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What is a hash index?
A hash index organizes the search keys, with their associated pointers, into a hash file structure.
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
What is OLAP? OnLine Analytical Processing (OLAP) is a Business Intelligence (BI) reporting system. OLAP gives the user with the capability to sum, count, average and do other
How do I use strap on?#
Explain the relevance of Data Dictionary in a Database System? Data dictionary is a database in its own right residing on the disk that consist of Meta data which is = Data abo
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
How can Redundant Associations be done It can be done by asking questions: i) Is there a specific arrangement of network which would optimize critical aspects of completed
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
How can i turn a conceptual entity relationship diagram into a logical entity relationship diagram? what do i have to do with "mandetory or" and "optional or" relationships?
Express types of information available in MySQL? Information as regards the result of queries: This includes number of records affected by any SELECT or UPDATE or DELETE st
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