1) Download MySQL Connector/J 3.0.11
2) Select Tools -> Default Project Properties in JDeveloper
3) Select Libraries in the tree view. Click Add Library in the right plane.
4) Click New.. 5) Library Name: MySql
Location: User
Click Add Entry..
The Select Path Entry dialog is displayed.
6) Click OK
7)Click OK
8)Select the Connections tab and right-click on the Database node to select New Database Connection.
9) Click Next
10) Connection Name: MySql
Connection Type: Third Party JDBC Driver
Click Next.
11) In the Authentication window specify Username as root (Password is not required to be specified for a root user by default), and click on Next.
12) Click New..
In the Driver Class field enter
com.mysql.jdbc.Driver
. Click Browse..In the Library, select the MySql library that you defined earlier.
Click OK
Click OK
13) Enter the URL:
jdbc:mysql://localhost/test?
Click Next
14) Click Test Connection