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State the meaning of Object Representation The term object representation means "to represent object with the help of objects model symbols". Implementing objects is too simp
Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli
write-set(T): Each data items that are written by a transaction T
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
From SAD to OOAD (Structured Analysis and Design (SAD) to Object Oriented Analysis and Design (OOAD). We will find here how we can map various models in SAD to different model
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Question: (a) Discuss the difference between a composite key and a composite attribute. How would each be indicated in an E-R diagram? Support your answer with appropriate exam
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
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