Introduction to SQL Triggers. Summary in this tutorial, we will  give you a brief overview of SQL trigger, its advantages and disadvantages. Learn about TSQL code functions, such as stored procedures, parameters, triggers and more, that allow for the manipulation of data in this book excerpt. Ive got this database trigger CREATE TRIGGER setDescToUpper ON partnumbers AFTER INSERT,UPDATE AS DECLARE PnumPkid int, PDesc nvarchar128 SET PnumPkid. SSMS July 2016 hotfix update. Generally available Version number 13. Bug fix in SSMS to enable missing rightclick menu items. Linked customer bug requests. A SQL trigger is a set of  SQL statements stored in the database catalog. A SQL trigger is executed or fired whenever an event associated with a table occurs e. Triggers-in-SQL-Server-4.png' alt='Sql Trigger After Update Vs For Update Of' title='Sql Trigger After Update Vs For Update Of' />I need example of SQL Server Update Trigger, Get fields before and after updated to execute sql statments in another table. U2 Live From Paris 1987 Download Adobe. The 1 SQL Server community and education site, with articles, news, forums, scripts and FAQs. A SQL trigger is a set of SQL statements stored in the database catalog. A SQL trigger is executed whenever an event associated with a table occurs e. Read this tip to learn how to create a simple SQL Server trigger to track inserts and updates for a table. Trace flags are special switches that, when you flip them, enable different behaviors in your SQL Server. Back in the SQL Server 20002005 days, these were superrare. A SQL trigger is a special type of stored procedure. It is special because it is not called directly like a stored procedure. B25329_01/doc/appdev.102/b25108/img/xe_view_triggers.gif' alt='Sql Trigger After Update Vs For Update Of' title='Sql Trigger After Update Vs For Update Of' />The main difference between a trigger and a stored procedure is that a trigger is called automatically when a data modification event is made against a table whereas a stored procedure must be called explicitly. It is important to understand SQL triggers advantages and disadvantages so that you can use it appropriately. In the following sections, we will discuss the advantages and disadvantages of using SQL triggers. Advantages of using SQL triggers. SQL triggers provide an alternative way to check the integrity of data. SQL triggers can catch errors in business logic in the database layer. SQL triggers provide an alternative way to run scheduled tasks. By using SQL triggers, you dont have to wait to run the scheduled tasks because the triggers are invoked  automatically before or after a change  is made to the data in the tables. SQL triggers are very useful to audit the changes of data in tables. Disadvantages of using SQL triggers. SQL triggers only can provide an extended validation and they cannot replace all the validations. Some simple validations have to be done in the application layer. For example, you can validate users inputs in the client side by using Java. Script or in the server side using server side scripting languages such as JSP, PHP, ASP. NET, Perl. SQL triggers are invoked and executed invisible from the client applications, therefore, it is difficult to figure out what happen in the database layer. SQL triggers may increase the overhead of the database server. Triggers or stored procedures It is recommended that if you have no way to get the work done with stored procedure, think about SQL trigger. In the next tutorials, we will show how triggers work in My. SQL and how to create triggers for your databases.