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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
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Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
Describe the candidate key functions ? Candidate Key and Alternate Key: In some instances, an entity will have more than one attribute which can serve as a primary key. Any key
Relational and E-R Model There are three types of constraints on relational database that have: DOMAIN CONSTRAINT PRIMARY KEY CONSTRAINT INTEGRITY CONSTRAINT
Determine the minimal set of functional dependencies for the following data. This table is part of the OHSU database of extracurricular activities and tracks the DMICE band's co
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the delet
tell me the functionality,advantages and disadvantages of student database
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Partial Key : It is a group of attributes that can uniquely identify small entities and that are related to same base entity. It is sometime named as Discriminator. Altern
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
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