Low Credit; GO -- This trigger prevents a row from being inserted in the Purchasing. Purchase Order Header AFTER INSERT AS IF EXISTS (SELECT * FROM Purchasing. Employee Names (Business Entity ID, LName, FName) AS SELECT e. The same issues apply to simple expressions in a view if they reference a computed column that has a complex expression.Purchase Order Header table -- when the credit rating of the specified vendor is set to 5 (below average). An INSTEAD OF trigger on the view must handle these types of expressions.Now that we understand the basics, let's take a look at how we can design the user audit table to track user activity.
These system-level triggers included database startup triggers, DDL triggers, and end-user login/logoff triggers.Note that this example does not allow for multirow data modifications. -- The AFTER INSERT trigger is fired and the INSERT transaction is rolled back. Purchase Order Header (Revision Number, Status, Employee ID, Vendor ID, Ship Method ID, Order Date, Ship Date, Sub Total, Tax Amt, Freight) VALUES ( 2 ,3 ,261 ,1652 ,4 , GETDATE() , GETDATE() ,44594.55 ,3567.564 ,1114.8638 ); GO The inserted and deleted tables passed to INSTEAD OF triggers defined on tables follow the same rules as the inserted and deleted tables passed to AFTER triggers. The inserted and deleted tables passed to an INSTEAD OF trigger defined on the view also have an int column named .For more information, see Create DML Triggers to Handle Multiple Rows of Data. The format of the inserted and deleted tables is the same as the format of the table on which the INSTEAD OF trigger is defined. The select list of a view can also contain expressions that do not directly map to a single base-table column.orm some validations) whenever the original table (on which the trigger is created) is selected or inserted, updated or deleted. A trigger is used to ensure that certain jobs are automatically done when a predefined event occurs.