Jamie King of Neumont University showing an example of allowing multiple NULL values in a single column using a trigger.
On this page of the site you can watch the video online SQL - Allowing Duplicate NULLs by Using a Trigger with a duration of online in good quality, which was uploaded by the user Jamie King 12 June 2012, share the link with friends and acquaintances, this video has already been watched 1,735 times on youtube and it was liked by 5 viewers. Enjoy your viewing!