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Databases 属性

表示 Database 对象的集合。每个 Database 对象都表示对 SQL Server 的实例定义的数据库。

命名空间：  Microsoft.SqlServer.Management.Smo
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
<SfcObjectAttribute(SfcContainerRelationship.ObjectContainer, SfcContainerCardinality.ZeroToAny,  _
    GetType(Database), SfcObjectFlags.Design)> _
Public ReadOnly Property Databases As DatabaseCollection
    Get
用法
Dim instance As Server
Dim value As DatabaseCollection

value = instance.Databases

[SfcObjectAttribute(SfcContainerRelationship.ObjectContainer, SfcContainerCardinality.ZeroToAny, 
    typeof(Database), SfcObjectFlags.Design)]
public DatabaseCollection Databases { get; }

[SfcObjectAttribute(SfcContainerRelationship::ObjectContainer, SfcContainerCardinality::ZeroToAny, 
    typeof(Database), SfcObjectFlags::Design)]
public:
property DatabaseCollection^ Databases {
    DatabaseCollection^ get ();
}

[<SfcObjectAttribute(SfcContainerRelationship.ObjectContainer, SfcContainerCardinality.ZeroToAny, 
    typeof(Database), SfcObjectFlags.Design)>]
member Databases : DatabaseCollection

function get Databases () : DatabaseCollection

属性值

类型：Microsoft.SqlServer.Management.Smo. . :: . .DatabaseCollection
一个 DatabaseCollection 对象，该对象表示在 SQL Server 的实例上定义的所有数据库。

注释

Specific databases can be referenced by using this collection and specifying the name of the database. To create a new database, call the database constructor Database.

示例

Visual Basic

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
'Modify a property using the Databases, Tables, and Columns collections to reference a column.
srv.Databases("AdventureWorks2008R2").Tables("Person", "Person").Columns("ModifiedDate").Nullable = True
'Call the Alter method to make the change on the instance of SQL Server.
srv.Databases("AdventureWorks2008R2").Tables("Person", "Person").Columns("ModifiedDate").Alter()

PowerShell

$srv = new-object Microsoft.SqlServer.Management.Smo.Server("(local)")
$db = $srv.Databases.Item("AdventureWorks2008R2")
$tb = $db.Tables.Item("Person", "Person")
$col = $tb.Columns.Item("LastName")
$col.Nullable = $TRUE
$col.Alter()