Clase Check
The Check object represents a SQL Server check constraint.
Jerarquía de herencia
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.Check
Espacio de nombres: Microsoft.SqlServer.Management.Smo
Ensamblado: Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)
Sintaxis
'Declaración
Public NotInheritable Class Check _
Inherits ScriptNameObjectBase _
Implements ICreatable, IDroppable, IRenamable, IMarkForDrop, _
IAlterable, IExtendedProperties, IScriptable, ISfcSupportsDesignMode
'Uso
Dim instance As Check
public sealed class Check : ScriptNameObjectBase,
ICreatable, IDroppable, IRenamable, IMarkForDrop, IAlterable,
IExtendedProperties, IScriptable, ISfcSupportsDesignMode
public ref class Check sealed : public ScriptNameObjectBase,
ICreatable, IDroppable, IRenamable, IMarkForDrop, IAlterable,
IExtendedProperties, IScriptable, ISfcSupportsDesignMode
[<SealedAttribute>]
type Check =
class
inherit ScriptNameObjectBase
interface ICreatable
interface IDroppable
interface IRenamable
interface IMarkForDrop
interface IAlterable
interface IExtendedProperties
interface IScriptable
interface ISfcSupportsDesignMode
end
public final class Check extends ScriptNameObjectBase implements ICreatable, IDroppable, IRenamable, IMarkForDrop, IAlterable, IExtendedProperties, IScriptable, ISfcSupportsDesignMode
El tipo Check expone los siguientes miembros.
Constructores
Nombre | Descripción | |
---|---|---|
Check() | Initializes a new instance of the Check class. | |
Check(SqlSmoObject, String) | Initializes a new instance of the Check class, which is owned by the specified parent object and has the specified name. |
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Propiedades
Nombre | Descripción | |
---|---|---|
CreateDate | Gets the date and time that the check constraint was created. | |
DateLastModified | Gets the date and time that the check constraint was last modified. | |
ExtendedProperties | Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property on the Check object. | |
ID | Gets the database ID value that uniquely identifies the check constraint. | |
IsChecked | Gets the Boolean property value that specifies whether the constraint was enabled without checking existing rows, so constraint may not hold for all rows | |
IsEnabled | Gets the Boolean property value that specifies whether the check constraint is enabled. | |
IsFileTableDefined | Gets a value that specifies whether the check constraint defines a file table. | |
IsSystemNamed | Gets the Boolean property value that specifies whether the check constraint was named automatically by Microsoft SQL Server or named by the database object creator. | |
Name | Gets or sets the name of the check constraint. (Invalida NamedSmoObject.Name.) | |
NotForReplication | Gets the Boolean property value that specifies whether the check constraint is available for replication or not. | |
Parent | Gets the SqlSmoObject object that is the parent of the Check object. | |
Properties | Gets a collection of Property objects that represent the object properties. (Se hereda de SqlSmoObject.) | |
State | Gets the state of the referenced object. (Se hereda de SmoObjectBase.) | |
Text | Gets or sets the Transact-SQL statement that defines the check constraint. | |
Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Se hereda de SqlSmoObject.) | |
UserData | Gets or sets user-defined data associated with the referenced object. (Se hereda de SmoObjectBase.) |
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Métodos
Nombre | Descripción | |
---|---|---|
Alter | Updates any Check object property changes on an instance of Microsoft SQL Server. | |
Create | Creates a check constraint on the instance of SQL Server as defined by the Check object. | |
Discover | Discovers a list of type Object. (Se hereda de SqlSmoObject.) | |
Drop | Drops the check constraint. | |
Equals | (Se hereda de Object.) | |
FormatSqlVariant | Formats an object as SqlVariant type. (Se hereda de SqlSmoObject.) | |
GetContextDB | Gets the context database that is associated with this object. (Se hereda de SqlSmoObject.) | |
GetDBName | Gets the database name that is associated with the object. (Se hereda de SqlSmoObject.) | |
GetHashCode | (Se hereda de Object.) | |
GetPropValue | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) | |
GetPropValueOptional | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) | |
GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) | |
GetServerObject | Gets the server of the SqlSmoObject object. (Se hereda de SqlSmoObject.) | |
GetType | (Se hereda de Object.) | |
Initialize() | Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.) | |
Initialize(Boolean) | Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.) | |
IsObjectInitialized | Verifies whether the object has been initialized. (Se hereda de SqlSmoObject.) | |
IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (Se hereda de SqlSmoObject.) | |
MarkForDrop | Marks the foreign key to be dropped next time its parent Table object is altered by the Alter method. | |
Refresh | Refreshes the script name. (Se hereda de ScriptNameObjectBase.) | |
Rename | Marks the foreign key to be dropped next time its parent Table object is altered by the Alter method. | |
Script() | Generates a Transact-SQL script that can be used to re-create the check constraint. | |
Script(ScriptingOptions) | Generates a Transact-SQL script that can be used to re-create the check constraint as specified by the script options. | |
SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (Se hereda de SqlSmoObject.) | |
ToString | Returns a String that represents the referenced object. (Se hereda de SqlSmoObject.) | |
Validate | Validates the state of an object. (Se hereda de SmoObjectBase.) |
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Eventos
Nombre | Descripción | |
---|---|---|
PropertyChanged | Represents the event that occurs when a property is changed. (Se hereda de SqlSmoObject.) | |
PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (Se hereda de SqlSmoObject.) |
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Implementaciones de interfaces explícitas
Nombre | Descripción | |
---|---|---|
IAlienObject.Discover | Discovers any dependencies. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.) | |
IAlienObject.GetDomainRoot | Returns the root of the domain. (Se hereda de SqlSmoObject.) | |
IAlienObject.GetParent | Gets the parent of this object. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.) | |
IAlienObject.GetPropertyType | Gets the type of the specified property. (Se hereda de SqlSmoObject.) | |
IAlienObject.GetPropertyValue | Gets the value of the specified property. (Se hereda de SqlSmoObject.) | |
IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.) | |
IAlienObject.Resolve | Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Se hereda de SqlSmoObject.) | |
IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (Se hereda de SqlSmoObject.) | |
IAlienObject.SetPropertyValue | Sets the property value. (Se hereda de SqlSmoObject.) | |
ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (Se hereda de SqlSmoObject.) | |
ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that indicates whether the object supports design mode. Solamente se identifica con fines informativos. No compatible. La compatibilidad con versiones posteriores no está garantizada. |
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Comentarios
To get Check object properties, users can be a member of the public fixed server role.
To set Check object properties and run the Alter method, users must have ALTER permission on the parent table or column, or be a member of the db_owner fixed database role.
To create a check constraint, users must have ALTER permission on the parent table, or be a member of the db_owner fixed database role.
To drop a check constraint, users must have ALTER permission on the parent table, or be a member of the db_owner fixed database role.
Thread Safety
Todos los miembros estáticos (compartidos en Microsoft Visual Basic) públicos de este tipo son seguros para operaciones multiproceso. No se garantiza que los miembros de instancia sean seguros para subprocesos.
Seguridad para subprocesos
Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.
Vea también
Referencia
Espacio de nombres Microsoft.SqlServer.Management.Smo