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Key, Q. Explain the terms key constraints participation constraints and m...
Q. Explain the terms key constraints participation constraints and mapping caradinalities in ER model. Participation Constraints : The participation of an entity set E i
Briefly explain the state diagram by taking one example, Briefly explain th...
Briefly explain the state diagram by taking one example. State Diagram - An object can be given a sequence of input instructions. The state of the object can vary depending u
Define aggregate functions, Define Aggregate functions and what aggregate f...
Define Aggregate functions and what aggregate functions supported by the MySQL To calculate a summary value from a set of individual values and uses one of the functions known
When are two schedules said to be view equivalent, When are two schedules s...
When are two schedules said to be view equivalent? Ans: Two schedules that is denoted as S and S' are said to be view equivalent if the subsequent three conditions are met
Get details of employee working on both comp354 and comp345, Consider the r...
Consider the relations EMPLOYEE(emp#, name) ASSIGNED_TO(project#, emp#) PROJECT(project#, project_name, chief) Express the subsequent queries in Relational Algebra (i) Ge
Describe the composite key, Describe the Composite Key Composite Key: ...
Describe the Composite Key Composite Key: Sometimes one key is not enough to uniquely recognize a row. E.g. in a single class Roll is enough to search a student, but in the w
Explain different addressing modes of 8086, 1. Explain different addressing...
1. Explain different addressing modes of 8086 Explanation of all addressing modes 2. Write a sequence of instructions to exchange two register contents using stack
Linear commit protocol, With the linear commit protocol, sites are connecte...
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
Relational algebraic operators, Problem Explain at least five relationa...
Problem Explain at least five relational algebraic operators with a suitable example. Note: All the above descriptions should be done by taking at least two examples from ou
Clinic, Need a sample of a clinic database relationships
Need a sample of a clinic database relationships
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