Description: Table constraints are rules that limit the type of data that can be inserted into a table within a database. These constraints are fundamental for maintaining data integrity and quality, ensuring that the stored information meets certain predefined criteria. There are several types of constraints, such as primary key constraints, which ensure that each row in a table is unique; foreign key constraints, which establish relationships between tables; and uniqueness constraints, which prevent duplication of values in a specific column. Additionally, check constraints allow for defining specific conditions that data must meet before being accepted. Implementing these constraints not only helps prevent errors and inconsistent data but also facilitates the management and maintenance of the database over time. In an environment where data accuracy is crucial, table constraints become an essential tool for database administrators and developers, allowing for stricter control over the information being handled.
