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What is a homogeneous distributed database?
In homogeneous distributed databases, all sites have the same database management system software, are aware of one another, and agree to cooperate in processing user's requests.
What are the kinds of Strings? -A binary string in MySQL is one that MySQL treats as case sensitive in comparisons. -A non binary string in MySQL is one that MySQL does'nt
You are managing the following database system: • DBMS: Oracle 11g • OS: Sun Solaris • System architecture: Web-based application using ASP.Net • Purpose of Server: HR managem
Whenever the LIMIT clause will be used? LIMIT is used for the following kinds of problems: 1) Answering questions about first or last and largest or smallest 2) Splitting
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 to define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a
#what is cursor its uses ? Explain it
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Attributes that are directly kept in the data base. For example, 'Birth date' attribute of a person. Derived Attributes that are not stored directly but can be derived
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
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