Adding rules to a data in a relational database, means adding what?Group of answer choicesPrimary KeyForeign KeyConstraintsPermission
Question
Adding rules to a data in a relational database, means adding what?
Group of answer choices
- Primary Key
- Foreign Key
- Constraints
- Permission
Solution
Adding rules to data in a relational database typically means adding Constraints. Constraints are used to limit the type of data that can go into a table. This ensures the accuracy and reliability of the data in the table. Constraints can be column level or table level.
Primary Key and Foreign Key are types of constraints. A Primary Key uniquely identifies each record in a table and must contain unique values. A Foreign Key is a column or a set of columns in one table, that is used to establish a link between the data in two tables.
Permission is not a rule added to the data but rather a security measure to control the access to the database.
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