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What is conceptual schema?
The schemas at the view level are known as subschema that describe dissimilar views of the database.
Explain three main attributes of data.
sir, could anybody help me in getting complete information about the mentioned topic
various techniques of hashing?
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is the need for triggers? Triggers are useful mechanisms for alerting humans or for starting particular tasks automatically when particular conditions are met.
Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key. Ans: 3NF A relation is in 3 NF if an attribute of
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
explain in detail about crash recovery
recovey techniques based on deferred update and immediate update
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