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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: Association as a cache
what is binary relationship
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
Increased overheads on update : On the drawbacks side, it will need the system to ensure that all replicas of a relation are consistent. This shows that all the replicas of the rel
What is the difference between WHERE and HAVING clauses?. Predicates in the WHERE clause applies to every tuple while the predicate in the HAVING clause applies to groups.
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Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
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