CMPTR
3rd Edition
ISBN: 9781337681872
Author: PINARD
Publisher: Cengage
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In computer science, what is the difference between normalising and denormalizing data?
Logical level of data abstraction deals with how a record is stored. True or False?
66.
ARIES uses a ___________ to identify log records, and stores it in database pages.
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Log sequence number
b.
Log number
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Lock number
d.
Sequence
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- How do procedures for storing data really work?arrow_forwardDocument data is a type of record data types that deals with continuous data is it true or false?arrow_forwardA null bitmap is used in the variable-length record format to indicate that an attribute has no value. In a few odd cases, the majority of a tuple's properties are null. It is possible to minimise the cost of a null attribute to a single bit by modifying the way records are represented.arrow_forward
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