我已启动并运行 SQL Server 2014，我正在尝试将特定数据库备份到 Azure 存储。我使用存储帐户名称作为身份和主键作为密码创建了一个凭据。然后我尝试将数据库备份到 URL，但出现以下错误：
TITLE: Microsoft SQL Server Management Studio
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Backup failed for Server '*****'. (Microsoft.SqlServer.SmoExtended)
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ADDITIONAL INFORMATION:
System.Data.SqlClient.SqlError: A nonrecoverable I/O error occurred on file "https://******.blob.core.windows.net/backupcontainer/demo_backup_2016_06_22_110957.bak:" Backup to URL received an exception from the remote endpoint. Exception Message: The remote server returned an error: (400) Bad Request.. (Microsoft.SqlServer.Smo)