Sql server trigger if updating
To see how it works, run the following statements to create a table and a trigger. Table1(ID INT) GO -- Creating a trigger CREATE TRIGGER TR_Test ON dbo.USE Adventure Works; GO -- creating the table in Adventure Works database IF OBJECT_ID('dbo. Table1 FOR INSERT, UPDATE, DELETE AS IF OBJECT_ID('tempdb..#Disable') IS NOT NULL RETURN PRINT 'Trigger Executed' -- Actual code goes here -- For simplicity, I did not include any code GO You will notice that the INSERT statement did not fire the trigger and since the temporary table that was created is local to the session the trigger cannot be bypassed by any of the other sessions.In OSX 10.7 and earlier, you could start and stop the Apache Web Server in Control Panel, by choosing "Sharing" and then unchecking the "Web Sharing" checkbox.As of 10.8 this option is no longer in the control panel. I am looking for a sample code for triggering an event which can print the contents of a Table A to a printer and then also load the rows printed into a archive table say Table B and delete the rows in the table A when both the functions are complete. Example : There is a scan data being loaded to Table A. is designed to help users understand the most common language for database wrangling, SQL.
Even though there are different ways to do it, the main logic lies in passing some kind of signal to the trigger that you do not want the trigger to fire.
This works fine, but having to use the Tempdb database to create a temp table and then drop the temp table causes overhead which can be avoided.
Using Context_Info( ) Another way of accomplishing the task is to use the Context Info of the session.
Context Info is a variable which belongs to the session. Table1(ID INT) GO -- Creating a trigger CREATE TRIGGER TR_Test ON dbo.
Its value can be changed using SET Context_Info The trigger will mostly look like this: USE Adventure Works; GO -- creating the table in Adventure Works database IF OBJECT_ID('dbo. Table1 FOR INSERT, UPDATE, DELETE AS DECLARE @Cinfo VARBINARY(128) SELECT @Cinfo = Context_Info() IF @Cinfo = 0x55555 RETURN PRINT 'Trigger Executed' -- Actual code goes here -- For simplicity, I did not include any code GO Before issuing the INSERT statement, the context info is set to a value.
Using a Temp Table The simplest way to accomplish this is to create a temporary table before you execute the statement that would fire the trigger.