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Security: In a centralised system, access to the data can be simply controlled. Though, in a distributed DBMS not only does access to replicated data have to be controlled in many locations, but also the network required to be secured. Networks over a period have become more secure, still there is a long way to go.
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
Why older data models are being replaced by new data modelling 100 words accepted#
What is a value? A data value is used for identity. This form of identity is used in relational systems.eg: The primary key value of a tuple recognize the tuple.
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
Define Database layer? The database layer defines the data formats used in the database.
A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE
One-way Associations When an association is traversed only in the one direction, then it is implemented as a pointer i.e.an attribute which contains an object reference. If mu
Ways for Selecting Data Structure Algorithms operate on data structure. Therefore, selection of the best algorithm means selecting the best data structure from whole bunch. Th
Attributes and its types explain?
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
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