SQL Query Where Column = '' returning Emoji characters

Question

Ok so I have a table with three columns:

Id, Key, Value

I would like to delete all rows where Value is empty (\'\'

Answer 1

It's not an answer to your "why", but in terms of your overall goal, perhaps you should alter your strategy for searching for empty values:

Select * from [Imaging.ImageTag] where LEN([Value]) = 0

As per the comments (thanks Martin Smith for providing some copy/pastable emoji):

SELECT CASE WHEN N'' = N'