Column Class

Reference

Definition

Namespace:: Microsoft.SqlServer.Management.Smo

Assembly:: Microsoft.SqlServer.Smo.dll

Package:: Microsoft.SqlServer.SqlManagementObjects v150.18208.0

Package:: Microsoft.SqlServer.SqlManagementObjects v160.2004021.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Instance class encapsulating : Server[@Name='']/Database/Table/Column

public sealed class Column : Microsoft.SqlServer.Management.Smo.ScriptNameObjectBase, Microsoft.SqlServer.Management.Common.IAlterable, Microsoft.SqlServer.Management.Common.ICreatable, Microsoft.SqlServer.Management.Common.IDropIfExists, Microsoft.SqlServer.Management.Common.IDroppable, Microsoft.SqlServer.Management.Common.IMarkForDrop, Microsoft.SqlServer.Management.Common.IRenamable, Microsoft.SqlServer.Management.Sdk.Sfc.ISfcSupportsDesignMode, Microsoft.SqlServer.Management.Smo.IExtendedProperties

type Column = class
    inherit ScriptNameObjectBase
    interface ISfcSupportsDesignMode
    interface ICreatable
    interface IAlterable
    interface IDroppable
    interface IDropIfExists
    interface IMarkForDrop
    interface IExtendedProperties
    interface IRenamable

type Column = class
    inherit ScriptNameObjectBase
    interface ICreatable
    interface IAlterable
    interface IDroppable
    interface IDropIfExists
    interface IMarkForDrop
    interface IExtendedProperties
    interface IRenamable
    interface ISfcSupportsDesignMode

Public NotInheritable Class Column
Inherits ScriptNameObjectBase
Implements IAlterable, ICreatable, IDropIfExists, IDroppable, IExtendedProperties, IMarkForDrop, IRenamable, ISfcSupportsDesignMode

Inheritance: Object

SmoObjectBase

SqlSmoObject

NamedSmoObject

ScriptNameObjectBase
Column

Implements: IAlterable ICreatable IDropIfExists IDroppable IMarkForDrop IRenamable ISfcSupportsDesignMode IExtendedProperties

Constructors

Column()
Column(SqlSmoObject, String)
Column(SqlSmoObject, String, DataType)
Column(SqlSmoObject, String, DataType, Boolean)

Fields

m_ExtendedProperties	(Inherited from SqlSmoObject)
singletonParent	Regular SMO objects access the parent class reference through parentColl (corresponding collection in parent class). Singleton class has no collection in parent. (Inherited from SqlSmoObject)

Properties

AnsiPaddingStatus
Collation
ColumnEncryptionKeyID
ColumnEncryptionKeyName
Computed
ComputedText
DatabaseEngineEdition	Returns the DatabaseEngineEdition of the SMO object (Inherited from SqlSmoObject)
DatabaseEngineType	Returns the DatabaseEngineType of the SMO object (Inherited from SqlSmoObject)
DataType
Default
DefaultConstraint
DefaultConstraintName
DefaultSchema
DistributionColumnName
EncryptionAlgorithm
EncryptionType
ExecuteForScalar	(Inherited from SqlSmoObject)
ExecutionManager	(Inherited from SqlSmoObject)
ExtendedProperties
GeneratedAlwaysType
GraphType
ID
Identity
IdentityIncrement
IdentityIncrementAsDecimal
IdentitySeed
IdentitySeedAsDecimal
InPrimaryKey
IsClassified
IsColumnSet
IsDeterministic
IsDistributedColumn
IsEncrypted
IsFileStream
IsForeignKey
IsFullTextIndexed
IsHidden
IsMasked
IsPersisted
IsPrecise
IsSparse
IsTouched	Whether the object has been touched for unconditional scripting of Alter (Inherited from SqlSmoObject)
MaskingFunction
Name
NotForReplication
Nullable
ObjectInSpace	(Inherited from SqlSmoObject)
Parent
ParentCollection	Returns the collection that contains the object. May be null. (Inherited from SqlSmoObject)
Properties	(Inherited from SqlSmoObject)
RowGuidCol
Rule
RuleSchema
ScalarResult	(Inherited from SqlSmoObject)
SensitivityInformationTypeId
SensitivityInformationTypeName
SensitivityLabelId
SensitivityLabelName
SensitivityRank
ServerVersion	Returns the ServerVersion of the Server that contains the object. If the object is not associated with a connected Server, the highest known server version is returned. (Inherited from SqlSmoObject)
State	Returns the state of the object (Inherited from SmoObjectBase)
StatisticalSemantics
Urn	Returns the Urn of the object, computed on the fly (Inherited from SqlSmoObject)
UrnSuffix	returns the name of the type in the urn expression
UserData	(Inherited from SmoObjectBase)

