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DefaultConstraint Class

The DefaultConstraint object represents a SQL Server default constraint.

Namespace:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

[SfcElementTypeAttribute("Default")]
public sealed class DefaultConstraint : ScriptNameObjectBase, 
	ICreatable, IDroppable, IRenamable, IAlterable, IExtendedProperties, 
	IScriptable

To get DefaultConstraint object properties, users can be members of the public fixed server role.

To set DefaultConstraint object properties, users must have ALTER permission on the parent table or be a member of the db_owner fixed database role.

To create or drop a default constraint, users must have ALTER permission on the parent table or be a member of the db_owner fixed database role.

Thread Safety

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

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