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Define upgrade and downgrade?
It gives a mechanism for conversion from shared lock to exclusive lock is called as upgrade.
It gives a mechanism for conversion from exclusive lock to shared lock is called as downgrade.
East Coast Aquarium Relational Database
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
what is check point in database management system
Define data model? A data model is a collection of conceptual tools for explaining data, data relationships, data semantics and consistency constraints.
Explain differance between Primary and secondary storage ? Primary and secondary storage Computer storage is classified within primary(main) memory and secondary(per
What are the Requirements of algorithm designer Algorithm designer should: i) Select proper algorithm so as to minimize implementation cost ii) Find most appropriate d
What is a hashing function? What are the properties of a good hashing function? Describe the folding technique for hashing functions. Ans: Hashing function is a method
A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
Why is database design important?
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. M
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