A relational database system needs to maintain data about the relations, such as the schema of the relations. This is called

Related MCQs

• A relational database system needs to maintain data about the relations, such as the schema of the relations. This is called
• A                  is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.
• Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
• Database __________ , which is the logical design of the database, and the database _______,which is a snapshot of the data in the database at a given instant in time.
• In a relational schema, each tuple is divided into fields called
• Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary) Here the dept_name attribute appears in both the relations. Here using common attributes in relation schema is one way of relating ___________ relations.
• Department (dept name, building, budget) and Employee (employee_id , name, deptname,salary) Here the dept_name attribute appears in both the relations .Here using common attributes in relation schema is one way of relating ___________ relations.
• The algorithm that takes a set of dependencies and adds one schema at a time, instead of decomposing the initial schema repeatedly is
• Which of the following has each related entity set has its own schema and there is an additional schema for the relationship set?
• Which of the following has each related entity set has its own schema and there is an additional schema for the relationship set.