I have Oracle SQL Developer Installed, Now What If youre here because you downloaded a copy of Oracle SQL Developer and now you need help connecting to a database, then youre in the right place. Ill show you what you need to get up and going so you can finish your homework, teach yourself Oracle database, or get ready for that job interview. Youll need about 3. Oracle Oracle Database come with SQL Developer but SQL Developer doesnt include a database. If you install Oracle database, it includes a copy of SQL Developer. If youre running that copy of SQL Developer, please take a second to upgrade now, as it is WAY out of date. But Im here to talk to the folks that have downloaded SQL Developer and want to know what to do next. Youve got it running. You see this Connection dialog, andWhere am I connecting to, and who as You NEED a database. Installing SQL Developer does not give you a database. So youre going to need to install Oracle and create a database, or connect to a database that is already up and running somewhere. Basically you need to know the following where is this database, whats it called, and what port is the listener running on The Default Connection properties in SQL Developer. These default settings CAN work, but ONLY if you have installed Oracle Database Express Edition XE. Localhost is a network alias for 1. Oracle SQL Developer is a free graphical tool that enhances productivity and simplifies database development tasks. Using SQL Developer, users can browse database. Installing Oracle Database and Creating a Database. This chapter describes how to install Oracle Database software and create a database. If you are using an. Oracle 12c Database New Features Pluggable Database Video 1 1. Pluggable Database Oracle 12c introduces a new feature called Pluggable Database. Database upgrade from Oracle 10. Using Manual upgrade Fix Oracle XML Database status INVALID in dbaregistry during Upgrade. IP address that maps to the local machine, or the machine you are reading this blog post on. The listener is a service that runs on the server and handles connections for the databases on that machine. You can run a database without a listener and you can run a listener without a database, but you cant connect to a database on a different server unless both that database and listener are up and running. Each listener listens on one or more ports, you need to know the port number for each connection. The default port is 1. I know all of this sounds very complicated. Oracle is a very sophisticated piece of software. Its not analogous to downloading a mobile phone app and and using it 1. Its not like installing OfficeAccess either it requires services, environment setup, kernel tweaks, etc. However. Normally an administrator will setup and install Oracle, create the database, and configure the listener for everyone else to use. Theyll often also setup the connection details for everyone via a TNSNAMES. ORA file. This file contains a list of database connection details for folks to browse kind of like an Oracle database phoneboook. If someone has given you a TNSNAMES. ORA file, or setup your machine to have access to a TNSNAMES file, then you can just switch to the TNS connection type, and use the dropdown to select the database you want to connect to. Then you dont have to worry about the server names, database names, and the port numbers. ORCL that sounds promisingORCL is the default SID when creating a new database with the Database Creation Assistant DBCA. Its just me, and I need help No administrator, no database, no nothing. Access 2010 Linked Table Manager Not Installed. What do you do You have a few options Buy a copy of Oracle and download, install, and create a database. Download and install XE FREEDownload, import, and run our Developer Days Hands on Lab FREEIf youre a student or anyone else with little to no experience with Oracle, then I recommend the third option. Oracle Technology Network Developer Day Hands on Database Application Development Lab. The OTN lab runs on a A Virtual Box image which contains 1. R2 Enterprise Edition copy of Oraclea database and listener running for you to connect tolots of demo data for you to play with. SQL Developer installed and ready to connect. Some browser based labs you can step through to learn Oracle. You download the image, you download and install Virtual Box also FREE, then you IMPORT the image you previously downloaded. You then Start the image. Encarta 2009 Full Version Exe more. It will boot a copy of Oracle Linux, start your database, and all that jazz. You can then start up and run SQL Developer inside the image OR you can connect to the database running on the image using the copy of SQL Developer you installed on your host machine. Setup Port Forwarding to Make It Easy to Connect From Your Host. When you start the image, it will be assigned an IP address. How To Install Sample Schemas In Oracle 11G' title='How To Install Sample Schemas In Oracle 11G' />Depending on what network adapter you select in the image preferences, you may get something that can get out to the internet from your image, something your host machine can see and connect to, or something that kind of just lives out there in a vacuum. You want to avoid the vacuum option unless youre OK with running SQL Developer inside the Linux image. Open the Virtual Box image properties and go to the Networking options. How To Install Sample Schemas In Oracle 11G' title='How To Install Sample Schemas In Oracle 11G' />Were going to setup port forwarding. This will tell your machine that anything that happens on port 1. Oracle Listener port, should just go to the images port 1. So I can connect to localhost and it will magically get transferred to the image that is running. Oracle Virtual Box Port Forwarding 1. Now You Just Need a Username and Password. The default passwords on this image are all oracle so you can connect as SYS, HR, or whatever just use oracle as the password. The Linux passowrds are all oracle too, so you can login as root or as oracle in the Linux desktop. Connect Connect as HR to your Oracle database running on the OTN Developer Days Virtual Box image. If youre connecting to someone elses database, you need to ask the person that manages that environment to create for you an account. Dont try to guess or figure out what the username and password is. Introduce yourself, explain your situation, and ask kindly for access. This is your first test can you connect I know its hard to get started with Oracle. There are however many things we offer to make this easier. Youll need to do a bit of RTM first though. Once you know whats required, you will be much more likely to succeed. Of course, if you need help, you know where to find me.