Methods

AddDatabaseContext(StringCollection)	method get called from the create script related method (from derived classes like Table, Index etc..) (Inherited from SqlSmoObject)
AddDefaultConstraint()
AddDefaultConstraint(String)
Alter()
AlterImpl()	(Inherited from SqlSmoObject)
AlterImplWorker()	(Inherited from SqlSmoObject)
AppendCommaText(StringBuilder, String, Boolean, String)	(Inherited from ScriptNameObjectBase)
AppendWithCommaText(StringBuilder, String, Boolean)	(Inherited from ScriptNameObjectBase)
AppendWithOption(StringBuilder, String, String, Boolean)	(Inherited from ScriptNameObjectBase)
AutoGenerateName()	(Inherited from ScriptNameObjectBase)
BindDefault(String, String)	Invokes sp_bindefault to bind the column to the given named default
BindDefaultImpl(String, String, Boolean)	(Inherited from SqlSmoObject)
BindRule(String, String)	Invokes sp_bindrule to bind the column to the given rule
BindRuleImpl(String, String, Boolean)	(Inherited from SqlSmoObject)
CheckObjectDirty()	If there are some properties which are respected in special cases then use this function. currently applicable for DatabaseDdltriggers (Inherited from ScriptNameObjectBase)
CheckObjectState()	(Inherited from SqlSmoObject)
CheckObjectState(Boolean)	This is a virtual function, so that derived classes can override it if they want to do additional checks on the state of the object (Inherited from SqlSmoObject)
CheckObjectStateImpl(Boolean)	Checks object state Because it is not recusrive, this function can be called directly and which means derived classes can't supply their own validation (Inherited from SqlSmoObject)
CheckTextCorrectness(String, Boolean, Boolean, Boolean, String[], DdlTextParserHeaderInfo)	checks text syntax, that it manipulates the right type of object ( PROC, TRIGGER, etc ) (Inherited from ScriptNameObjectBase)
CheckTextCorrectness(String, Boolean, Boolean, String[], DdlTextParserHeaderInfo)	checks text syntax, that it manipulates the right type of object ( PROC, TRIGGER, etc ) (Inherited from ScriptNameObjectBase)
CheckTextModeSupport()	(Inherited from ScriptNameObjectBase)
CleanObject()	(Inherited from ScriptNameObjectBase)
Create()
CreateImpl()	(Inherited from SqlSmoObject)
CreateOrAlterImpl()	(Inherited from SqlSmoObject)
Discover()	Best Effort Discovery mechanism : This method reflects upon metadata and gets all available objects (Inherited from SqlSmoObject)
Drop()
DropIfExists()	Drops the object with IF EXISTS option. If object is invalid for drop function will return without exception.
DropImpl(Boolean)	drops the object (Inherited from SqlSmoObject)
DropImpl(Boolean, Boolean)	For drop calls on the user database in Azure, the connection will be closed as the database is dropped The ExecutionManager will normally attempt to retry such calls by reopening the connection We want to avoid this retry when handleSevereError is true. (Inherited from SqlSmoObject)
DropImplWorker(Urn, Boolean)	drops the object (Inherited from SqlSmoObject)
EnumForeignKeys()
EnumIndexes()
EnumUserPermissions(String)
ExecuteNonQuery(StringCollection, Boolean, Boolean)	Executes sql statements (Inherited from SqlSmoObject)
ExecuteRenameQuery(String)	Creates the Rename query for a SqlSmoObject and Executes it on the Server. (Inherited from NamedSmoObject)
ExecuteWithModes(SqlExecutionModes, Action)	Executes the given action under the given execution modes. Resets the original modes after the action completes or fails. (Inherited from SqlSmoObject)
ForceTextModeOnTextBody()	(Inherited from ScriptNameObjectBase)
FormatSqlVariant(Object)	(Inherited from SqlSmoObject)
GenerateAlterEvent()	(Inherited from SqlSmoObject)
GenerateAlterEvent(Urn, Object)	(Inherited from SqlSmoObject)
GetBraketNameForText()	(Inherited from ScriptNameObjectBase)
GetContextDB()	(Inherited from SqlSmoObject)
GetDBName()	(Inherited from SqlSmoObject)
GetDisabledProperties(ScriptingPreferences)	Provides an enumerable of properties that are explicitly disabled for specific server types or editions. This is not a list of all properties that don't work for the specified target. (Inherited from SqlSmoObject)
GetFragOptionString(FragmentationOption)	(Inherited from SqlSmoObject)
GetIsSystemNamed()	(Inherited from ScriptNameObjectBase)
GetIsTextDirty()	(Inherited from ScriptNameObjectBase)
GetPropValue(String)	Retrieve the property value from : - The property bag directly if property is available (dirty or retrieved) - A call to our OnPropertyMissing method otherwise Will throw an exception if the property value is NULL in either case. (Inherited from SqlSmoObject)
