Http://www.oracle.com/technetwork/cn/database/windows/downloads/index-101312-zhs.html
To connect ORACLE to VS, use ENTITY.
1. If you only need to use ENTITY, you can use ODAC of the next 11G version or later. Do not enter 10. The English is not good. At last, you will notice that EF starts at 11. It is best to download the latest version.
2. The ORACLE website is very spam. You need to register an ID, but it is estimated that you will not be able to register the ID if you do not go over the wall for a lifetime, and that is, I did not succeed when turning over the wall, or the card, first of all, the network speed is very slow, again, the network is too slow and AJAX abuse is added. A single character will be passed in. It is really vomiting blood. OK. It's hard to write it. After clicking CREATE, I waited for five or six minutes before the page was refreshed. There are other solutions (not to mention)
3. after installing ODAC, it is actually just a connection tool, PDO. NET may be spelled wrong. I always thought it was the CLIENT. I saw it today. No, but you don't have a CLIENT. Without a CLIENT, you don't have a NET MANAGER, and you won't be able to configure it, if you used the CLIENT Version 10, you do not need to upgrade it if you used EF all. You can enter the IP/Database Name format during connection. If you do not need EF, sometimes we recommend that you upgrade to 11.