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Question: In order to store logos in a database and display them dynamically in ms-reporting service, I need to base64 encode the image. It doesn’t work with binary saved images, due to MS limitations…
Now my question: Which datatype do I use? Varchar, nvarchar or text?
I guess varchar would be good enough, since base64 encoded, but images might be larger than 4000 characters…
Varchar(max) supports up to 2GB, and since the data is already base64 encoded, unicode storage won’t be required.
http://www.sqlskills.com/BLOGS/PAUL/post/Importance-of-choosing-the-right-LOB-storage-technique.aspx