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How is concurrency identified?
Concurrency in objects can be identified by the way they alter their state. Current objects can change their state independently. Aggregation implies concurrency in system.
Describe the shadow paging technique.
What is Information System?
Nested Queries Let us see some more complex queries in this section. Sub-queries: Some of the basic concerns of sub-queries are: A sub-query is a SELECT statemen
i want to database for online assignment submission system
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
How many physical thing?
the of super market system done in database
what would go in order patient#, patient name, patien address, surgeon#, surgeon name, surgery date, surgery type, drug admin
Draw an ER diagram that represents the information described below. Show all entity sets, relationship sets, primary keys, and the mapping cardinality of the relationship sets.
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