使用捕获模式

适用于：SQL Server Azure SQL 数据库 azure Synapse Analytics Azure SQL 托管实例

SMO 程序可以捕获和记录由程序发出的等效 Transact-SQL 语句，或者除了由程序执行的语句之外。 通过使用 ServerConnection 对象，或者通过使用 ConnectionContext 对象的 Server 属性，启用捕获模式。

示例

若要使用所提供的任何代码示例，您必须选择创建应用程序所需的编程环境、编程模板和编程语言。 有关详细信息，请参阅 在 Visual Studio .NET 中创建 Visual C# SMO 项目。

在 Visual Basic 中启用捕获模式

此代码示例启用捕获模式，然后显示捕获缓冲区中保留的 Transact-SQL 命令。

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
'Set the execution mode to CaptureSql for the connection.
srv.ConnectionContext.SqlExecutionModes = SqlExecutionModes.CaptureSql
'Make a modification to the server that is to be captured.
srv.UserOptions.AnsiNulls = True
srv.Alter()
'Iterate through the strings in the capture buffer and display the captured statements.
Dim s As String
For Each s In srv.ConnectionContext.CapturedSql.Text
    Console.WriteLine(s)
Next
'Execute the captured statements.
srv.ConnectionContext.ExecuteNonQuery(srv.ConnectionContext.CapturedSql.Text)
'Revert to immediate execution mode. 
srv.ConnectionContext.SqlExecutionModes = SqlExecutionModes.ExecuteSql

在 Visual C# 中启用捕获模式

此代码示例启用捕获模式，然后显示捕获缓冲区中保留的 Transact-SQL 命令。

{   
// Connect to the local, default instance of SQL Server.   
Server srv;   
srv = new Server();   
// Set the execution mode to CaptureSql for the connection.   
srv.ConnectionContext.SqlExecutionModes = SqlExecutionModes.CaptureSql;   
// Make a modification to the server that is to be captured.   
srv.UserOptions.AnsiNulls = true;   
srv.Alter();   
// Iterate through the strings in the capture buffer and display the captured statements.   
string s;   
foreach ( String p_s in srv.ConnectionContext.CapturedSql.Text ) {   
   Console.WriteLine(p_s);   
}   
// Execute the captured statements.   
srv.ConnectionContext.ExecuteNonQuery(srv.ConnectionContext.CapturedSql.Text);   
// Revert to immediate execution mode.   
srv.ConnectionContext.SqlExecutionModes = SqlExecutionModes.ExecuteSql;   
}