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Describe Participation Constraints?
Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another entity through the relationship type. This constraint specifies the minimum number of relationship examples in which each entity can participate in. It is sometimes known as the minimum cardinality constraint. There are two kinds of participation constraints - total and partial.
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
explain the mapping constraints
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wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
Define lock? Lock is the most common used to execute the requirement is to permit a transaction to access a data item only if it is currently holding a lock on that item.
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external view of DBMS in healthcare department?
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