Podcast
Questions and Answers
Which of the following is NOT a characteristic of a database user account?
Which of the following is NOT a characteristic of a database user account?
- A default tablespace
- An authentication method
- Operating system version (correct)
- A unique username
What is the primary purpose of a database schema?
What is the primary purpose of a database schema?
- To define the physical storage of data on disk
- To encrypt sensitive data stored in the database
- To provide a logical grouping of database objects owned by a user (correct)
- To control user access rights and permissions
Which type of user privilege enables a user to perform specific actions across the entire database?
Which type of user privilege enables a user to perform specific actions across the entire database?
- Object privilege
- Schema privilege
- Role-based privilege
- System privilege (correct)
What is a key benefit of using roles in database privilege management?
What is a key benefit of using roles in database privilege management?
In the context of Oracle database security, what does 'System security' primarily cover?
In the context of Oracle database security, what does 'System security' primarily cover?
Which of the following actions can a DBA perform to control user access and maintain database security?
Which of the following actions can a DBA perform to control user access and maintain database security?
Which SQL command is used to create a new database user?
Which SQL command is used to create a new database user?
After creating a user, what SQL command is used to grant specific system privileges?
After creating a user, what SQL command is used to grant specific system privileges?
Which of the following system privileges might an application developer typically require?
Which of the following system privileges might an application developer typically require?
Which of the following is an example of an object privilege?
Which of the following is an example of an object privilege?
Flashcards
Unique Username
Unique Username
A unique identifier for a database user, used for login and identification.
Authentication Method
Authentication Method
A verification process to confirm the user's identity when logging in.
Default Tablespace
Default Tablespace
The default storage area allocated for a database user's data.
Temporary Tablespace
Temporary Tablespace
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User Profile
User Profile
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Initial Consumer Group
Initial Consumer Group
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Account Status
Account Status
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Schema
Schema
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User Privileges
User Privileges
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System Security
System Security
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Study Notes
Database User Accounts
- Each database user account has unique attributes: a unique username, an authentication method, a default tablespace, a temporary tablespace, a user profile, an initial consumer group, and an account status.
- A schema is is a collection of database objects owned by a database user, sharing the same name as the user account.
Privileges
- System privileges enable a user to perform specific actions within the database.
- Object privileges allow a user to access and manipulate a specific object.
Benefits of Roles
- Roles provide easier privilege management, dynamic privileges management, and selective availability of privileges.
Controlling User Access
- In a multiple-user environment, maintain database security by controlling database access, granting access to specific objects, confirming privileges with the Oracle data dictionary, and creating synonyms for database objects.
- Database security categories include system security, covering access and use at the system level, and database security, covering access and use of database objects and user actions.
Privileges
- Database security encompasses both system and data security.
- System privileges grant access to the database.
- Object privileges enable manipulation of the content of database objects.
- Schemas are collections of objects like tables, views, and sequences.
Creating Users
- Syntax to create users:
CREATE USER username IDENTIFIED BY password;
User System Privileges
- A DBA can grant specific system privileges to a user after creation.
- Syntax:
GRANT PRIVILEGE [privilege_type] TO username [,user| role, PUBLIC]; - An application developer might have system privileges such as CREATE SESSION, CREATE TABLE, CREATE SEQUENCE, CREATE VIEW, and CREATE PROCEDURE.
Roles
- Roles involve users, privileges, allocating privileges without a role, managers, and allocating privileges with a role.
Object Privileges
- Object privileges include Alter, Delete, Execute, Index, Insert, References, Select, and Upgrade.
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