Create a new connection from the context menu by right-clicking on the 'Connections'.Refer the following link for general process : Test the connection by using the credentials while installing Oracle, eg : UserName = 'system' & PassWord=Administration password created while installation.Provide the required information : Data Source Name, TSN service Name -> Select the 'ORCL' from the dropdown.Select the “Oracle in Oracle ODBC – instantclient-basic-windows.圆4, Finish the process and select OK.Open ODBC Data source from the start menu.Unzip the files and copy the content from this 'instantclient-odbc-windows.圆4-' to 'instantclient-basic-windows.圆4-' folder.Download the instantclient-basic-windows.圆4-.zip and instantclient-odbc-windows.圆4-.zip.Install SQL developer: Run the installer file. Double click on the path and cross check wheather this added entry is at the top of the environment varialbles list, if not push it to the top.Set the path to the folder where the ‘tnsnames.ora’ file is located.Add a new variable at the System variables.Open 'Edit the System Environment Variables'.Editing the System environment variable: Create the Admin password according to the password conventions.Either you can create a new windows user or use the existing window user.Installation option – “Create and configure a database'.Uncheck the checkbox for notification update.Start the installation, provide the email id for the notification.Extract the downloaded subfolders contained in the Oracle 12c download in a SINGLE folder.Install the downloaded files for Oracle 12c. How to setup Oracle using SQL Developer & Oracle ODBC driver. This article shows how to setup Oracle database using SQL Developer & Oracle ODBC driver.

Oracle 12c odbc driver