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waht is a repeating group?
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
describe objectivde of file organisation
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Modular growth: In distributed environments, it is simple to expand. Latest sites can be added to the network without affecting the operations of other sites, as they are somewhat
Project Description: This is going to be a School portal to handle each activities in school such as, School fees payment, online registration and every other payment, course re
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
What is the difference between a HAVING CLAUSE and a WHERE CLAUSE? HAVING CLAUSE - HAVING CLAUSE is used only with SELECT statement. - It is normally used in a GROUP BY
what is view?explain
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