Where does the Table Type gets stored in sql server? And how can we redefine it?

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SQL-Server-2008

I was reading about Table Value Parameter which seems interesting.. but i want to know that when we define a table type in database where does it get saved? What is its scope? And How can i modify that type .. suppose i created a table type as...

SQL

CREATE TYPE DeptType AS TABLE
(
DeptId INT, DeptName VARCHAR(30)
);

Now how can i get the schema of DeptType in future? How can i modify it?

Posted 2-Sep-13 19:27pm

arbaaz jalil

Updated 2-Sep-13 19:30pm

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Raja Sekhar S · Answer 1 · 2013-09-02T20:44:00

If you want to See the User Defined Data Types u have to Query the systypes or sys.types table...

SQL

SELECT * FROM sys.types WHERE is_user_defined = 1
SELECT * FROM systypes WHERE xusertype > 256

user Defined Datatypes Cannot be modified... Instead u have to Drop the user defined data type and Create it again...
Check this...
Modifying User Defined Data Types..[^]
dbfriend.net how-to-alter-user-defined-data-type[^]