Database design is often made by programmers. This is common mistake . Only a few developers know internal db structure and mechanisms. Let's doing a tiny test :
1) Describe me what's an hash table?
2) Give two link of indexes and when it should be used?
3) What about isolation transaction levels?
OK, OK, I stop here.
Although db design should be done by specialists, it's never to late to improve our knowledges. Thanks to my friend Marco, I put here a link to a website which published db models. From know, before designing your model, don't forget to check if a similar one already exists.
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