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Index Class

The Index object represents a SQL Server index.

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.Index

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

Syntax

'Declaration
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute> _
Public NotInheritable Class Index _
    Inherits ScriptNameObjectBase _
    Implements ICreatable, IDroppable, IMarkForDrop, IAlterable,  _
    IRenamable, IExtendedProperties, IScriptable, ISfcSupportsDesignMode
'Usage
Dim instance As Index
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
[PhysicalFacetAttribute]
public sealed class Index : ScriptNameObjectBase, 
    ICreatable, IDroppable, IMarkForDrop, IAlterable, IRenamable, 
    IExtendedProperties, IScriptable, ISfcSupportsDesignMode
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
[PhysicalFacetAttribute]
public ref class Index sealed : public ScriptNameObjectBase, 
    ICreatable, IDroppable, IMarkForDrop, IAlterable, IRenamable, 
    IExtendedProperties, IScriptable, ISfcSupportsDesignMode
[<SealedAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
[<PhysicalFacetAttribute>]
type Index =  
    class 
        inherit ScriptNameObjectBase 
        interface ICreatable 
        interface IDroppable 
        interface IMarkForDrop 
        interface IAlterable 
        interface IRenamable 
        interface IExtendedProperties 
        interface IScriptable 
        interface ISfcSupportsDesignMode 
    end
public final class Index extends ScriptNameObjectBase implements ICreatable, IDroppable, IMarkForDrop, IAlterable, IRenamable, IExtendedProperties, IScriptable, ISfcSupportsDesignMode

The Index type exposes the following members.

Constructors

  Name Description
Public method Index() Initializes a new instance of the Index class.
Public method Index(SqlSmoObject, String) Initializes a new instance of the Index class on the specified parent object and with the specified name.

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Properties

  Name Description
Public property BoundingBoxXMax Specifies the x-coordinate of the upper right corner of a bounding box.
Public property BoundingBoxXMin Specifies the x-coordinate of the lower-left corner of a bounding box.
Public property BoundingBoxYMax Specifies the y-coordinate of upper-right corner of a bounding box.
Public property BoundingBoxYMin Specifies the y-coordinate of the lower-left corner of a bounding box.
Public property CellsPerObject Defines the maximum number of cells that tessellation can count per object.
Public property CompactLargeObjects Gets or sets the Boolean property value that specifies whether to compact the large object (LOB) data in the index.
Public property DisallowPageLocks Gets or sets the Boolean property value that specifies whether the index allows page locks.
Public property DisallowRowLocks Gets or sets the Boolean property value that specifies whether the index allows row locks.
Public property Events Gets the index events supported by the Index object.
Public property ExtendedProperties Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property defined on the Index object.
Public property FileGroup Gets or sets the filegroup where the index pages are stored.
Public property FileStreamFileGroup Gets or Sets the file group name for the index.
Public property FileStreamPartitionScheme Gets or Sets the partition scheme name for the index.
Public property FillFactor Gets or sets the percentage of an index page to fill when the index is created or re-created.
Public property FilterDefinition Gets or sets the String value that contains the definition for the filter.
Public property HasCompressedPartitions Gets or sets the Boolean property value that specifies whether the index has compressed partitions.
Public property HasFilter Gets the Boolean property value that specifies whether the index has a filter defined for a range of index values.
Public property ID Gets the index ID value that uniquely identifies the index within the database.
Public property IgnoreDuplicateKeys Gets or sets the Boolean property value that specifies whether the index ignores duplicate keys.
Public property IndexedColumns Gets a collection of IndexedColumn objects that represent all the columns participating in the index.
Public property IndexedXmlPathName Gets or sets the name of the indexed XML path.
Public property IndexedXmlPathNamespaces Gets the collection of indexed XML path namespace.
Public property IndexedXmlPaths Gets or sets the collection of indexed XML paths.
Public property IndexKeyType Gets or sets the index key type.
Public property IndexType Gets or sets the type of index.
Public property IsClustered Gets or sets the Boolean property value that specifies whether the index is clustered.
Public property IsDisabled Gets or sets the Boolean property value that specifies whether the index is disabled.
Public property IsFileTableDefined Gets or sets whether the file table is defined.
Public property IsFullTextKey Gets the Boolean value that specifies whether the index is enabled for row identification in Microsoft Search.
Public property IsIndexOnComputed Gets the Boolean property value that specifies whether the index is based on a computed column.
Public property IsIndexOnTable Gets the Boolean property value that specifies whether the index is defined for a table or a view.
Public property IsPartitioned Gets the Boolean property value that specifies whether the index is stored in a partitioned scheme.
Public property IsSpatialIndex Gets a value that indicates whether an index is a spatial index.
Public property IsSystemNamed Gets the Boolean property value that specifies whether the index was named automatically by the system.
Public property IsSystemObject Gets the Boolean property value that specifies whether the index is a system object.
Public property IsUnique Gets or sets the Boolean property value that specifies whether the index is unique or not.
Public property IsXmlIndex Gets or sets the Boolean property value that specifies whether the index is an XML index.
Public property Level1Grid Gets or sets the first level of decomposition for a geometry data type.
Public property Level2Grid Specifies the second level of decomposition for a geometry data type.
Public property Level3Grid Specifies the third level of decomposition for a geometry data type.
Public property Level4Grid Gets or sets the fourth level of decomposition for a geometry data type.
Public property MaximumDegreeOfParallelism Gets or sets the maximum number of processors that can be used when running a query that uses the index.
Public property Name Gets or sets the name of the index. (Overrides NamedSmoObject.Name.)
Public property NoAutomaticRecomputation Gets or sets the Boolean property value that specifies whether statistics are regenerated when an index is created.
Public property OnlineIndexOperation Gets or sets the Boolean property value that specifies whether the index will be kept online during index operations thus allowing access to the data.
Public property PadIndex Gets or sets the Boolean property value that specifies whether space is left open on each page of the intermediate levels of the index.
Public property Parent Gets or sets the SqlSmoObject object that is the parent of the Index object.
Public property ParentXmlIndex Gets or sets the parent of an XML index.
Public property PartitionScheme Gets or sets the partition scheme associated with the index.
Public property PartitionSchemeParameters Represents a collection of PartitionSchemeParameter objects. Each PartitionSchemeParameter object represents a parameter in the partition scheme associated with the index.
Public property PhysicalPartitions Gets a collection of PhysicalPartition objects that represent all the physical partitions on which the index is stored.
Public property Properties Gets a collection of Property objects that represent the object properties. (Inherited from SqlSmoObject.)
Public property SecondaryXmlIndexType Gets or sets the secondary XML index type.
Public property SortInTempdb Gets or sets the Boolean property value that specifies whether the index is sorted using the tempdb database for intermediate storage of data.
Public property SpaceUsed Gets or sets the disk space used to store the index data in kilobytes.
Public property SpatialIndexType Gets or sets the Spatial Index Type for a column.
Public property State Gets the state of the referenced object. (Inherited from SmoObjectBase.)
Public property Urn Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Inherited from SqlSmoObject.)
Public property UserData Gets or sets user-defined data associated with the referenced object. (Inherited from SmoObjectBase.)

