1 CONNECT username/password@host[:port][/service_name][/instance_name] 2 CONNECT username/password@host[:port][/service_name] 3 sqlplus / as sysdba 4 sqlplus sys as sysdba/sys@127.0.0.1:1521 如果我是这个样子 NAMES.DIR
% Total Call Time = time for each timed event / total call timeWait Class: 等待类型Concurrency,System I/O,User I/O,Administrative,Other,Configuration,Scheduler,Cluster,Application,Idle,Network,Commit2-1 Time Model StatisticsTime Model Statistics几个特别有用的时间指标:parse time elapsed、hard parse...
oracledb_wait_time_application 应用等待时间 oracledb_wait_time_commit 提交等待时间 oracledb_wait_time_concurrency 并发等待时间 oracledb_wait_time_configuration 配置等待时间 oracledb_wait_time_network 网络等待时间 oracledb_wait_time_other 其他等待时间 oracledb_wait_time_scheduler 调度器等待时间 oracle...
service - Network Manager Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; disabled; vendor preset: enabled) Active: inactive (dead) since Thu 2021-05-06 14:52:01 CST; 149ms ago Docs: man:NetworkManager(8) Main PID: 771 (code=exited, status=0/SUCCESS) May 06 14:43:52 ...
SELECT SUM(WAIT_COUNT) FROM DBA_HIST_WAITSTAT WHERE SNAP_ID = :B3 AND DBID = :B2 AND INSTANCE_NUMBER = :B1 2、buffer HIT%: 经典的经典,高速缓存命中率,反应物理读和缓存命中间的纠结,但这个指标即便99% 也不能说明物理读等待少了 不合理的db_cache_size,或者是SGA自动管理ASMM /Memory 自动管理...
156 9.3.3 If the instance fails, the application should fail over to the other node's listener, reserving any SELECT statements in progress. 157 #9.4创建客户端网络配置PROD2。它应该连接到服务与a 专用服务器连接。 158 9.4 Create a Client-side Network configuration PROD2. It should connect to...
http://datavirtualizer.com/wait-event-and-wait-class-metrics-vs-vsystem_event/ 2、cx_Oracle cx_Oracle 是一个 Python 扩展模块,可以访问 Oracle 数据库。它符合 Python 数据库API 2.0 规范。 2.1、基本要求 要在Python 和 Oracle 数据库中使用cx_Oracle 7,需要满足以下条件: ...
Pool[XA]DataSource.abandonedConnectionTimeout 设置将非活动借用连接(借用但未使用)召回连接池的超时。Pool[XA]DataSource.timeToLiveConnectionTimeout Si与 abandonedConnectionTimeout 类似,但它需要借用连接的整个时间。Pool[XA]DataSource.connectionWaitDuration/connectionWaitTimeout 借用连接的等待时间--以秒或持续...
Synchronization Instance Subnet Select the subnet where the synchronization instance is located. You can also clickView Subnetsto go to the network console to view the subnet where the instance resides. By default, the DRS instance and the destination DB instance are in the same subnet. You need...
wait for DLM latch latchtype gets immediate wait for influx DLM latch latchtype latchaddr not used wakeup time manager not used not used not used write complete waits file# block# id writes stopped by instance recovery by thread # our thread# not used Parameter...