This is easier than changing the GlassFish default port. There are many sets of instructions on the Internet for changing the Oracle Database XE default port, including one in Oracle forums. Enter the username. For the purpose of our tutorial, enter system the default database administrator account and password that you used during database installation.
The new connection will appear under the Databases node in the Services window. You can expand it and start browsing the database object's structure. Change the display name for the connection node: choose Properties from the node's popup menu and click the ellipsis button for the Display Name property. Although the steps above demonstrate the case of connecting to a local database instance, the steps for connecting to a remote database are the same.
The only difference is that instead of specifying localhost as the hostname, enter the IP address or hostname of the remote machine where Oracle Database is installed. A common way of interacting with databases is running SQL commands in an SQL editor or by using database management interfaces. For example, Oracle Database XE has a browser-based interface through which you can administer the database, manage database objects, and manipulate data. Although you can perform most of the database-related tasks through the Oracle Database management interface, in this tutorial we demonstrate how you can make use of the SQL Editor in the NetBeans IDE to perform some of these tasks.
The following exercises demonstrate how to create a new user, quickly recreate a table, and copy the table data. Let's create a new database user account to manipulate tables and data in the database.
To create a new user, you must be logged in under a database administrator account, in our case, the default system account created during database installation. This command creates a new user jim with the password mypassword. The default tablespace is users and the allocated space is unlimited.
In real life, a database administrator creates custom roles and fine tunes privileges for each role. For more information about roles and privileges, see Oracle Database Security Guide.
A tablespace is a logical database storage unit of any Oracle database. In fact, all of the database's data is stored in tablespaces. You create tables within allocated tablespaces. If a default tablespace is not explicitly assigned to a user, the system tablespace is used by default it is better to avoid this situation.
In this exercise you will recreate a table by using the structure of another table. In this example, you want the user jim to create a copy of the Departments table in his schema by recreating the table from the hr database. Before you create the table you will need to disconnect from the server and log in as user jim.
When you created the user jim , the Select privilege was limited to the Departments table. If you want to copy the data from the original Departments table to the new table, you can enter the data manually in the table editor or run an SQL script on the new table to populate the table. The following script will populate the first row of the new table with the data from the original table.
You can retrieve the SQL script for populating the table from the original table by performing the following steps. By running SQL queries, you can add, modify and delete data maintained in database structures. DbSchema Tool already includes an Oracle driver, which is automatically downloaded when you connect to Oracle. The URL is a string text with a specific format, containing information about the host where the database is running, the port, username, database name, etc.
The format is specific to each driver. Any wrong character in the URL may make the database connectivity fail, therefore we recommend installing DbSchema and try to get connected.
There are two tabs you can use to connect. Free Download DbSchema When the download finished please follow this steps:. This will be the name of this specific connection to the database. Each database can have multiple connection and authentication methods. Switch to a different method from the dropdown menu. You can use the first tab to connect, and then see the created URL in the second tab.
Connectivity Troubleshooting If you get problems connecting to the database, please remember : Press the ping button in the connection dialog to make sure the host and port are reachable.
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