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Define Sequence A sequence is a set of integers 1, 2, 3 that are generated in order on demand. Sequences are regularly used in databases because lots of applications require ev
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
(a) Design a query plan for the following distributed query: An application at site B wants to compute a join of STUDENT ? Id=StudId TRANSCRIPT where STUDENT (Id,Major) is at site
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
why are older data models are being replaced by new data models
Why does a DBMS query language is designed? A DBMS query language is designed to support end users who use English-like commands. support in the development of complex applicat
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
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
What is multiple relationship ?
What are the uses of the information in the Data dictionary? The following information is directly taken from the Data dictionary: Information on fields displayed with
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