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Objectives
What is object containment? References among objects can be used to model dissimilar real-world concepts.
#floating point representation is used to store
How does the two phase protocol ensure serializability in database schedules? Ans: A transaction is termed to follow the two-phase locking protocol if all locking operations
How is the database organised in Oracle? Database organized within Oracle in terms of table and table holds attributes and values. A database consists of one or more logical
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
vertical fragmentation
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
Compare three clustering algorithms in Weka. For this comparison, you will need to use at least two different datasets. Run the algorithms on the datasets, and use the visual
In tuple relational calculus P1 → P2 is equivalent to ? A In tuple relational calculus P1→ P2 is equivalent to ¬P1 V P2. (The logical implication expression A B, meaning
How can we Classify the operations on classes This step fundamentally means all three models functional, object and dynamic (studied in last section) must be combined so that
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