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Is there way to link trigger to two tables?
There are no way to link one trigger to two tables unless you create an updatable view which hides both tables map all application code to work with this view. But this solution only useful if you on the start of developing new application from scratch.
How does create trigger for update work in SQL Server?
For example, if CREATE TRIGGER FOR UPDATE is run for a table that already has an UPDATE trigger, an additional update trigger is created. In earlier versions of SQL Server, only one trigger for each INSERT, UPDATE, or DELETE data modification event is allowed for each table.
How are Transact-SQL statements used in a trigger?
The Transact-SQL statements in a trigger frequently include control-of-flow language. DML triggers use the deleted and inserted logical (conceptual) tables. They’re structurally similar to the table on which the trigger is defined, that is, the table on which the user action is tried.
Can you define a trigger instead of a DELETE statement?
At most, you can define one INSTEAD OF trigger per INSERT, UPDATE, or DELETE statement on a table or view. You can also define views on views where each view has its own INSTEAD OF trigger. You can’t define INSTEAD OF triggers on updatable views that use WITH CHECK OPTION.
Can you use a trigger on a view in SQL Server?
SQL Server triggers can be useful, but also tricky to use. Most people think about putting triggers on tables, but did you know that you could also create triggers on views? In this tip we will cover how this can be done as well as how to control what can be updated using a view and how to control with a trigger.
What is the trigger event in a view?
Since we are talking about triggers on views, the triggering event will be any DML statement using the view. There are two kinds of DML triggers the FOR (or AFTER) trigger and the INSTEAD OF trigger, but the only one you can use with views are INSTEAD OF triggers.
Can you use a trigger on a non updateable view?
Additionally, the columns being modified cannot be affected by GROUP BY, HAVING, or DISTINCT clauses. The view’s code must not use the TOP clause together with the WITH CHECK OPTION clause. The only way to make data changes on a non-updateable view is by using INSTEAD OF triggers. This way you can use procedural code to overcome the limitation.