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Define average seek time.
The average seek time is the average of the seek times, calculated over a sequence of random requests.
Describe queries with complex types? The present extension of the SQL query language deal with the complex type Let us start with the simple example: Find the title and t
State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
Compute the closure (F+) for the following set of the functional dependencies defined on R(a,b,c,d), where F - {c→ a, ab → d, a → b, d → c}, i.e. what are all of the FDs implied b
What is Relational Algebra? Relational algebra is a Procedural query Language?
Attributes that are directly kept in the data base. For example, 'Birth date' attribute of a person. Derived Attributes that are not stored directly but can be derived
Design a gennalization and specialization hierarchy for an automobile sales company
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
Question: This Question refers to the database schema given in the Appendix. (a) The integrity of a database is enforced by integrity rules. Discuss what should happen on a
I want an iPad app that is a simple 1 page form to complete with text. The Objective is to allow a few dozen people of the same organization (they're all on iPad) to open the app,
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