
Also, it does not include support for scheduled database backups and maintenance. It has all the functionality of the full version of SQL Server, but it is limited to 10GB of data, one CPU core, and 1GB of RAM.

Download the SQL Server 2008 R2 Management Studio Express installer:.If this is not done, the installation of the SQL 2008 R2 Express tools will fail. First, uninstall the older version of Microsoft SQL Server Management Studio Express under Add or Remove Programs or Programs and Features if it is already installed.If SQL Server Management Studio Express had been installed previously for an older version of SQL Express, before you can manage the 2008 R2 instance it will be necessary to download and install SQL 2008 R2 Management Studio Express: The database engine will now be upgraded to SQL Server 2008 R2 Express which will have a 10 GB database size limit. Once the upgrade completes click Close.On the Error Reporting page click Next to begin the upgrade.On the Select Instance page, make sure to select the correct named or default instance that you will be upgrading and then click Next.On the License Terms page enable the "I accept the license terms" option and then click Next.On the first page click the Upgrade from SQL Server 2000, SQL Server 2005 or SQL Server 2008 link.Run the installer to extract the files and begin the installation.

If the 64-bit version of SQL 2008 R2 Express is downloaded and the existing installation of Windows and/or SQL Express is 32-bit, the installation will either fail to extract or there will be no upgrade option. For example, if running SQL 2005 Express 32-bit, download SQLEXPR_x86_ENU.exe. NOTE: You must download the same 'bitness' of the installer in order to upgrade an existing instance.

Download the SQL Server 2008 R2 Express installer:.
