Transact-SQL Data Types

Microsoft SQL Server 2005 introduces a new data type and has enhanced several of the existing SQL Server data types.

New Data Types

Data type	Description
xml	Used to store XML data.

Data types	Description
varchar(max)	Indicates that the maximum storage size for the varchar data type is 2^31-1 bytes.
nvarchar(max)	Indicates that the maximum storage size for the nvarchar data type is 2^31-1 bytes.
varbinary(max)	Indicates that the maximum storage size for the varbinary data type is 2^31-1 bytes.