The _______ constraint ensures that a value in a column matches one of a set of predefined values.
- Check
- Default
- Foreign
- Unique
The Check constraint is used to ensure that a value in a column matches a specific condition or set of conditions, including predefined values. It helps in maintaining data accuracy and consistency within the database.
Loading...
Related Quiz
- _______ allows data modelers to work on the same project simultaneously.
- The relationship between a department and an employee in a company database is typically _______.
- In NoSQL databases, _______ consistency model ensures that all updates are immediately visible to all clients.
- Scenario: A project manager wants to visualize the interactions between different components of a system. Which modeling language would be most suitable for this purpose, SQL or UML?
- How does data partitioning work in column-family stores?