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What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Complete replication: It implies maintaining of a whole copy of the database at every site. Thus, the reliability & availability and performance for query response are maximized.
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to
WHAT IS DBMS
Decompose the table with the following description and functional dependencies into a set of equivalent tables normalized to 3NF or BCNF. This database stores records from a (ve
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.
the of super market system done in database
i need help with creating database system for a library
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