good article; just a quick note on the insert statement; SQL 2008 allows multiple values in one INSERT statement and is quite faster than an "INSERT... SELECT... UNION ALL":

INSERT INTO...

Just a quick clarification:

SQL may consider 'SARAT' , 'Sarat' or 'sarat' as equals; depending on the Collation;

which means that you should use "...BINARY_CHECKSUM(LOWER('SARAT')..." ;

if simply using "...LOWER('SARAT')...", then you...