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What is Nested Trigger?
A trigger can also having INSERT, UPDATE and DELETE logic within itself, so when the trigger is fired because of data modification it can also cause another data modification, thereby firing another trigger. A trigger that having data modification logic within itself is called a nested trigger.
write an SQL statement to create the database in MYSQL server
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What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
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