How to create a database in Oracle?

2 years ago
Benjamin Taylor
2 minutes

To create an Oracle database, you need to follow the steps below:

  1. Install the Oracle database software: Download the Oracle database software suitable for your operating system from the official Oracle website and follow the installation wizard to install it.
  2. Configure database instance: During the installation process, you will be prompted to create a database instance. Set the name, password, and other relevant parameters for the database instance.
  3. Start the database instance: After installation is completed, start the database instance. Enter the following command in the command line interface: sqlplus / as sysdba. Enter the password for the database administrator (sys), and then enter the startup command to start the database instance.
  4. Creating a database: Once the database instance is started, you can use SQL commands or Oracle Enterprise Manager (a visual management tool) to create a database. Some common SQL commands used for creating a database are as follows:
  5. Make a new database with the name ‘database_name’.
  6. Please replace “database_name” with the name of the database you would like to create.
  7. Adjusting database parameters: After creating the database, you may need to make some configuration changes based on your requirements. You can use the following command to modify the database parameters.
  8. Change the system setting to a specific value.
  9. Please replace parameter_name with the parameter name to be modified, and replace value with the new parameter value.
  10. Create tablespace and user: Creating tablespace and user in the database to store and manage data. Common SQL commands for creating tablespace and user are as follows:
  11. Create a new tablespace with the specified name and file path, and a size set for it. Create a new user with the given username and password, setting the default tablespace to the previously created one. Grant connect and resource permissions to the user.
  12. Please replace tablespace_name with the name of the tablespace, file_path with the path of the data file, size with the size of the tablespace, username with the username, and password with the user password.

Following the steps above will allow you to successfully create an Oracle database. It is important to note that this is just a general overview, and specific steps may vary depending on your environment and requirements. It is recommended to consult the official Oracle documentation or seek assistance from a professional database administrator to ensure correct operation.

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