How do you log in to Oracle database?

2 years ago
Liam
2 minutes

To login to the Oracle database, you can use either the SQLPlus command-line tool or Oracle SQL development tools such as Toad or SQL Developer. Here are the steps to login to the Oracle database using SQLPlus:

  1. Open the command prompt (Windows) or terminal (Linux/Unix).
  2. Type in the following command and press Enter:
  3. Connect to the database using SQLPlus with the specified username, password, hostname, port, and SID.
  4. The username is your Oracle database username, the password is the password, the hostname is the host name or IP address, the port is the port number (default is 1521), and the SID is the System Identifier of the database instance.
  5. For example, if the username is “scott,” the password is “tiger,” the hostname is “localhost,” the port number is 1521, and the SID is “orcl,” the command is as follows:
  6. Connect to the Oracle database with the username “scott” and password “tiger” on the localhost at port 1521 and database name “orcl” using sqlplus.
  7. If the username and password are correct, you will be logged into the Oracle database and see the SQL*Plus prompt SQL>.

Please note that the password in the above command is displayed in plain text. For security reasons, you can omit the password and let the system prompt you to enter it. For example:

sqlplus username@hostname:port/SID

After entering the command, the system will prompt you to enter the password.

Additionally, you can change your password after logging in. Use the ALTER USER statement at the SQL*Plus prompt to do so. For example:

ALTER USER username IDENTIFIED BY new_password;

In this case, the username is the user whose password needs to be changed, and the new_password is the new password.

I hope this helps you! If you have any other questions, feel free to ask anytime.

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