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A relationship set is a set of relationships of the similar type. For example, let consider the relationship among two entities sets course and student. Collection of all the in
What do you mean by atomicity and aggregation? Atomicity : Either all actions are carried out or none are. Users should not have to worry about the effect of incomplete trans
how oracle can be used
what is completeness constrent?
This assignment concerns the Research database. The database ER model is shown above, where attributes are omitted for clarity. The relational model for the database is: Departm
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
What is Disadvantages Of DBMS ? 1. Cost of Software and Hardware and Migration - A important disadvantage of the DBMS system is cost. 2. Reduced Response and Throughpu
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
What benefits can a company gain by managing its own information infrastructure and servicea
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
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