In the relational model, relationships between relations or tables are created by using:

Related MCQs

• In the relational model, relationships between relations or tables are created by using:
• A relational database system needs to maintain data about the relations, such as the schema of the relations. This is called
• A relational database system needs to maintain data about the relations, such as the schema of the relations. This is called
• The relational model is based on the concept that data is organized and stored in two-dimensional tables called ……………………….
• Which of the following is not a relational algebraic operation that is developed specifically for the relational databases?
• Which data model organizes the data in the form of tables and relations?
• 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.
• Relational Algebra is a                      query language that takes two relations as input and produces another relation as an output of the query.
• Relational schemas and other metadata about relations are stored in a structure called the