Suppose there are two relations r and s, such that the foreign key B of r references

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Suppose there are two relations r and s, such that the foreign key B of r references the primary key A of s. Describe how the trigger mechanism can be used to implement the on delete cascade option, when a tuple is deleted from s.

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Database System Concepts

ISBN: 978-0072554816

4th Edition

Authors: Henry F. Korth, S. Sudarshan

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Question Posted: Jan 28, 2011 05:54 AM

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Suppose there are two relations r and s, such that the foreign key B of r references

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We define triggers for each relation whose primaryk...View the full answer

Database System Concepts

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