ALTER SESSION SET TRACEFILE_IDENTIFIER='bak_control'; 执行备份命令: 执行ALTER DATABASE BACKUP CONTROLFILE TO TRACE命令,将控制文件的创建语句输出到跟踪文件中:sql ALTER DATABASE BACKUP CONTROLFILE TO TRACE; 查找跟踪文件: 使用V$PROCESS和V$SESSION视图来查找当前会话生成的跟踪文件位置:sql...
在一些案例中,该步骤会挂起(hang),语句ALTER DATABASE ADD SUPPLEMENTAL LOG DATA 在等待 shared 模式的TX lock 可以通过如下步骤来找到有问题的session connect / as sysdba alter session set tracefile_identifier='SUPP'; alter session set max_dump_file_size=unlimited; alter session set events '32593 erro...
SQL> Alter session set tracefile_identifier='controlfilerecreate' ; SQL> Alter database backup controlfile to trace noresetlogs; SQL> oradebug tracefile_name ; --> This command will give the path and name of the trace file Go to this location ,Open this trace file and select the controlfi...
(因为ORACLE首先要访问索引数据块,在索引上找到了相应的键值,然后按照键值上的rowid 再去访问表中相应的数据...SQL> alter session set sql_trace=true; Session altered...> alter session set tracefile_identifier='full_scan'; Session altered SQL> alter session set sql_trace...即使在表索引没有被分析...
CreateEventSession CreateExtendedProcedure CreateExtendedProperty CreateExternalLanguage CreateExternalLibrary CreateExternalResourcePool CreateFulltextCatalog CreateFulltextIndex CreateFulltextStoplist CreateFunction CreateIndex CreateLinkedServer CreateLinkedServerLogin CreateLogin CreateMasterKey CreateMessage CreateMessageType...
For example, if you have a tool that uses SET TRANSACTION USE ROLLBACK SEGMENT statement, you can add the statement "ALTER SESSION SET UNDO_SUPPRESS_ERRORS = true" to the tool to suppress the ORA-30019 error. UNDO_TABLESPACE Parameter type String Syntax UNDO_TABLESPACE = undoname ...
CreateEventSession CreateExtendedProcedure CreateExtendedProperty CreateExternalLanguage CreateExternalLibrary CreateExternalResourcePool CreateFulltextCatalog CreateFulltextIndex CreateFulltextStoplist CreateFunction CreateIndex CreateLinkedServer CreateLinkedServerLogin CreateLogin CreateMasterKey CreateMessag...
Alter session未正确更改会话 Alter session是一种在数据库中修改会话参数的命令。通过使用Alter session命令,可以更改当前会话的特定参数,以满足特定需求或优化数据库性能。 Alter session命令可以用于修改会话的各种参数,例如: NLS参数:可以更改日期、时间、货币和语言等本地化设置。 优化器参数:可以修改查询优化器的行为...
If you specify only CANCEL, session control returns when the recovery process actually terminates. Specify CANCEL IMMEDIATE to terminate the managed recovery operation after applying all the redo in the current archived redo file or after the next redo log file read, whichever comes first. Session...
Sets the maximum number of days the session key is valid. This value of n is 1 - 32767. If the key interval is longer than the installation maximum (set with SETROPTS SESSIONINTERVAL), the INTERVAL is not changed. NOINTERVAL There is no limit on the number of days the key is valid....