MySQL or Oracle? [closed]

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As I know these two databases are the most popular and the best, but which one is the best? And what are the benefits to use one or other? Currently I use MySQL and I don't really have any experiences with Oracle, but I want to know what's 开发者_运维百科the best choice and why?

I mean how fast they are, what kind of features they have, how easy is to use them with php, and so one, you know better :)

Some real examples:

1. 1.000.000 users come to my website, they visit 100 pages every day and each page is 1mb's , now which on is the faster?

2. I run a query on the database to search for 10.000 users, now which one is faster?

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See, when you add in "how easy to use with PHP," I'm going to have to go with MySQL. At least, you will find the most resources online to help you on your journey.