How to configure the Mac edition of Oracle SQL Developer and connect to the Oracle Database on the VirtualBox

After a few days of using the Oracle database from a virtual machine, 

I was tired of using Linux from a remote desktop application because the virtual 

machine is installed on a windows computer and I'm using another MacBook for

my daily study. 

For this reason, I did some research on how to install SQL Developer directly on 

the Mac and then configure the database connection directly.

Here is my tutorial after my experiment, I hope it can help you to make your 

daily database learning easily.

Firstly, I set the Network Adapter to Bridged Adapter and chose the real

ethernet card of my windows computer.

Secondly, I clicked the Wired Setting menu on the right top of my Linux system(installed 

on the VirtualBox), then took notes of the IP address which should in the same network 

segment.

Then, Download and install  the oracle sql developer for Mac OS. Here is the 

link:https://www.oracle.com/database/sqldeveloper/technologies/download/ 

(Oracle will ask you to register and sign in before downloading, Don't worry, it's free.)

Next, Let's configure the database connection on Oracle SQL Developer. Here I click the 

green plus button not the top left of the Connections section.

Finally, I tapped the database username, password, hostname/ip, sid/service 

name, then click test, if the status shows success means you can explore your database on 

Mac OS. If there is a problem, you can check your database account, network depends on 

the status information.

Hope this record can be helpful for you. Please leave the message on the below if you have any question.