Classe DataType
The DataType object represents a SQL Server data type.
Hiérarchie d'héritage
System.Object
Microsoft.SqlServer.Management.Smo.DataType
Espace de noms : Microsoft.SqlServer.Management.Smo
Assembly : Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)
Syntaxe
'Déclaration
Public Class DataType _
Implements IXmlSerializable
'Utilisation
Dim instance As DataType
public class DataType : IXmlSerializable
public ref class DataType : IXmlSerializable
type DataType =
class
interface IXmlSerializable
end
public class DataType implements IXmlSerializable
Le type DataType expose les membres suivants.
Constructeurs
| Nom | Description | |
|---|---|---|
.gif "Méthode publique") |
DataType() | Initializes a new instance of the DataType class. |
|
DataType(SqlDataType) | Initializes a new instance of the DataType class based on a specified SQL Server data type. |
|
DataType(UserDefinedDataType) | Initializes a new instance of the DataType class based on a specified user-defined data type. |
|
DataType(UserDefinedTableType) | Initializes a new instance of the DataType class based on a specified user-defined table type. |
|
DataType(UserDefinedType) | Initializes a new instance of the DataType class based on a specified user-defined type. |
|
DataType(XmlSchemaCollection) | Initializes a new instance of the DataType class based on a specified XML schema collection. |
|
DataType(SqlDataType, Int32) | Initializes a new instance of the DataType class based on a specified SQL Server data type with specified precision or maximum length. |
|
DataType(SqlDataType, String) | Initializes a new instance of the DataType class based on a specified SQL Server data type with the specified type. |
|
DataType(SqlDataType, Int32, Int32) | Initializes a new instance of the DataType class based on a specified SQL Server data type with the specified precision and scale. |
|
DataType(SqlDataType, String, String) | Initializes a new instance of the DataType class based on a specified SQL Server data type with the specified type and schema. |
Haut de la page
Propriétés
| Nom | Description | |
|---|---|---|
.gif "Propriété publique") .gif "Membre statique") |
BigInt | Gets a data type that specifies the BigInt definition used in the data type. |
|
Bit | Gets a data type that specifies the Bit definition used in the data type. |
|
Date | The Date property returns a Date data type. |
|
DateTime | Gets a data type that specifies the DateTime definition used in the data type. |
|
Float | Gets a data type that specifies the Float definition used in the data type. |
|
Geography | The geography data type represents data in a round-earth coordinate system. The SQL Server geography data type stores ellipsoidal (round-earth) data, such as GPS latitude and longitude coordinates. |
|
Geometry | The Geometry property contains spatial data that represents information about the physical location and shape of geometric objects. |
|
HierarchyId | The HierarchyId property is used to identify a position in a hierarchy. |
|
Image | Gets a data type that specifies the Image definition used in the data type. |
|
Int | Gets a data type that specifies the Int definition used in the data type. |
|
MaximumLength | Gets the maximum length of the data type. |
|
Money | Gets a data type that specifies the Money definition used in the data type. |
|
Name | Gets the name of the data type. |
|
NText | Gets a data type that specifies the NText definition used in the data type. |
|
NumericPrecision | Gets or sets the numeric precision of the data type. |
|
NumericScale | Gets or sets the numeric scale of the data type. |
|
NVarCharMax | Gets a data type that specifies the VarCharMax definition used in the data type. |
|
Real | Gets a data type that specifies the Money definition used in the data type. |
|
Schema | Gets or sets the schema of the data type. |
|
SmallDateTime | Gets a data type that specifies the SmallDateTime definition used in the data type. |
|
SmallInt | Gets a data type that specifies the SmallInt definition used in the data type. |
|
SmallMoney | Gets a data type that specifies the SmallMoney definition used in the data type. |
|
SqlDataType | Gets a data type that specifies the SqlDataType definition used in the data type. |
|
SysName | Gets a data type that specifies the SysName definition used in the data type. |
|
Text | Gets a data type that specifies the Text definition used in the data type. |
|
Timestamp | Gets a data type that specifies the TimeStamp definition used in the data type. |
