Before update triggers in sql server 2008

Basically I have a table with say 10 records in there. When an update occurs on a record and I want the trigger to recognise this and place a flag of X in a column to mark it. The trigger then copies the record marked with X into another table. In the source table where the flag is marked X it will then update it with a GetDate function. Can someone advise what I'm doing stupidly wrong.

I want a before update function. Now we should consider to update all customers affected by the sql trigger event Insert, Update or Delete statement execution on sql table Sales. So the t-sql code inside the SQL Server trigger code will contain a similar sql code block to shown below:. Now, we can develop t-sql code to fetch the total sales amount to that customer or those customers affected by the latest SQL Server DML command.

Here is an sql code from SQL Server trigger example that will get sum of sales transaction amount. And now we are ready to join these t-sql code blocks to create a total solution.

To complete this sql trigger tutorial, let's populate Customers sql table with sample data using Insert statement.

You can now execute the below T-SQL Insert statement which will trigger sql update statement on Customers table on priority field of Customer 2.

I just want to hold the changes of the row. If the row has no change then I don't want to populate the History table. Thats the reason when an update command runs on a row I want to record the old values before the update command updates the row. What you want to do is compare the inserted and deleted tables. If there is no change, then no insert. If there is a difference, then insert something. To do that you will have to compare inserted and deleted.

This will be the new and old values. If there are a lot of columns this may end up being more hassle than it is worth. I have always made the argument that tracking the update even though no values were changed actually provides some additional info. You know that somebody opened an edit screen and hit save without making any changes. May not be very helpful in the long run but it takes a lot less code and provides a more complete history.

I used the inserted and deleted but the inserted row always has the new values rather than the old value. Not sure what I am doing wrong. It can't be this difficult. Active Oldest Votes. That's what I thought. I've been waiting and watching long for these, so I was quite surprised to hear this. I thought they were probably Charles Bretana. For example, if a table has a new field added, or one removed, now you need to update the instead of triggers to handle the new or missing field.

Sign up or log in Sign up using Google. Sign up using Facebook.