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UserDefinedDataType Class

The UserDefinedDataType object represents a Microsoft SQL Server user-defined data type data type.

Namespace: Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)
public sealed class UserDefinedDataType : ScriptSchemaObjectBase, ICreatable, IAlterable, IDroppable, 
	IRenamable, IExtendedProperties, IScriptable, IObjectPermission
public final class UserDefinedDataType extends ScriptSchemaObjectBase implements ICreatable, IAlterable, 
	IDroppable, IRenamable, IExtendedProperties, IScriptable, IObjectPermission
public final class UserDefinedDataType extends ScriptSchemaObjectBase implements ICreatable, IAlterable, 
	IDroppable, IRenamable, IExtendedProperties, IScriptable, IObjectPermission

This namespace, class, or member is supported only in version 2.0 of the Microsoft .NET Framework.

To get UserDefinedDataType object permissions, users can be a member of the public fixed server role.

To set UserDefinedDataType object permissions, users must have CREATE TYPE permission in the parent database and ALTER permission on specified schema. If an assembly is specified, users must either own the assembly or have REFERENCES permission on it.

To create an user-defined data type data type, users must have CREATE TYPE permission in the parent database and ALTER permission on specified schema. If an assembly is specified, users must either own the assembly or have REFERENCES permission on it.

To drop a user-defined data type data type, users must have CONTROL permission on the type and ALTER permission on the specified schema.


Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Development Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

Target Platforms

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