GetPropValueOptional(String)	Retrieve the property value from : - The property bag if the state is creating or we're in Design Mode (possible NULL value) - A call to our OnPropertyMissing method otherwise (will throw exception if value is NULL) (Inherited from SqlSmoObject)
GetPropValueOptional<T>(String, T)	Returns the value of the named property. If the object is in the Creating state and the property has not yet been set the defaultValue is returned. If the object exists the defaultValue is ignored and the actual value is returned. (Inherited from SqlSmoObject)
GetPropValueOptionalAllowNull(String)	Retrieve the property value from : - The property bag if the state is creating or we're in Design Mode (possible NULL) - A call to our OnPropertyMissing method otherwise (possible NULL) (Inherited from SqlSmoObject)
GetRealValue(Property, Object)	Returns the real value for the property. (Inherited from SqlSmoObject)
GetServerName()	(Inherited from SqlSmoObject)
GetServerObject()	(Inherited from SqlSmoObject)
GetSqlServerVersionName()	Gets the sqlserver public name for the current connection, e.g: will transfer "SQLTOOLS2008-2" to "SQL Server 2008". (Inherited from SqlSmoObject)
GetStringComparer()	Returns the comparer used by all child object collections to perform comparison of object names. The comparer of a Server is based on the collation of master The comparer of a Database and its children is based on the database collation (Inherited from SqlSmoObject)
GetTextBody()	(Inherited from ScriptNameObjectBase)
GetTextBody(Boolean)	(Inherited from ScriptNameObjectBase)
GetTextHeader(Boolean)	(Inherited from ScriptNameObjectBase)
GetTextHeader(ScriptNameObjectBase+ScriptHeaderType)	(Inherited from ScriptNameObjectBase)
GetTextMode()	(Inherited from ScriptNameObjectBase)
GetTextProperty(String)	get the text of the object, if not available, throw apropiate exception based on the State of the object (Inherited from ScriptNameObjectBase)
GetUrnRecursive(StringBuilder)	Computes the Urn for the object. (Inherited from SqlSmoObject)
GetUrnRecursive(StringBuilder, UrnIdOption)	Computes the Urn for the object, potentially including other fields in the definition besides the key fields. (Inherited from SqlSmoObject)
ImplInitialize(String[], OrderBy[])	(Inherited from SqlSmoObject)
InitChildCollection(Urn, Boolean)	Initializes the child object collection associated with the given type. For example, the name Column would initialize the Columns collection. (Inherited from SqlSmoObject)
Initialize()	(Inherited from SqlSmoObject)
Initialize(Boolean)	Initializes the object, by reading its properties from the enumerator (Inherited from SqlSmoObject)
IsExpressSku()	Returns whether the server containing this object is an Express SKU (Inherited from SqlSmoObject)
IsObjectDirty()	(Inherited from ScriptNameObjectBase)
IsObjectInitialized()	(Inherited from SqlSmoObject)
IsObjectInSpace()	(Inherited from SqlSmoObject)
IsSupportedProperty(String)	Validate whether the specified property is supported in current server environment (Inherited from SqlSmoObject)
IsVersion80SP3()	(Inherited from SqlSmoObject)
IsVersion90AndAbove()	(Inherited from SqlSmoObject)
MarkDropped()	(Inherited from SqlSmoObject)
MarkForDrop(Boolean)
MarkForDropImpl(Boolean)	(Inherited from SqlSmoObject)
PostAlter()	this function is meant to be overriden by derived classes, if they have to do supplimentary actions after altering the object (Inherited from SqlSmoObject)
PostCreate()	this function is meant to be overriden by derived classes, if they have to do supplimentary actions after object creation (Inherited from SqlSmoObject)
PostDrop()	this function is meant to be overriden by derived classes, if they have to do supplimentary actions after dropping the object (Inherited from SqlSmoObject)
Refresh()
RemoveClassification()	Clears classification fields
Rename(String)
RenameImpl(String)	change object name (Inherited from NamedSmoObject)
RenameImplWorker(String)	(Inherited from NamedSmoObject)
ScriptDataClassification(StringCollection, ScriptingPreferences, Boolean)	Appends corresponding data classification script to the main query
ScriptImpl()	(Inherited from SqlSmoObject)
ScriptImpl(ScriptingOptions)	Returns a StringCollection object with the script for the object. This method throws an error if ScriptData is true (Inherited from SqlSmoObject)
