>>By default, SQL Server’s use of indexes is case-insensitive
>>
>>You may also want to take a look at collating sequences.
>>http://www.sqlteam.com/article/using-indexed-computed-columns-to-improve-performance
>
>The only reason I added UPPER() expressions in VFP was to benefit of UPPER() searches and be optimized. In SQL Server, if I only have an index on Username for example, which was previously UPPER(Username) in VFP, will it still be optimized even when UPPER(Username) is used in a WHERE clause?

Yes and no. In SQL2000 (I cannot comment on SQL2005), using the UPPER() would force a index scan rather than an index seek. Though an index scan is faster than a table scan, it is significantly slower than an index seek. If possible, get rid of the UPPER()...