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Define query optimization.
Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Consider the subsequent relation schemes: Project (Project#, Project_name, chief_architect) Employee (Emp#, Empname) Assigned_To (Project#, Emp#) Give expression i
Whst is logical schema ? Logical schema is the entire database.
About Attribute inheritance
What are composite attributes? Composite attributes can be separated in to sub parts.
MySQL statements for extending the database to incorporate new facilities Deliverables for submission You must submit the following deliverables in the Assignment Dropbox in
(a) Why did SAP introduce the extended star schema?
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
Ask questioYou are the database administrator in a university. You have been tasked to come up with a new database for the University. Using the stages in Database Life Cycle come
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
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