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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
i need to submit in this topic.
The participation Constraints shows whether the existence of an entity depends on its being associated to another entity by the relationship type. There are two kinds of participat
What is called mirroring? The simplest approach to introducing redundancy is to duplicate each disk. This method is called mirroring or shadowing.
Which operator is used to compare a value to a list of literals values that have been specified? BETWEEN operator is used to compare a value to a list of literals values that h
Which data type can store unstructured data? Raw data type can store unstructured data.
Fourth Normal Form (4NF) When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued d
Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica
what is attribute is attribute inheritance in dbms?
Java program for horrizontal fragmentation in distributed database
what is view?explain
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