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What is trigger
Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
Define the terms entity, attribute, role and relationship between the entities, giving examples for each of them. Ans: Entity: An entity is a "thing" or "object" in th
Explain the Strategy of Database Planning ?
explain equi-join using illustration
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
What are partial, alternate,, artificial, compound and natural key? Partial Key: It is a set of attributes that can uniquely recognize weak entities and that are related to s
task upload
Describe Query evaluation engine? Query Evaluation engine: Vehicle executes low-level instructions obtained through the DML compiler. The Storage Manager Components gives in
What is multiplicity in the associations? Give an example to explain multiplicity? Multiplicity in association indicate number of objects participate in any relationship. For
Differentiate between join and outer join? Outer joins return all rows from at least one of the tables or views mentioned within the FROM clause, as long as those rows get toge
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