|
TinyInt | Gets a data type that specifies the TinyInt definition used in the data type. |
|
UniqueIdentifier | Gets a data type that specifies the UniqueIdentifier definition used in the data type. |
|
VarBinaryMax | Gets a data type that specifies the VarBinaryMax definition used in the data type. |
|
VarCharMax | Gets a data type that specifies the VarCharMax definition used in the data type. |
|
Variant | Gets a data type that specifies the Variant definition used in the data type. |
|
XmlDocumentConstraint | Gets or sets a value that indicates how an XML document is formatted. |
Haut de la page
Méthodes
| Nom | Description | |
|---|---|---|
|
Binary | Returns an object that represents the specified type. |
|
Char | Returns an object that represents the specified type. |
|
DateTime2 | datetime2 is an extension of the existing datetime type. It has a large date range and large default fractional precision. It has a length of at least 19 positions. |
|
DateTimeOffset | Returns values for year, month, day, valid time of day between 00:00:00 and 23:59:59:9999999 and offset, in hours, from UTC. It has a length of at least 25 positions. |
|
Decimal | Returns an object that represents the specified type. |
|
Equals(Object) | Determines whether the specified object is considered equal to the current data type. (remplace Object.Equals(Object).) |
|
Equals(DataType) | Determines whether the specified data types are considered equal. |
.gif "Méthode protégée") |
Finalize | (hérité de Object.) |
|
GetHashCode | This method supports the SQL Server infrastructure and is not intended to be used directly from your code. (remplace Object.GetHashCode().) |
|
GetType | (hérité de Object.) |
|
MemberwiseClone | (hérité de Object.) |
|
NChar | Returns an object that represents the specified type. |
|
Numeric | Returns an object that represents the specified type. |
|
NVarChar | Returns an object that represents the specified type. |
|
Time | Returns values for any valid time of day between 00:00:00 and 23:59:59:9999999. It has a length of at least eight positions and contains the time in hours, minutes, seconds and fractional seconds. |
|
ToString | Returns the object in string format. (remplace Object.ToString().) |
|
UserDefinedDataType(String) | Returns an object that represents the specified type. |
|
UserDefinedDataType(String, String) | Returns an object that represents the specified type with the specified schema. |
|
UserDefinedTableType(String) | Returns an object that represents the specified type. |
|
UserDefinedTableType(String, String) | Returns an object that represents the specified type with the specified schema. |
|
UserDefinedType(String) | Returns an object that represents the specified type. |
|
UserDefinedType(String, String) | Returns an object that represents the specified type with the specified schema. |
|
VarBinary | Returns an object that represents the specified type. |
|
VarChar | Returns an object that represents the specified type. |
|
Xml(String) | Returns an object that represents the specified type. |
|
Xml(String, String) | Returns an object that represents the specified type and with the specified schema. |
|
Xml(String, String, XmlDocumentConstraint) | Returns an object that represents the specified type, schema and XML document constraint. |
Haut de la page
Implémentations d'interfaces explicites
| Nom | Description | |
|---|---|---|
.gif "Implémentation d'interface explicite") .gif "Méthode privée") |
IXmlSerializable.GetSchema | Not implemented. |
|
IXmlSerializable.ReadXml | Deserializes the DAC type properties from an XML stream. Identifié à titre d'information uniquement. Non pris en charge. La compatibilité future n'est pas garantie.. |
|
IXmlSerializable.WriteXml | Serializes the data type properties to an XML stream. Identifié à titre d'information uniquement. Non pris en charge. La compatibilité future n'est pas garantie.. |
Haut de la page
Notes
The DataType object is used to specify the type of data that is associated primarily with columns and parameters.
Thread Safety
Tout membre statique public (Partagé dans Microsoft Visual Basic) de ce type est sûr dans le cadre des opérations à plusieurs threads. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.
Exemples
Utilisation des types de données
Sécurité des threads
Tous les membres publics static (Shared dans Visual Basic) de ce type sont thread-safe. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.