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#what is cursor its uses ? Explain it
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
What are metrics for choosing the best algorithm? Matrices for choosing the best algorithms are as below: Computational complexity Ease of understand ability and im
what is binary relationship
data models are being replaced over years. Reasons and why does that happen?
By using the delete operation some consisting records can be deleted from a relation. To delete some definite records from the database a condition is also specified based on which
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.
Chapter 10a review questions
Describe in brief about the Sequence Diagrams Sequence diagrams are interaction diagrams which emphasize time ordering of messages. In UML, it is shown as a table which shows
Define granularity, hierarchy of granularity of locks & multiple granularity locking. Explain the modified two phase locking along with multiple granularity locking. Ans: The s
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