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Define single valued and multivalued attributes.
Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes.
Multivalued attributes: Attributes with a set of value for a certain entity are known as multivalued attributes.
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Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
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Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
Database systems have many opposite efforts ?
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Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
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