Oracle login connection
I. Login
1. Use the client
Directly configure in database:
IP: 1521/orcl
The IP address is the IP address to connect.
1521 indicates the port of the database to be connected.
Orcl indicates the Instance name of the database to be connected.
2. Use command line
Ii. Monitoring
Lsnrctl status -- View listener lsnrctl start -- start listener lsnrctl stop -- disable listener
Oracle login connection problems
When the connection fails, an error will be reported. It is best to copy the error code and search Baidu for it.
Oracle login Problems
This is an oracle user management mode. It refers to operating system management. If you log on to an oracle user of the operating system, you do not need to enter the oracle account and password to log on to sysdba. Because you have logged on to the oracle operating system user, oracle believes that your login is trustworthy, Because you log on to the operating system user, you can do anything.
If you are a client, you can enter an account to log on to sysdba:
Connect sys/xxx @ sid as sysdba