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Speedup Query Processing:A query that includes data at various sites can be split into sub-queries. These sub- queries can be implemented in parallel by various sites. Such parallel sub-query evaluation permits faster processing of a user's query. In such type of cases in which data is replicated, queries might be sent to the least heavily loaded sites.
Three Level Architecture of DBMS or Logical DBMS Architecture The logical architecture defines how data in the database is perceived by users. It is not deals with how the da
Compare three clustering algorithms in Weka. For this comparison, you will need to use at least two different datasets. Run the algorithms on the datasets, and use the visual
write an SQL statement to create the database in MYSQL server
triggering
Explain outer join? Outer Join - If there are any values in one table which do not have corresponding value(s) in the other, in an equi-join which will not be chosen. Such ro
Single-Valued Dependencies A database is a collection of related information and it is therefore inevitable that some items of information in the database would depend on some
Determine the rule that a value of a foreign key should appear as a value of some particular table is called a Ans: Referential constraint. The rule that a value of a fo
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Express the properties of Strings? Strings can be case sensitive (or not) which can change the outcome of string operations. You can evaluate whole strings \ just part
The entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity, and No of Years. Activity represents some campus-based student activity, and No o
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