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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.
Explain concurrency control? Concurrency control Oracles multiversion concurrency control varies from the concurrency mechanism used by some other data base vendors. Read
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
how does Btree differ from a B+ - tree?
Hierarchical
what should be included in this???
A database administrator''s responsibilities and data contents
The Database administrator (DBA) uses the data dictionary in each phase of a database life cycle, beginning from the data gathering phase to the design, execution and maintenance p
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
I want a script that will run, and update my virtual machine's LAN settings (proxy server and port), and also re-configure the Firefox User Agent. I want a script that will run,
Attributes having a one value for a particular entity. For instance, Age is a single valued attribute of a student entity. Attributes that have more than single values
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