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notes about update opreation
Need for Multiple Access Paths In practice, most of the online information systems need the support of multi-key files. For example, consider a banking database application hav
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
State your technical objectives for mining the data. Data Understanding. Describe the data For each attribute, give its description and data type. For numeric attributes
Ask questiwhat is row indicator in database on #Minimum 100 words accepted#
properties of derirable decomposition
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
Explain the Cartesian product: The Cartesian product operation does not need relations to union-compatible. The meaning of this is that the involved relations may have dissim
Question: This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each.
Create an index for the table Client, field CLIENT_NO of Q ? Command: CREATE INDEX client_client_no ON client(client_no);
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