使用同義字
同義字是結構描述範圍物件的替代名稱。在 SMO 中,同義字是由 Synonym 物件表示。Synonym 物件是 Database 物件的子系。這表示同義字只有在其定義所在的資料庫範圍內才有效。不過,同義字可以參考另一個資料庫或 SQL Server 遠端執行個體上的物件。
已具有給定替代名稱的物件也稱為基底物件。Synonym 物件的名稱屬性是為基底物件所提供的替代名稱。
範例
在下列的程式碼範例中,您必須選取用於建立應用程式的程式設計環境、程式設計範本和程式設計語言。如需詳細資訊,請參閱<如何:在 Visual Studio .NET 中建立 Visual Basic SMO 專案>和<如何:在 Visual Studio .NET 中建立 Visual C# SMO 專案>。
在 Visual Basic 中建立同義字
此程式碼範例示範如何為結構描述範圍物件建立同義字或替代名稱。用戶端應用程式可以透過同義字使用單一參考來參考基底物件,而不是使用多重部分名稱來參考基底物件。
'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server()
'Reference the AdventureWorks database.
Dim db As Database
db = srv.Databases("AdventureWorks")
'Define a Synonym object variable by supplying the parent database, name, and schema arguments in the constructor.
'The name is also a synonym of the name of the base object.
Dim syn As Synonym
syn = New Synonym(db, "Shop", "Sales")
'Specify the base object, which is the object on which the synonym is based.
syn.BaseDatabase = "AdventureWorks"
syn.BaseSchema = "Sales"
syn.BaseObject = "Store"
syn.BaseServer = srv.Name
'Create the synonym on the instance of SQL Server.
syn.Create()
在 Visual C# 中建立同義字
此程式碼範例示範如何為結構描述範圍物件建立同義字或替代名稱。用戶端應用程式可以透過同義字使用單一參考來參考基底物件,而不是使用多重部分名稱來參考基底物件。
{
//Connect to the local, default instance of SQL Server.
Server srv = default(Server);
srv = new Server();
//Reference the AdventureWorks database.
Database db = default(Database);
db = srv.Databases("AdventureWorks");
//Define a Synonym object variable by supplying the
//parent database, name, and schema arguments in the constructor.
//The name is also a synonym of the name of the base object.
Synonym syn = default(Synonym);
syn = new Synonym(db, "Shop", "Sales");
//Specify the base object, which is the object on which
//the synonym is based.
syn.BaseDatabase = "AdventureWorks";
syn.BaseSchema = "Sales";
syn.BaseObject = "Store";
syn.BaseServer = srv.Name;
//Create the synonym on the instance of SQL Server.
syn.Create();
}