I know that for mysq, there is phpbb which is a GUI environment to manipulate the database. For mssql, there must be a similar tool. Typically (if you host provides it), you should be able to access that tool from the hosting control panel. If you are using one of the crappy bd hosts, then you may be out of luck. A popular such tool is SQL Server Web Data Administrator from Microsofts Web site.
[http://www.microsoft.com/downloads/details.aspx?FamilyId=C039A798-C57A-419E-ACBC-2A332CB7F959&displaylang=en]
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