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Explain the Weak Entity Set
An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in an organization do not comprise an identifying attribute.
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
Explain nested relations? Nested relations The assumption of INF is a natural one in the bank examples we have considered. However, not all applications are best modelled
what characterizes the levels in RAID technology
What is primary Key Explain? Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, chang
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
Define a table in SQL known as Client that is used to store information about the clients. Define CLIENT_NO as the primary key whose first letter must begin with ‘C'. Also ensure t
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
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