sys.assembly_types (Transact-SQL)

THIS TOPIC APPLIES TO:yesSQL Server (starting with 2008)noAzure SQL DatabaseyesAzure SQL Data Warehouse yesParallel Data Warehouse

Contains a row for each user-defined type that is defined by a CLR assembly. The following sys.assembly_types appear in the list of inherited columns (see sys.types (Transact-SQL)) after rule_object_id.

Column name Data type Description
assembly_id int ID of the assembly from which this type was created.
assembly_class sysname Name of the class within the assembly that defines this type.
is_binary_ordered bit Sorting the bytes of this type is equivalent to sorting using comparison operators on the type.
is_fixed_length bit Length of the type is always the same as max_length.
prog_id nvarchar(40) ProgID of the type as exposed to COM.
assembly_qualified_name nvarchar(4000) Assembly qualified type name. The name is in a format suitable to be passed to Type.GetType().


The visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.

See Also

Catalog Views (Transact-SQL)
Scalar Types Catalog Views (Transact-SQL)