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What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
Atomicity: It describes a transaction to be a one unit of processing. We can also say either a transaction will be finished completely or not at all. In the transaction example 1
Benefits and Limitations od Data Models?
What is the purpose of storage manager? The storage manager is responsible for the following a) Interaction with the file manager b) Translation of DML commands in to low
Deadlock Prevention One of the easiest approaches for avoiding a deadlock would be to obtain all the locks at the begin of the transaction. Though, this approach restricts conc
Extend your CREATE TABLE statement from problem 3 with referential integrity constraints. Updates and deletes on related rows are restricted. 6. From examination of the sample data
difference between MIS and DSS
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
Primary index A primary index is a file that has a sorted series of records having two columns: a block address for that key field in the data file; and the ordering key field.
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