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What are the ways in which the variable-length records arise in database systems?
Storage of many record types in a file.
Record types that permit variable lengths for one or more fields.
Record types that permit repeating fields.
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What is meant by normalization of data? It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the prop
definition and its work
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
What is the function of a Domain? A domain defines the technical settings of a table field. A domain describes a value range, which sets the permissible data values for the
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
Explain sorted File with advantages? Sorted file The sort utility shall perform one of the subsequent functions: 1.Sort lines of all the named files together and write the
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
Some disadvantages of File Oriented System ?
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