How are triggers implemented inside a SQL database engine? I am not referring to the SQL language-level trigger definitions but rather their underlying implementations inside Oracle, SQL Server, MySQL, etc. How can the database engine scalably manage hundreds or thousands of triggers? Do they use a publish-subscribe model like with an observer/listener pattern? Any pointers to relevant literature on the subject would also be appreciated.How are triggers implemented inside a SQL datab
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如何在SQL数据库引擎中实现数据库触发器？
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