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Methods

  Name Description
Public method Alter() Updates any Index object property changes on the instance of SQL Server.
Public method Alter(IndexOperation) Updates any Index object property changes on the instance of SQL Server for a specified index operation.
Public method AlterAllIndexes Updates any Index object property changes for all indexes on the instance of SQL Server for a specified index operation.
Public method CheckIndex Tests the integrity of database pages that store the index.
Public method CheckIndexWithResult Tests the integrity of database pages that store the index.
Public method Create Creates an index on the instance of SQL Server as defined by the Index object.
Public method Disable Disables the index.
Public method Discover Discovers a list of type Object. (Inherited from SqlSmoObject.)
Public method Drop Drops the index.
Public method DropAndMove(String) Drops a clustered index and moves the underlying table data to the specified filegroup.
Public method DropAndMove(String, StringCollection) Drops a clustered index and moves the underlying table data to the partition scheme with the specified partition scheme parameters.
Public method Enable Enables the index.
Public method EnumFragmentation() Enumerates a list of fragmentation information for the index using the default fast fragmentation option.
Public method EnumFragmentation(FragmentationOption) Enumerates a list of fragmentation information for the index with the specified fragmentation option.
Public method EnumFragmentation(FragmentationOption, Int32) Enumerates a list of fragmentation information for the index with the specified fragmentation option and partition number.
Public method EnumStatistics Enumerates a list of statistical information for the index.
Public method Equals (Inherited from Object.)
Protected method FormatSqlVariant Formats an object as SqlVariant type. (Inherited from SqlSmoObject.)
Protected method GetContextDB Gets the context database that is associated with this object. (Inherited from SqlSmoObject.)
Protected method GetDBName Gets the database name that is associated with the object. (Inherited from SqlSmoObject.)
Public method GetHashCode (Inherited from Object.)
Protected method GetPropValue Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetPropValueOptional Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetPropValueOptionalAllowNull Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetServerObject Gets the server of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Public method GetType (Inherited from Object.)
Public method Initialize() Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Public method Initialize(Boolean) Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Protected method IsObjectInitialized Verifies whether the object has been initialized. (Inherited from SqlSmoObject.)
Protected method IsObjectInSpace Verifies whether the object is isolated or connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
Public method MarkForDrop Marks the index to be dropped the next time that the Alter method is run on the Index object's parent object.
Public method Rebuild() Rebuilds the index.
Public method Rebuild(Int32) Rebuilds the index on the partition with the specified partition number.
Public method RebuildAllIndexes Rebuilds all the indexes.
Public method RecalculateSpaceUsage Updates the disk resource usage of the index.
Public method Recreate Re-creates the index.
Public method Refresh Refreshes the Index object and its properties. (Overrides ScriptNameObjectBase.Refresh().)
Public method Rename Renames the index.
Public method Reorganize Reorganizes the index based on current property settings.
Public method ReorganizeAllIndexes Reorganizes all the indexes based on current property settings.
Public method Script() Generates a Transact-SQL script that can be used to re-create the index.
Public method Script(ScriptingOptions) Generates a Transact-SQL script that can be used to re-create the index as specified by the script options.
Protected method SetParentImpl Sets the parent of the SqlSmoObject to the newParent parameter. (Inherited from SqlSmoObject.)
Public method ToString Returns a String that represents the referenced object. (Inherited from SqlSmoObject.)
Public method UpdateStatistics() Updates statistics for the referenced index.
Public method UpdateStatistics(StatisticsScanType) Updates statistics for the referenced index with the specified statistics scan type.
Public method UpdateStatistics(StatisticsScanType, Int32) Updates statistics for the referenced index with the specified statistics scan type and specified sample size.
Public method UpdateStatistics(StatisticsScanType, Int32, Boolean) Updates statistics for the referenced index with the specified statistics scan type and specified sample size and with the option to recompute the statistics.
Public method Validate Validates the state of an object. (Inherited from SmoObjectBase.)

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Events

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

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Explicit Interface Implementations

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

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Remarks

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

To set Index object properties, create or drop an index, update statistics on an index, or rebuild, reorganize, or re-create an index, users must have one of the following:

  • ALTER permission on the parent table or view

  • Membership of the db_owner or the db_ddladmin fixed database roles

  • Membership of the 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

Creating, Altering, and Removing Indexes

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

Indexes

CREATE INDEX (Transact-SQL)