![]() SELECT hostname, instancename,TOCHAR (startuptime, 'DD-MM-YYYY HH24:MI:SS') startuptime, FLOOR (sysdate-startuptime) days FROM sys. For more information about Oracle (NYSE:ORCL), visit . Below query will show you Oracle database uptime and startup history. Oracle offers a comprehensive and fully integrated stack of cloud applications and platform services. My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts. To view full details, sign in with your My Oracle Support account.ĭon't have a My Oracle Support account? Click to get started! This document provides information to query information on the historical instance startup time. Oracle instance startup and shutdown history is captured in alert log and same can be checked from the query using dbahistdatabaseinstance view. You can look at difference between current time and startup time. You can check startup time and uptime using vinstance view. Information in this document applies to any platform. The startuptime field from vinstance view provides the time at which databases was started. Oracle Database Exadata Express Cloud Service - Version N/A and later Oracle Database Cloud Exadata Service - Version N/A and later Oracle Database Exadata Express Cloud Service - Version N/A and later Information in this document applies to any platform. Oracle Database Cloud Exadata Service - Version N/A and later ![]() Oracle Cloud Infrastructure - Database Service - Version N/A and later Oracle Database Exadata Cloud Machine - Version N/A and later Oracle Database - Enterprise Edition - Version 10.2.0.1 and later The startup history is listed from the latest to the oldest one.How to know historical information of Instance startup time SQL> select startup_time open_time from dba_hist_database_instance order by 1 desc To view all startup history of the database, we may extend the above query. If you found the difference of your case is only a few seconds, this is very normal for starting a database from idle to completely open. This query also give you the startup time for each instance. SQL> select max(startup_time) open_time from dba_hist_database_instance Īs you can see, the database open time was lagged about 10 minutes behind the instance startup time in this case. Using this query, you will be able to easily to fetch the details from the database. Here we wait for about 10 minutes, then open the database. Instance startup and shutdown take very long time but there is no indication of process hang, deadlock, or recovery process taking time. However Oracle shutdown / startup is fine before SAP backup: Thu Mar 4 14:33:28 2010 <-. Oracle Database - Enterprise Edition - Version 19.3.0.0.0 and later Microsoft Windows 圆4 (64-bit) Symptoms. A review of the alert.log, shows that the startup is taking a long time for both alter database mount and open to complete. Database Startup Timeįor database, the startup time is actually the open time. Right after offline backup of SAP database completed, database startup takes a very long time to start. You can start up the database from the desktop or with the SQL Command Line (SQLPlus). Thus, there is no need to start up the database unless you previously shut it down. ![]() It's the same except the state is MOUNT now. Oracle Database Express Edition (Oracle Database XE) starts up automatically immediately after installation and after each system restart. SQL> select status, startup_time from v$instance oraenv ORACLESID oracle orcl The Oracle base has been set to /scratch/u01/app/oracle Log in to SQLPlus as the SYSDBA user. Execute the oraenv command to set the environment variables. The below query gives the output of the last 10 start times of the database along with the timezone in Oracle, Click here for sample output. To shut down and restart the database instance, perform the following steps: Open a terminal window as the oracle user. SQL> select status, startup_time from v$instance Sometimes we have to find when the database is started with which timezone especially when the database is getting rebooted unknowingly in Oracle. SQL> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss' To check instance startup time, here we can query the instance under NOMOUNT state.įirst of all, we format the date time of current session. Additionally, we also check the startup history of the database in the last section of this post. To check Oracle database startup or restart time, we have to know the difference between instance startup time and database open time.
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