我已经在本地创建了我的自签名证书并上传到 Azure Key Vault。这样我就可以将它用于我的始终加密（Azure SQL DB 中的列加密）
最初我遇到了Purge 问题并在这里解决了
继续我在执行加密操作时遇到错误
这是我的日志文件
Jul 6 2017 16:01:16: Log opened. TraceLevel:Informational
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message:Source database settings.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message: Source server name: xxx.database.windows.net.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message: Source database name: db.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message:Create new encryption key.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message: New encryption key: CEK_Auto1.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message:Encrypt column blobname.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message: Table name: filenames.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message: Encryption key name: CEK_Auto1.
Jul 6 2017 16:01:37 [Informational] WizardSummary: Message: Encryption type: Deterministic.
Jul 6 2017 16:01:38 [Informational] WorkitemExecution: Message:Work item 'Generate new column encryption key CEK_Auto1' started..
Jul 6 2017 16:01:38 [Informational] TaskUpdates: Message:Task: 'Generate new column encryption key CEK_Auto1' -- Status: 'Started' -- Details: 'Task 'Generate new column encryption key CEK_Auto1' started ....'.
Jul 6 2017 16:01:40 [Informational] TaskUpdates: Message:Task: 'Generate new column encryption key CEK_Auto1' -- Status: 'Completed' -- Details: 'Task 'Generate new column encryption key CEK_Auto1' completed'.
Jul 6 2017 16:01:40 [Informational] WorkitemExecution: Message:Work item 'Generate new column encryption key CEK_Auto1' stopped..
Jul 6 2017 16:01:40 [Informational] WorkitemExecution: Message:Work item 'Generate new column encryption key CEK_Auto1' completed successfully!.
Jul 6 2017 16:01:40 [Informational] WorkitemExecution: Message:Work item 'Performing encryption operations' started..
Jul 6 2017 16:01:40 [Informational] TaskUpdates: Message:Task: 'Performing encryption operations' -- Status: 'Started' -- Details: 'Task 'Performing encryption operations' started ....'.
Jul 6 2017 16:02:15 [Informational] TaskUpdates: Message:Task: 'Performing encryption operations' -- Status: 'Failed' -- Details: 'Task failed due to following error: Unknown external data source type'.
Jul 6 2017 16:02:15 [Informational] WorkitemExecution: Message:Work item 'Performing encryption operations' stopped..
Jul 6 2017 16:02:15 [Error] WorkitemExecution: Message:Work item 'Performing encryption operations' did not complete. Details: Unknown external data source type.
Jul 6 2017 16:02:15 [Informational] Log Closed: Message:Job processing completed.
主要错误是未知的外部数据源类型
更新
我可以使用标准定价层的其他 Azure DB 克服此错误