select '@' + c.name, col_definition =
case t.name
when 'bigint' then 'bigint,'
when 'int' then 'int,'
when 'smallint' then 'smallint,'
when 'tinyint' then 'tinyint,'
when 'bit' then 'bit,'
when 'decimal' then 'decimal,'
when 'numeric' then 'numeric,'
when 'money' then 'money,'
when 'smallmoney' then 'smallmoney,'
when 'float' then 'float,'
when 'real' then 'real,'
when 'datetime' then 'datetime,'
when 'smalldatetime' then 'smalldatetime,'
when 'sql_variant' then 'sql_variant,'
when 'timestamp' then 'timestamp,'
when 'uniqueidentifier' then 'uniqueidentifier,'
when 'xml' then 'xml,'
else t.name + '(' + cast(c.prec as varchar(50)) + '),'
end
from sysobjects s
inner join sys.syscolumns c on s.id = c.id
inner join sys.types t on t.user_type_id = c.xtype
where s.xtype='U'
and s.name = 'Product'