SetAccessToken(IRenewableToken)	Set the accessToken for connection. (Inherited from SqlSmoObject)
SetCollectionTextMode(Boolean, SmoCollectionBase)	(Inherited from ScriptNameObjectBase)
SetIsSystemNamed(Boolean)	(Inherited from ScriptNameObjectBase)
SetParentImpl(SqlSmoObject)	(Inherited from SqlSmoObject)
SetSchemaOwned()	(Inherited from NamedSmoObject)
SetState(SqlSmoState)	Sets the object state (Existing, Dropped etc.) Applications should avoid using this method. (Inherited from SmoObjectBase)
SetTextBody(String)	(Inherited from ScriptNameObjectBase)
SetTextHeader(String)	(Inherited from ScriptNameObjectBase)
SetTextMode(Boolean, SmoCollectionBase[])	(Inherited from ScriptNameObjectBase)
SwitchTextMode(Boolean, SmoCollectionBase[])	(Inherited from ScriptNameObjectBase)
ThrowIfAboveVersion100(String)	Throws an exception if the ServerVersion major version for this object is above 10.0 (SQL 2008) (Inherited from SqlSmoObject)
ThrowIfAboveVersion80(String)	Throws an exception if the ServerVersion major version for this object is above 8.0 (SQL 2000) (Inherited from SqlSmoObject)
ThrowIfBelowVersion100(String)	Throws an exception if the ServerVersion major version for this object is below 10.0 (SQL 2008) (Inherited from SqlSmoObject)
ThrowIfBelowVersion110(String)	Throws an UnsupportedVersionException if either the source or destination server is below 11.0 (SQL 2012) (Inherited from SqlSmoObject)
ThrowIfBelowVersion110Prop(String)	Throws an exception with text saying the specified property is not supported if the ServerVersion major version for this object is below 11.0 (SQL 2012) (Inherited from SqlSmoObject)
ThrowIfBelowVersion120(String)	Throws an exception if the ServerVersion major version for this object is below 12.0 (SQL 2014) (Inherited from SqlSmoObject)
ThrowIfBelowVersion120Prop(String)	Throws an exception with text saying the specified property is not supported if the ServerVersion major version for this object is below 12.0 (SQL 2014) (Inherited from SqlSmoObject)
ThrowIfBelowVersion130(String)	Throws an exception if the ServerVersion major version for this object is below 13.0 (SQL 2016) (Inherited from SqlSmoObject)
ThrowIfBelowVersion130Prop(String)	Throws an exception with text saying the specified property is not supported if the ServerVersion major version for this object is below 13.0 (SQL 2016) (Inherited from SqlSmoObject)
ThrowIfBelowVersion140(String)	Throws an exception if the ServerVersion major version for this object is below 14.0 (SQL 2017) (Inherited from SqlSmoObject)
ThrowIfBelowVersion140Prop(String)	Throws an exception with text saying the specified property is not supported if the ServerVersion major version for this object is below 14.0 (SQL 2017) (Inherited from SqlSmoObject)
ThrowIfBelowVersion80(String)	Throws an exception if the ServerVersion major version for this object is below 8.0 (SQL 2000) (Inherited from SqlSmoObject)
ThrowIfBelowVersion80SP3()	Throws an exception if the ServerVersion for this object is below 8.760 (8.0 SP3) (Inherited from SqlSmoObject)
ThrowIfBelowVersion90(String)	Throws an exception if the ServerVersion major version for this object is below 9.0 (SQL 2005) (Inherited from SqlSmoObject)
ThrowIfTextIsDirtyForAlter()	(Inherited from ScriptNameObjectBase)
ToString()	(Inherited from SqlSmoObject)
Touch()	Mark the object "touched" for unconditional scripting of Alter. (Inherited from SqlSmoObject)
TouchImpl()	Virtual method to allow derived classes to do additional work when touched. (Inherited from SqlSmoObject)
UnbindDefault()	Invokes sp_unbindefault to unbind the column from its current named default
UnbindDefaultImpl(Boolean)	(Inherited from SqlSmoObject)
UnbindRule()	Invokes sp_unbindrule to unbind the column from its current rule binding
UnbindRuleImpl(Boolean)	(Inherited from SqlSmoObject)
UpdateStatistics()	forces data distribution statistics update for a referenced index or all indexes defined on a SQL Server table.
UpdateStatistics(StatisticsScanType)	forces data distribution statistics update for a referenced index or all indexes defined on a SQL Server table.
UpdateStatistics(StatisticsScanType, Int32)	forces data distribution statistics update for a referenced index or all indexes defined on a SQL Server table.
UpdateStatistics(StatisticsScanType, Int32, Boolean)	forces data distribution statistics update for a referenced index or all indexes defined on a SQL Server table.
Validate(String, Object[])	(Inherited from SmoObjectBase)

