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What is storage manager?
A storage manager is a program module that gives the interface among the low level data keeps in a database and the application programs and queries submitted to the system.
client server architeutre
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
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Explain the Deferred Update The deferred update methods do not physically update the database on disk till after a transaction reaches its commit point; after that the updates
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
Problem: A DBMS built for Online Transaction Processing (OLTP) is usually regarded as unsuitable for data warehousing. Each system is designed with a different set of requireme
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
External failure : A failure can also result because of an external cause, such as earthquakes, fire, floods, etc. The database must be duly backed up to avoid troubles occurring d
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole t
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