Creating object type

How to create object type in sql server,
i.e in Oracle we can directly create an object TYPE and we can use it in other applications.
What's the equivalent of this object Type in SQL Serverdo you mean a user defined type?|||Yes, a user defined type|||have a look at udts in BOL:

for CLR based types (2005 only): http://msdn2.microsoft.com/en-us/library/ms131106.aspx

for SQL based types:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_addp_584l.asp (2000 syntax, deprecated in 2005 - there you should use CREATE TYPE instead)|||I was going to bring up CLR triggers here but I am not sure I want all of that application code running under my sql service. The book I am writing makes a fair case for some things .Net does faster than sql like string manipulation, running totals and such but I am not sure I am sold yet.