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What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
What is Data Storage? The storage structures and access methods used by database system are specified by a set of explanation in a special type of DDL called data storage-defin
Explain the challenges before an E-business management.
define anomalies and different types of anomalies with example
Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Cyber Transit Ltd keeps up-to-date information on the processing and current position of each dispatched item. Dispatched items are the main concern of the Cyber Transit product tr
i need help with creating database system for a library
1. Determine the set of minimal functional dependencies for the following data. The local bakery, Happy Cakes, needs your help designing a database that will support a kiosk in
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
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