JDBC-ODBC bridge has a very poor performance for
real-world applications. I further suggest you not to
use SQL Server because it's going to be a part of .Net
and .NET and Java are going to be mutually exclusive
(they are enemies!). I suggest you to use one of
Oracle 9i, IBM DB2, SapDB, PostgreSQL, MySQL, or even
pure Java RDBMS systems such as IBM Cloudscape and
Borland JDataStore.