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In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
Define the Wait for graph Ans: The wait-for-graph is a directed graph and consist of nodes and directed arcs; the nodes of the graph are active transactions. An arc of the grap
State the data flow diagram of functional model Any action initiated by transition in the state diagram can be extended into an entire data flow diagram in functional model. Th
sir, could anybody help me in getting complete information about the mentioned topic
The insertion of a tuple in the aim of reference does not cause any destruction. Though, insertion of a tuple in the relation in which, we has the foreign key, for instance, in ASS
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
Sequences Sequences: Automatically produce unique numbers Are sharable Are typically used to make a primary key value Replace application code Speed up t
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
explain exhausitively the problems associated with er diagrams with ellustrations
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