562B9C2','ADCPHC');
3 rows selected.
2、以sysman用戶login SQLPLUS后執行上一步生成的腳本(注意是sysman用戶，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','D6438569B496BC9205481E8A70F92F1E','SYS_p550a');
PL/SQL procedure successfully completed
SQL>
可能出現的問題：
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
問題原因及處理：可能你用sys登錄執行了腳本，必須以sysman登錄執行
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