DetachDatabase 方法 (String, Boolean, Boolean)

使用用于在分离数据库前更新统计信息的选项,将指定数据库从 SQL Server 的实例分离。

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

语法

声明
Public Sub DetachDatabase ( _
    databaseName As String, _
    updateStatistics As Boolean, _
    removeFulltextIndexFile As Boolean _
)
用法
Dim instance As Server
Dim databaseName As String
Dim updateStatistics As Boolean
Dim removeFulltextIndexFile As Boolean

instance.DetachDatabase(databaseName, _
    updateStatistics, removeFulltextIndexFile)
public void DetachDatabase(
    string databaseName,
    bool updateStatistics,
    bool removeFulltextIndexFile
)
public:
void DetachDatabase(
    String^ databaseName, 
    bool updateStatistics, 
    bool removeFulltextIndexFile
)
member DetachDatabase : 
        databaseName:string * 
        updateStatistics:bool * 
        removeFulltextIndexFile:bool -> unit 
public function DetachDatabase(
    databaseName : String, 
    updateStatistics : boolean, 
    removeFulltextIndexFile : boolean
)

参数

  • updateStatistics
    类型:System. . :: . .Boolean
    一个 Boolean 值,该值指定是否在分离前更新数据库的统计信息。
    如果为 True,则更新统计信息。
    如果为 False,则不更新统计信息。
  • removeFulltextIndexFile
    类型:System. . :: . .Boolean
    一个 Boolean 值,该值指定是否在分离数据库前删除全文索引文件。
    如果为 True,将删除全文索引文件。
    如果为 False,将不删除全文索引文件。

注释

The data and transaction log files of a database can be detached and then reattached to the same or another instance of SQL Server. Detaching and attaching a database is useful if you want to change the database to a different instance of SQL Server on the same computer, or if you want to move the database.

示例

Visual Basic

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
Dim owner As String
Dim logstr as String
Dim datastr as String
owner = srv.Databases("AdventureWorks2008R2").Owner

'Detach the AdventureWorks2008R2 database.
srv.DetachDatabase("AdventureWorks2008R2", False, False)

'Display information about the detached database.
Dim d As DataTable
Datastr = "C:\Program Files\Microsoft SQL Server"
Datastr = datastr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Data.mdf"
Logstr = "C:\Program Files\Microsoft SQL Server"
Logstr = datastr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Log.ldf"
d = srv.DetachedDatabaseInfo(datastr)
Dim r As DataRow
Dim c As DataColumn
For Each r In d.Rows
    Console.WriteLine("==========================")
    For Each c In r.Table.Columns
        Console.WriteLine(c.ColumnName + " = " + r[c].ToString)
    Next
Next

'Check whether the file is a detached primary file.
Console.WriteLine(srv.IsDetachedPrimaryFile(datastr))

'Attach the database
Dim sc As StringCollection
sc = New StringCollection
sc.Add(datastr)
sc.Add(logstr)
srv.AttachDatabase("AdventureWorks2008R2", sc, owner, AttachOptions.None)

PowerShell

$srv = new-object Microsoft.SqlServer.Management.Smo.Server("(local)")
$db = New-Object Microsoft.SqlServer.Management.Smo.Database
$db = $srv.Databases.Item("AdventureWorks2008R2")
$owner = $db.Owner
$srv.DetachDatabase("AdventureWorks2008R2", $FALSE, $FALSE)
$datastr = "C:\Program Files\Microsoft SQL Server"
$datastr = $datastr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Data.mdf"
$logstr = "C:\Program Files\Microsoft SQL Server"
$logstr = $logstr + "\MSSQL10_50\MSSQL\Data\AdventureWorks2008R2_Log.ldf"
$d = $srv.DetachedDatabaseInfo($datastr)
foreach ($r in $d.Rows)
{
   Write-Host "=========================="
   Foreach ($c in $d.Columns)
   {
      Write-Host $c.ColumnName "=" $r[$c].ToString()
   }
}
Write-Host $srv.IsDetachedPrimaryFile($datastr)
$sc = new-object Systems.Collections.Specialized.StringCollection
$sc.Add($datastr)
$sc.Add($logstr)
$srv.AttachDatabase("AdventureWorks2008R2", $sc, $owner, [Microsoft.SqlServer.Management.Smo.AttachOptions]::None)