Database-Management-System Archives - Page 81 of 158

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August 29, 2024

Database-Management-System

Question 439 In relational database management, which of the following is/are property/properties of candidate key? P:Uniqueness Q: Irreducibility A P only B Q only C Both […]

August 29, 2024

Database-Management-System

Question 444 Following table has two attributes Employee_id and Manager_id, where Employee_id is a primary key and manager_id is a foreign key referencing Employee_id with on-delete […]

August 29, 2024

Database-Management-System

Question 446 Consider the following three SQL queries (Assume the data in the people table): (a)Select Name from people where Age > 21; (b)Select Name from […]

August 29, 2024

Database-Management-System

Question 470 Consider the following database table: Create table test( one integer, two integer, primary key(one), unique(two), check(one >= 1 and <= 10), check(two >= 1 and <= 5)) How many […]