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Can we create 2 triggers on a table?
SQL Server allows multiple triggers on the table for the same event and there is no defined order of execution of these triggers. There can be only one first or last trigger for each statement on a table. Below is the sample syntax for setting the order of trigger to first for the INSERT statement.
How many different triggers can we create on a table?
There are 12 types of triggers can exist in a table in Oracle: 3 before statement, 3 after statement, 3 before each row and 3 after each row. On a single table you can define as many triggers as you need.
What is the maximum depth level for nested triggers?
16 levels
Triggers can nest to a depth of 16 levels.
What is the maximum number of trigger?
What is the maximum number of Triggers can be applied in a table ? Explanation: We can apply at max of 12 triggers in a table.
How to create trigger that runs on two tables?
CREATE OR REPLACE TRIGGER checkDuration BEFORE INSERT OR UPDATE ON (course c JOIN offering o ON c.courseId = o.courseId) FOR EACH ROW BEGIN IF ( (to_char (:new.startDate, ‘fmMONTH’) = ‘DECEMBER’) AND duration = 5) THEN raise_application_error (-20001, ‘Courses of five days duration cannot be run in December’); END IF; END;
When do you need more than one trigger?
A trigger (insert, Update, and/or Delete) belongs to a particular table. If you need a trigger on two tables (or many tables) you will need two triggers (or many triggers). It should be written as two different TRIGGER only. unless you make into a view combining both the tables and create a trigger on it to do manipulations on both the base tables
Do you need more than one trigger in SQL Server?
A trigger (insert, Update, and/or Delete) belongs to a particular table. If you need a trigger on two tables (or many tables) you will need two triggers (or many triggers). think what if SQL Server allows you to create one trigger on multiple table then SQL Server needs to maintain multiple (inserted and deleted)special Tables
When does a trigger fire in DML table?
DML events are INSERT, UPDATE, or DELETE statements on a table or view. These triggers fire when any valid event is fired, regardless of whether or not any table rows are affected. A trigger (insert, Update, and/or Delete) belongs to a particular table.