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i have a homework assignment identical to one you have listed
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
sy bcs project of hospital managment system
Physical Database Design Issues The database design includes the process of logical design with the use of E-R diagram, normalisation, etc., followed by the physical design.
What is a recursive relationship? Give an example not used in the text. A recursive relationship is a relationship among an entity and itself. For example, given the entity PER
Northwind Pty Ltd sells a variety of food products throughout the world. They want to use the reporting features of SAP's Business Information Warehouse to better understand their
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
what do you mean by primary key constraint?
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