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Define Query Processing Query processing is the process of selecting the best plan or strategy to be employed in responding to a database request. The plan is then executed to
define locking in simple language and decribed it
Example -GRANT CREATE SESSION TO MCA12; (This command gives system level permission on creating a session - not portable) GRANT SELECT ON EMP TO MCA12; (Object level permi
Question 1 What do you mean by database management system? Question 2 Write a note on Object-Oriented Model Question 3 Explain Sequential File Organization Question
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
What is object containment? References among objects can be used to model dissimilar real-world concepts.
what is query processing?
Q. Define a weak entity set and its identifying relationship. List the necessary conditions for a meaningful identifying relationship set of a weak entity set. Entity is a t
Critically explained the benefits and limitations of different database technologies with proper examples
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.
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