无法使用SMO在SQL Azure数据库中创建表

Question

由于USE [dbname]SQL Azure不支持,我试图通过在连接字符串中指定数据库名称然后执行CREATE TABLE...脚本来连接到我的SQL Azure数据库.但是,这会因System.Data.SqlClient.SqlException "在数据库'master'中拒绝CREATE TABLE权限而失败." 我在这里做错了它试图对主人执行这个陈述？

这是一个示例C#代码:

string connectionString = @"Data Source=tcp:MYSERVER.database.windows.net;Initial Catalog=MYDATABASE;Integrated Security=False;User ID=USER@MYSERVER;Password=PWD;Connect Timeout=60;Encrypt=True;TrustServerCertificate=True";


using (SqlConnection connection = new SqlConnection(connectionString))
{
   connection.Open();
   ServerConnection serverConnection = new ServerConnection(connection);
   Server server = new Server(serverConnection);
   server.ConnectionContext.ExecuteNonQuery("CREATE TABLE New (NewId int)");
}

Answer 1

事实证明我的代码存在多个问题.在SQL Azure中,SMO仍然很古怪.所以,发布我的调查结果以防有人正在经历同样的艰难道路.

1. 每次获得如下数据库对象时,SMO都会在后台切换默认数据库:

   
   Database database = server.Databases[databaseName]
   

   初始目录成为Master,您可以在server.ConnectionContext.ConnectionString中更改的连接字符串中看到它("normal"SQL不会这样做).对此的解决方案是每次将数据库切换到Master时打开一个新连接(并关闭旧连接),因为一旦建立连接就无法更改数据库名称(显然,只有SQL Azure才能这样做).
2. 打开初始化ServerConnection和Server的连接有时会与第一个问题一起失败.这将给出一个模糊的错误消息,指出登录失败,提供guid和时间戳要求联系客户支持.废话.解决此问题的方法是不打开连接,让ServerConnection在Server对象初始化期间打开它:
3. 最后,SQL Azure在Server对象上不喜欢Alter().删除了所有Alter的.

所以最终的代码片段看起来像这样:

       string connectionString = "Server=tcp:XXXXX.database.windows.net;Database=XXXXXX;User ID=XXXXXX;Password=XXXXX;Trusted_Connection=False;Encrypt=True;trustservercertificate=true";
       SqlConnection connection = new SqlConnection(connectionString);
       // do not explicitly open connection, it will be opened when Server is initialized
       // connection.Open();

       ServerConnection serverConnection = new ServerConnection(connection);
       Server server = new Server(serverConnection);

       // after this line, the default database will be switched to Master
       Database database = server.Databases["MyDatabase"];

       // you can still use this database object and server connection to 
       // do certain things against this database, like adding database roles 
       // and users      
       DatabaseRole role = new DatabaseRole(database, "NewRole");
       role.Create();

       // if you want to execute a script against this database, you have to open 
       // another connection and re-initiliaze the server object
       server.ConnectionContext.Disconnect();

       connection = new SqlConnection(connectionString);
       serverConnection = new ServerConnection(connection);
       server = new Server(serverConnection);
       server.ConnectionContext.ExecuteNonQuery("CREATE TABLE New (NewId int)");

如果有人感兴趣的话,这里是第2点的模糊例外:

Microsoft.SqlServer.Management.Common.ConnectionFailureException was unhandled
  Message=Failed to connect to server .
  Source=Microsoft.SqlServer.Smo
  StackTrace:
       at Microsoft.SqlServer.Management.Smo.DatabaseCollection.get_Item(String name)
       InnerException: System.Data.SqlClient.SqlException
       Message=Login failed for user 'XXXXXXXX'.
       This session has been assigned a tracing ID of 'XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXX'.  Provide this tracing ID to customer support when you need assistance.
       Source=.Net SqlClient Data Provider
       ErrorCode=-2146232060
       Class=14
       LineNumber=65536
       Number=18456
       Procedure=""
       Server=tcp:XXXXXXXX.database.windows.net
       State=1
       StackTrace:
            at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
            at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
            at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
            at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
            at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject)
            at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout)
            at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
            at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
            at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
            at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
            at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
            at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
            at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
            at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
            at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
            at System.Data.SqlClient.SqlConnection.Open()
            at Microsoft.SqlServer.Management.Common.ConnectionManager.InternalConnect(WindowsIdentity impersonatedIdentity)
            at Microsoft.SqlServer.Management.Common.ConnectionManager.Connect()