PartitionFunction Class

The PartitionFunction object provides programmatic access to partition functions.

Inheritance Hierarchy

System.Object
  Microsoft.SqlServer.Management.Smo.SmoObjectBase
    Microsoft.SqlServer.Management.Smo.SqlSmoObject
      Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Smo.ScriptNameObjectBase
          Microsoft.SqlServer.Management.Smo.PartitionFunction

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

Syntax

'Declaration
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute> _
Public NotInheritable Class PartitionFunction _
    Inherits ScriptNameObjectBase _
    Implements ISfcSupportsDesignMode, IDroppable, IAlterable, ICreatable,  _
    IScriptable, IExtendedProperties
'Usage
Dim instance As PartitionFunction

[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
[PhysicalFacetAttribute]
public sealed class PartitionFunction : ScriptNameObjectBase, 
    ISfcSupportsDesignMode, IDroppable, IAlterable, ICreatable, IScriptable, 
    IExtendedProperties

[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
[PhysicalFacetAttribute]
public ref class PartitionFunction sealed : public ScriptNameObjectBase, 
    ISfcSupportsDesignMode, IDroppable, IAlterable, ICreatable, IScriptable, 
    IExtendedProperties

[<SealedAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
[<PhysicalFacetAttribute>]
type PartitionFunction =  
    class 
        inherit ScriptNameObjectBase 
        interface ISfcSupportsDesignMode 
        interface IDroppable 
        interface IAlterable 
        interface ICreatable 
        interface IScriptable 
        interface IExtendedProperties 
    end

public final class PartitionFunction extends ScriptNameObjectBase implements ISfcSupportsDesignMode, IDroppable, IAlterable, ICreatable, IScriptable, IExtendedProperties

The PartitionFunction type exposes the following members.

Constructors

	Name	Description
	PartitionFunction()	Initializes a new instance of the PartitionFunction class.
	PartitionFunction(Database, String)	Initializes a new instance of the PartitionFunction class for the specified database and with the specified name.

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Properties

	Name	Description
	CreateDate	Gets the date and time when the partition function was created.
	Events	Gets the events associated with the partition function.
	ExtendedProperties	Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property defined on the partition function.
	ID	Gets the zero-based ordinal of the PartitionFunction object, which specifies its position within the collection.
	Name	Gets or sets a String which contains the name of the PartitionFunction. (Overrides NamedSmoObject.Name.)
	NumberOfPartitions	Gets the number of partitions.
	Parent	Gets or sets the Database object that is the parent of the PartitionFunction object.
	PartitionFunctionParameters	Represents a collection of PartitionFunctionParameter objects. Each PartitionFunctionParameters object represents a partition function parameter defined on the partition function.
	Properties	Gets a collection of Property objects that represent the object properties. (Inherited from SqlSmoObject.)
	RangeType	Gets or sets the placement of boundary values in relation to the interval.
	RangeValues	Gets or sets range values that define the distribution of the partition function.
	State	Gets the state of the referenced object. (Inherited from SmoObjectBase.)
	Urn	Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Inherited from SqlSmoObject.)
	UserData	Gets or sets user-defined data associated with the referenced object. (Inherited from SmoObjectBase.)

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Methods

	Name	Description
	Alter	Updates any PartitionFunction object property changes on the instance of Microsoft SQL Server.
	Create	Creates a partition function on the instance of Microsoft SQL Server as defined by the PartitionFunction object.
	Discover	Discovers a list of type Object. (Inherited from SqlSmoObject.)
	Drop	Removes an existing partition function.
	Equals	(Inherited from Object.)
	FormatSqlVariant	Formats an object as SqlVariant type. (Inherited from SqlSmoObject.)
	GetContextDB	Gets the context database that is associated with this object. (Inherited from SqlSmoObject.)
	GetDBName	Gets the database name that is associated with the object. (Inherited from SqlSmoObject.)
	GetHashCode	(Inherited from Object.)
	GetPropValue	Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
	GetPropValueOptional	Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
	GetPropValueOptionalAllowNull	Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
	GetServerObject	Gets the server of the SqlSmoObject object. (Inherited from SqlSmoObject.)
	GetType	(Inherited from Object.)
	Initialize()	Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
	Initialize(Boolean)	Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
	IsObjectInitialized	Verifies whether the object has been initialized. (Inherited from SqlSmoObject.)
	IsObjectInSpace	Verifies whether the object is isolated or connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
	MergeRangePartition	Merges two existing range partitions based on the specified boundary value.
	Refresh	Refreshes the state information for the PartitionFunction object. (Overrides ScriptNameObjectBase.Refresh().)
	Script()	Generates a Transact-SQL script that can be used to re-create the partition function.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the partition function as specified by the script options.
	SetParentImpl	Sets the parent of the SqlSmoObject to the newParent parameter. (Inherited from SqlSmoObject.)
	SplitRangePartition	Splits an existing range partition into two parts based on a supplied boundary value.
	ToString	Returns a String that represents the referenced object. (Inherited from SqlSmoObject.)
	Validate	Validates the state of an object. (Inherited from SmoObjectBase.)

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Events

	Name	Description
	PropertyChanged	Represents the event that occurs when a property is changed. (Inherited from SqlSmoObject.)
	PropertyMetadataChanged	Represents the event that occurs when property metadata changes. (Inherited from SqlSmoObject.)

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Explicit Interface Implementations

	Name	Description
	IAlienObject.Discover	Discovers any dependencies. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
	IAlienObject.GetDomainRoot	Returns the root of the domain. (Inherited from SqlSmoObject.)
	IAlienObject.GetParent	Gets the parent of this object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
	IAlienObject.GetPropertyType	Gets the type of the specified property. (Inherited from SqlSmoObject.)
	IAlienObject.GetPropertyValue	Gets the value of the specified property. (Inherited from SqlSmoObject.)
	IAlienObject.GetUrn	Gets the Unified Resource Name (URN) of the object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
	IAlienObject.Resolve	Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Inherited from SqlSmoObject.)
	IAlienObject.SetObjectState	Sets the object state to the specified SfcObjectState value. (Inherited from SqlSmoObject.)
	IAlienObject.SetPropertyValue	Sets the property value. (Inherited from SqlSmoObject.)
	ISfcPropertyProvider.GetPropertySet	Gets the interface reference to the set of properties of this object. (Inherited from SqlSmoObject.)
	ISfcSupportsDesignMode.IsDesignMode	Gets a Boolean value that indicates whether the object supports design mode. Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.

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Remarks

Partition functions are used to partition tables and indexes across multiple file groups.

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

To set PartitionFunction object propertied, users must ALTER permission on the database or ALTER ANY DATASPACE permission on the server, or be a member of the db_owner or db_ddladmin fixed database roles or a member of sysadmin fixed server role.

To create or drop a partition function, users must have ALTER permission on the database or ALTER ANY DATASPACE permission on the server, or be a member of the db_owner or db_ddladmin fixed database roles or a member of sysadmin fixed server role.

To merge or split the range values on the partition function, users must have ALTER permission on the database or ALTER ANY DATASPACE permission on the server, or be a member of the db_owner or db_ddladmin fixed database roles or a member of sysadmin fixed server 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.

Examples

Using Filegroups and Files to Store Data

Thread Safety

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

See Also

Reference

Microsoft.SqlServer.Management.Smo Namespace

Other Resources

CREATE PARTITION FUNCTION (Transact-SQL)