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Which database level is closest to the users?
External database level is closest to the users.
What are advantages of object models? Object models are efficient for communicating with the application experts and reaching a consensus about the significant aspects of the p
What are the ways in which the variable-length records arise in database systems? Storage of many record types in a file. Record types that permit variable lengths for one o
Define Deadlock recovery measures To recover from deadlock, the cycle in the wait-for-graph should be broken. The common technique of doing this is to rollbac
Database systems have many opposite efforts ?
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
#question.ERD of any car
what is multivalued dependency
Control as Concurrent Tasks The expression control as simultaneous task means applying control for those events of object which can happen simultaneously. An object can be imp
Creating a view: A query can be embedded within the CREATE VIEW STATEMENT A query can have complex select statements containing join, groups and sub- queries A quer
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
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