5 Installing Oracle Database XE

This section covers the following topics:

5.1 Running the Installer

Most users will install Oracle Database XE by downloading the installation package, extracting the files, double-clicking setup.exe, and answering graphical user interface prompts as needed.


  • Before attempting to install Oracle Database XE 21c, uninstall any existing Oracle Database XE or database with the SID XE from the target system.
  • The installer will use SID XE for database creation. Any SID other than SID XE will not be allowed.
  • See Migrating Data and Applications if you need to move data from Oracle Database Express Edition to Oracle Database Enterprise Edition 21c.
  • See Upgrading Oracle Database XE 18c PDB to XE 21c

To install Oracle Database XE:

  1. Log on to Windows with Administrator privileges.

    You must be a direct member of the Administrators group on Windows to install Oracle Database XE. If you are logged in as a domain user, ensure that you are connected to the network. Otherwise, you may receive a prerequisite check failure for Administrator privileges during the install.

  2. If the ORACLE_HOME or TNS_ADMIN environment variables have been set, then delete them.

  3. Download the Microsoft Windows version of Oracle Database XE.

  4. Extract the downloaded zip file to a temporary location. Locate setup.exe and double click it. The installation of the prerequisites will take place, if applicable, to the environment.

    This is the welcome screen of the installer.
  5. In the Welcome to the InstallShield Wizard for Oracle Database 21c Express Edition window, click Next.

  6. In the License Agreement window, read the text of the agreement and if you agree to its terms, select I accept the terms in the license agreement and then click Next. If you do not accept the terms, cancel the installation and delete the Oracle Database 21c Express Edition software from the computer.

  7. The installer now performs a prerequisite check to ensure that:

    • the version and edition of Windows is supported

    • the environment variables ORACLE_HOME and TNS_ADMIN are not set

    • the installation user is a direct member of the Administrators group

    • there is no Oracle Database XE service already created

    If any of these checks fail, a Prerequisite Checks window will open notifying the user. In that case, cancel the installation, fix the problem, and retry the installation.

  8. In the Destination Folder window, either accept the default location or click Change to select a different installation directory. Do not select a directory that has spaces in its name. Then click Next.

    Click the change button to navigate and select a destination folder of your choice to install Oracle Database Express Edition.

  9. In the Oracle Database Information window, enter and confirm the single database password to use for the SYS, SYSTEM, and PDBADMIN database accounts. Then click Next.

    You can enter and confirm the single database password to use for the SYS, SYSTEM, and PDBADMIN database accounts in the Specify Database Passwords window.


    The same password will be used for these accounts.

    Oracle recommends that the password entered should be at least 12 characters in length, contain at least 1 uppercase character, 1 lower case character and 1 digit [0-9]. The password should conform to the Oracle recommended standards. See Oracle Database Security Guide for more information about guidelines for securing passwords.

  10. In the Summary window, review the installation settings, and if you are satisfied, click Install. Otherwise, click Back and modify the settings as necessary.

  11. When the installation is complete, the Oracle Database Installed Successfully window is displayed.

    Installation of Oracle Database Express Edition is complete.

    Make a note of the connection strings provided for multitentant container database and the pluggable database, as well as the EM Express URL. Click Finish to close the installer.

Configuration, Database Files, and Logs Location

The following table lists important locations such as Oracle Base, Oracle Home, Database files, and logs. <INSTALL_DIR> is the installation directory chosen by you during the time of install. The default installation directory is C:\app\<username>\product\21.0.0, where <username> is the name of the Windows user performing the installation.

Table 5-1 Configuration, Database Files and Logs Location

File Name and Location Purpose


Oracle Base

This is the root of the Oracle Database XE directory tree.


Oracle Home

This home is where the Oracle Database XE is installed. It contains the directories of the Oracle Database XE executables and network files.


Database files


Diagnostic logs

The database alert log is <INSTALL_DIR>\diag\rdbms\XE\XE\trace\alert_XE.log


Database installation, creation, and configuration logs.

The <INSTALL_DIR>\cfgtoollogs\dbca\XE\XE.log file contains the results of the database creation script execution.

%Program Files%\Oracle\Inventory\logs

Software installation logs.

5.2 Performing a Silent Installation

If you plan to install Oracle Database XE on multiple computers or bundle it with a third-party application, then you may want to perform a silent installation, in which you download the installation executable and run it at a command line using the provided response files.

If you have an existing version of Oracle Database XE, you can save your data by exporting it to data files. After you install the new version of Oracle Database XE, you can import this data into the new database.

To perform a silent installation of Oracle Database XE:

  1. Log on to Windows with Administrator privileges.

    You must be part of the Administrators group on Windows to install Oracle Database XE. If you are logged in as a domain user, ensure that you are connected to the network.

  2. Download Oracle Database XE for Microsoft Windows. Extract the files to a temporary directory.

  3. Open the XEInstall.rsp response file and modify the settings if necessary.


    For information on response file parameters, see Table 5-2.
  4. If the ORACLE_HOME environment variable has been set, then delete it.

  5. Run the installation executable with the XEInstall.rsp response file.

    For example, if you extracted the setup.exe executable and the XEInstall.rsp file to a directory called xe_temp, you would enter the following command:

    c:\xe_temp> setup.exe /s /v"RSP_FILE=c:\xe_temp\response\XEInstall.rsp" /v"/L*v c:\xe_temp\setup.log" /v"/qn"

    After the installation is complete, Oracle Database XE starts.

Response File Parameters

The following table describes the important response file parameters. The parameter value cannot be empty. You must specify a valid value for the parameters.

Table 5-2 Response File Parameters

Parameter Purpose Default Value


The install directory location.

Replace [USERNAME] with current user.



The XE Database password.

All users are set with this password. Reset the password immediately after the installation is complete.



The listener port.


If listener port is set to 0, available ports will be automatically allocated starting from 1521.


The EM express port.


If EM express port is set to 0, available port will be automatically allocated starting from 5550.


The character set of the database.



Specify the database domain name for the database unique name specification.


After the installation is successfully completed, the following message is available in the log file that you have specified as the parameter to setup.exe. For example, c:\xe_temp\setup.log:

MSI (c) (28:B8) [Timestamp]: Windows Installer installed the product. Product Name: Oracle Database 21c Express Edition. Product Version: Product Language: [Current Language ID]. Manufacturer: Oracle Corporation. Installation success or error status: 0.

Since silent install runs asynchronously, you can check the log file for the completion status.

If the installation fails, see the following installation log files:
  • general logs: located at %Program Files%\Oracle\Inventory\logs
  • database creation logs: located at <Oracle_base>\cfgtoollogs