How to enter oracle database

Enter the Oracle database through the following steps: 1. Open the Oracle client. 2. Use the following command to connect to the database: sqlplus username/password@database_name. 3. After the connection is successful, use SQL commands to operate.

How to enter the Oracle database

To enter the Oracle database, you can use the following steps:

1. Open Oracle Client

• On Windows, find the "Oracle Database Client" shortcut and click it.
• On macOS, open Terminal, type "sqlplus" and press Enter.
• On Linux, open Terminal, type "sqlplus" and press Enter.

2. Connect to the database

After the prompt appears, enter the following command to connect to the database:

<code class="text">sqlplus username/password@database_name</code>

Among them:

• username is your Oracle username.
• password is your Oracle password.
• database_name is the name of the database you want to connect to.

Example:

<code class="text">sqlplus scott/tiger@orcl</code>

If the connection is successful, you will get a SQL prompt indicating that you are connected to the database.

3. Using SQL Commands

Once you are connected to the database, you can use SQL commands to create, query, update, and delete data. Here are some common SQL commands:

• SELECT: Retrieve data.
• INSERT: Create data.
• UPDATE: Update data.
• DELETE: Delete data.

For more information about SQL commands, see the Oracle documentation.

Tip:

• Make sure your Oracle username and password are correct.
• The database name may be uppercase or lowercase, depending on how you created the database.
• If you are experiencing connectivity issues, please check your network connection and make sure you have access to the database.

The above is the detailed content of How to enter oracle database. For more information, please follow other related articles on the PHP Chinese website!