Another perspective on the subject of BLOB vs. Links.

Links are easier to implement and may be an OK way to start. However, a file system is 
really a crude database, and I emphasize "crude". It's not very good at handling high 
transaction rates, access from multiple machines, or volume.

If your application grows quickly and before you know it you have hundreds of folders 
with thousands of files in each - your file system will slow to a crawl. All the 
performance, security, and consistancy features developers have worked so hard to put 
into database engines don't or barely exist in file systems.

So - if you go the link approach - you'll be fine for a while, but when you see the 
directory structure starting to buckle - it might be time to give BLOBs another look.


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