Events

PropertyChanged	(Inherited from SqlSmoObject)
PropertyMetadataChanged	(Inherited from SqlSmoObject)

Explicit Interface Implementations

IAlienObject.Discover()	(Inherited from SqlSmoObject)
IAlienObject.GetDomainRoot()	(Inherited from SqlSmoObject)
IAlienObject.GetParent()	(Inherited from SqlSmoObject)
IAlienObject.GetPropertyType(String)	Discovers type of property. (Inherited from SqlSmoObject)
IAlienObject.GetPropertyValue(String, Type)	Retrieves value for a given property. Throws if property is not found. (Inherited from SqlSmoObject)
IAlienObject.GetUrn()	(Inherited from SqlSmoObject)
IAlienObject.Resolve(String)	(Inherited from SqlSmoObject)
IAlienObject.SetObjectState(SfcObjectState)	Sets state of this object based on provided SfcObjectState. (Inherited from SqlSmoObject)
IAlienObject.SetPropertyValue(String, Type, Object)	Sets the value of given property, if it is writable. If property is not in property bag, reflection is used. Throws exception if the property is not found. (Inherited from SqlSmoObject)
ISfcPropertyProvider.GetPropertySet()	(Inherited from SqlSmoObject)
ISfcSupportsDesignMode.IsDesignMode	This object extend ISfcSupportsDesignMode.

Extension Methods

GetAssessmentItems(SqlSmoObject, String[])	Finds all available checks for given `smoObject`.
GetAssessmentResults(SqlSmoObject, IEnumerable<ICheck>)	Synchronously runs assessment for given `smoObject` and gives a IEnumerable<T> describing discovered issues. This method performs only given checks from `checks`.
GetAssessmentResults(SqlSmoObject, String[])	Synchronously runs assessment for given `smoObject` and gives a IEnumerable<T> describing discovered issues.
GetAssessmentResultsList(SqlSmoObject, IEnumerable<ICheck>)	Asynchronously runs assessment for given `smoObject` and gives a List<T> describing discovered issues. This method performs only given checks from `checks`.
GetAssessmentResultsList(SqlSmoObject, String[])	Asynchronously runs assessment for given `smoObject` and gives a List<T> describing discovered issues.
IsSupportedObject<T>(SqlSmoObject, ScriptingPreferences)	Checks if the specified type is supported by the ServerVersion and DatabaseEngineType of the root server for this object. If ScriptingPreferences are non-null will also check if specified type is supported by the ServerVersion and DatabaseEngineType of the target server.

Applies to

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