_______ is a constraint that enforces data integrity by ensuring that a column cannot contain NULL values.
- Foreign Key
- NOT NULL
- Primary Key
- Unique Key
NOT NULL is a constraint that enforces data integrity by ensuring that a column cannot contain NULL values. It is used to specify that a column must have a value, preventing the insertion of records with missing or undefined data.
Loading...
Related Quiz
- A social media platform needs to store a vast amount of multimedia content, including images and videos. Discuss the considerations they should take into account when implementing compression techniques for this data.
- How does eventual consistency differ from strong consistency in NoSQL databases?
- What are the key differences between a superclass and a subtype in a Generalization and Specialization hierarchy?
- How does denormalization affect data integrity and consistency?
- What is the significance of storage optimization in relational schema design?