What are different types of Triggers in SQL Server?

In SQL Server, triggers are used to execute a specific set of instructions or actions when a certain event occurs, such as a table being updated, deleted, or inserted. There are different types of triggers in SQL Server, which are:

DML Triggers: These triggers are fired automatically in response to Data Manipulation Language (DML) events such as insert, update, and delete operations on tables. DML triggers can be further divided into three types based on the events they are associated with: Insert, Update, and Delete triggers.
DDL Triggers: These triggers are fired in response to Data Definition Language (DDL) events such as CREATE, ALTER, and DROP statements on objects like tables, views, stored procedures, and triggers.
Logon Triggers: These triggers are fired when a user session is established with an instance of SQL Server. Logon triggers are used to audit and control server-level access and activity.
CLR Triggers: These triggers are used to execute user-defined code written in .NET languages like C# and VB.NET.
INSTEAD OF Triggers: These triggers are used to replace the default action of a DML operation with a custom set of actions specified in the trigger. INSTEAD OF triggers are typically used for views and tables with complex relationships.

Understanding these different types of triggers can help you design and implement more efficient and effective SQL Server databases.

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