How to set up users of oracle

Create a user in Oracle Follow these steps: Create a new user using the CREATE USER statement. Grant the necessary permissions using the GRANT statement. Optional: Use the RESOURCE statement to set the quota. Configure other options such as default roles and temporary tablespaces.

How to create a user in Oracle

1. Use the CREATE USER statement

To create a new user, use the following CREATE USER statement:

 <code>CREATE USER  IDENTIFIED BY  [DEFAULT TABLESPACE ]</code>

For example:

 <code>CREATE USER newuser IDENTIFIED BY mypassword DEFAULT TABLESPACE userspace;</code>

2. Grant permissions

After creating a user, the user needs to be granted the necessary permissions to access and operate the database object. Permissions can be granted using the GRANT statement, for example:

 <code>GRANT  ON  TO </code>

For example, grant newuser SELECT permissions to the MYTABLE table:

 <code>GRANT SELECT ON MYTABLE TO newuser;</code>

3. Optional: Set quota

You can also set user resource quotas using the RESOURCE statement, for example:

 <code>ALTER USER  QUOTA  ON </code>

For example, set the CPU usage quota of newuser to 1 second:

 <code>ALTER USER newuser QUOTA 1 SECOND ON CPU;</code>

4. Configure other options

You can also configure other user options, such as:

• PROFILE: Specifies the default resource limit for the user.
• TEMPORARY TABLESPACE: Specifies the space for the user's temporary table.
• DEFAULT ROLE: Specify the default role of the user.

For example, set the default role of newuser to DBA:

 <code>ALTER USER newuser DEFAULT ROLE dba;</code>

hint:

• Use a strong password to protect user accounts.
• Grant permissions with caution and only the necessary permissions are granted.
• Regularly check and manage user permissions for security.

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