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Define the Two Phase Locking Protocol This is a protocol that is used to make sure serializability of transactions. This protocol needs that every transaction issue lock and u
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
In an organization several projects are undertaken. Each project can employ one or more employees. Each employee can work on one or more projects. Each project is undertaken on the
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
brief history,definition,current trends and future trends if any of data fragmentation
what is physical data structure
Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chass
Limitations of File Based System The file-based system has some limitations. The limitations are listed as follows: Isolation and separation of data: When the data is
(a) Data warehouse can be defined as "a subject-oriented, integrated, time-variant, non-volatile collection of data" in support of management's decision making process. Explain ea
Define Database layer? The database layer defines the data formats used in the database.
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