Build SQL Server CLR Triggers

In this article we look at how to create SQL Server triggers using Common Runtime Language (CLR) along with examples and a step-by-step guide.

SQL Server triggers: The good and the scary

SQL Server triggers are another tool in your DBA or Dev toolbox. Edward Pollack explains what can go wrong with triggers and how to correct those issues.

Generic trigger for maintaining the Audit Log

This trigger will work even if you don't have the primary key on any table. Mechanism to configure the primary key in config table has been provided. This can be very helpful to solve the system audit requirements without much efforts.

Disclaimer : Audit Log trigger has performance overhead. It’s meant for table which is not frequently updated, deleted or inserted. Please take precaution when creating the trigger on the table having too many columns.

SQL and T-SQL for Beginners in 229 minutes

The the basics of SQL and T-SQL in this short course of videos that explain some of the concepts.

SQL Blog by Rahul Sahay

SQL Server Referential Integrity Across Databases Using Triggers

In this tip we cover how you can implement SQL Server cross database referential integrity using triggers.

Learning about DML Triggers

Triggers can be confusing and complex for many developers new to SQL. Steve Jones gives a few ideas for learning more about this construct as well as practicing writing them.

Script triggers from any database in SQL Server

In this tip Aaron Bertrand looks at how to generate scripts for triggers using simple T-SQL statements. This tip shows how to easily build scripts for disabling, enabling, dropping and creating.

Finding Triggers

Triggers: Threat or Menace?

Triggers are generally over-used in SQL Server. They are only rarely necessary, can cause performance issues, and are tricky to maintain If you use them, it is best to keep them simple, and have only one operation per trigger. Joe Celko describes a feature of SQL that 'gets complicated fast'.