使用DBMS_SUPPORT包(zt)
2024-07-21 02:33:10
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DBMS_SUPPORT包從Oracle7.2引入,主要功能用以提供更完整的用戶session跟蹤信息
DBMS_SUPPORT包從Oracle7.2引入,主要功能用以提供更完整的用戶session跟蹤信息 這個包可以通過運行 dbmssupp.sql 和 PRvtsupp.plb 兩個腳本來創建. 該腳本位于$ORACLE_HOME/rdbms/admin目錄下以下版本中都包含這些文件:8.0.6, 8.1.7, 9.0.1, 9.2.0 and above 1.創建DBMS_SUPPORT Package
SQL> @?/rdbms/admin/dbmssupp.sql Package created.
Package body created. SQL> @?/rdbms/admin/prvtsupp.plb Package body created.
2.主要函數及過程
SQL> desc dbms_support
FUNCTION MYSID RETURNS NUMBER
FUNCTION PACKAGE_VERSION RETURNS VARCHAR2
PROCEDURE START_TRACE
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
WAITS BOOLEAN IN DEFAULT
BINDS BOOLEAN IN DEFAULT
PROCEDURE START_TRACE_IN_SESSION
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
SID NUMBER IN
SERIAL NUMBER IN
WAITS BOOLEAN IN DEFAULT
BINDS BOOLEAN IN DEFAULT
PROCEDURE STOP_TRACE
PROCEDURE STOP_TRACE_IN_SESSION
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
SID NUMBER IN
SERIAL NUMBER IN
3.簡單用法 SQL> SELECT DBMS_SUPPORT.MYSID from DUAL; MYSID
----------
8 SQL> select dbms_support.PACKAGE_VERSION from dual; PACKAGE_VERSION
--------------------------------------------------------------------------------
DBMS_SUPPORT Version 1.0 (17-Aug-1998) - Requires Oracle 7.2 - 8.0.5
4.進程跟蹤(跟蹤當前session及其他session)
SQL> exec dbms_support.start_trace PL/SQL procedure sUCcessfully completed. SQL> select count(*) from dba_users; COUNT(*)
----------
34 SQL> exec dbms_support.stop_trace; PL/SQL procedure successfully completed. SQL> select sid,serial#,username from v$session
2 / SID SERIAL# USERNAME
---------- ---------- ------------------------------
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 764 SYS 8 rows selected. SQL> exec dbms_support.start_trace_in_session(4,1); PL/SQL procedure successfully completed. SQL> exec dbms_support.stop_trace_in_session(4,1); PL/SQL procedure successfully completed.
5.Trace文件以上跟蹤生成的Trace文件可以在udump目錄下找到.
SQL> show parameter user_dump NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
user_dump_dest string /opt/oracle/admin/hsjf/udump
