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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
difference between MIS and DSS
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
I want to buy this but I want to see a couple sample questions first. http://www.expertsmind.com/library/what-happens-to-rms-error-for-the-training-data-set-51564843.aspx
What are the different integrity constraints in RDBMS? The various integrity constraints in RDBMS are as: Primary Key: primary key is a grouping of one or more attributes
Define functional and multivalued dependencies. Ans: A functional dependency is a assets of the semantics of the attributes in a relation. The semantics point out how at
1) Information about a bank is about customers and their account. Customer has a name, address which consists of house number, area and city, and one or more phone numbers. Ac
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
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