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Question 1 Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? Question 2 With a necessary example explain (i)
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
What is Oracle Process? Explain any four processes started by Oracle. Oracle Process is as follows: SMON: The System Monitor carries out a crash recovery while a crashed in
how to design a bakery business in data base
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
A database administrator''s responsibilities and data contents
The functions of DBA ?
Illustrate how you can use QBE to perform logical AND and OR operation
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
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