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Oracle interview Question : what is trigger in oracle

Oracle interview Question : what is trigger in oracle Description: A Trigger is a special PLSQL code, that will be automatically invoked when a specific event occurs in the database. The even can be DML event, DDL event or SYSTEM event. What are the types of triggers? DML Trigger - This trigger will get fired for DML events like INSERT,UPDATE and DELETE DDL trigger - This trigger will get fired for DDL events like CREATE, ALTER, DROP, TRUNCATE etc., System trigger - This trigger will get fired for system events like LOGON, LOGOFF, STARTUP, SHUTDOWN etc Instead of trigger - This trigger is created on view to redirect the DML operations to undelying base tables compound trigger - This is a single trigger having blocks for all the DML timing events. List of all the SQL and PLSQL interview questions @ https://easy-learning-tech.blogspot.c...