2] Update Java If Java is already installed on your computer, you will have to make sure that it is updated to the latest version. If it is not updated, SQL Developer and JDK will be incompatible ...

Prior to the release of SQL Developer 1.0, which was formerly known as Project Raptor, Oracle didn’t have its own visual database development tool—only the character-based SQL Plus.

2] Download the Oracle SQL Developer Now, we need to download the Oracle SQL Developer installation media and run it to install the utility. To do so, you need to go to developer.oracle.com.