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What is a Built-in
A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in object oriented systems.
Probelm: a) In the context of OODBMS, define the following terms with appropriate examples. (i) Object class. (ii) Abstract class. (iii) Aggregation. (iv)
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
what do you understand by enhanced entity-relationship
What is 2NF? A relation schema R is in 2NF if it is in 1NF and every non-prime attribute A in R is fully functionally dependent on primary key.
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
What are the states of transaction? The states of transaction are:- a) Active b) Partially committed c) Failed d) Aborted e )Committed f) Terminated
what is attribute is attribute inheritance in dbms?
Explain weak and strong entity type ? Weak and Strong entity type: An entity set which does not have a primary key is referred to as a weak entity set. The existence of a wea
A student entity type has the following attributes,name..
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