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What is Sqlplus username and password?
You are prompted to enter the password, FOX. In the command-line interface, if you omit the username and password, SQL*Plus prompts you for them.
What is Chkconfig in Linux?
chkconfig command is used to list all available services and view or update their run level settings. In simple words it is used to list current startup information of services or any particular service, updating runlevel settings of service and adding or removing service from management.
What is instance in database with example?
Definition of instance: The data stored in database at a particular moment of time is called instance of database. For example, lets say we have a single table student in the database, today the table has 100 records, so today the instance of the database has 100 records.
Which all databases Powercenter server on Unix can connect to?
Use native drivers to connect to IBM DB2, Oracle, or Sybase ASE databases. You can use ODBC to connect to other sources and targets.
What happens when you connect a database to an idle instance?
So here is a quick example of what happens; first I show that the database is running, but when I try to connect I get the “Connected to an idle instance” message.
How is SYSDBA connected to an idle instance?
SQL> connect / as sysdba Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 626327552 bytes Fixed Size 2230952 bytes Variable Size 310379864 bytes Database Buffers 306184192 bytes Redo Buffers 7532544 bytes Database mounted. Database opened.
How to shut down an idle SQL instance?
Someone shut it down manually by SQL or RMAN command without notifying DBA. You can just startup the instance either by SQL command or Windows Services. Instance shutdown itself for some reason. This would be a little complicated because the running instance decided to shutdown itself due to some severe incidents.
How to connect to a different instance in sqlplus?
It seems like the sqlplus session must be connected to a different instance than the application. Try specifying the connect identifier in the connect statement as follows: Case is significant on *nix systems, so make sure your ORACLE_SID exactly matches the instance name. In this case, ORA003 is NOT the same as ora003.