首先，确认第二个管道是否已在相同的订阅中创建，确保其与目标SQL使用的专用终端在同一区域中。其次，确保您已为第二个管道指定正确的SQL连接字符串和凭据。最后，确保为第二个管道进行的任何其他配置都是正确的。以下是示例代码，用于确保第二个管道可成功连接SQL：

{
    "name": "[concat('CopyFromSQLToBlob', uniqueString(resourceGroup().id))]",
    "properties": {
        "activities": [
            {
                "type": "Copy",
                "inputs": [
                    {
                        "referenceName": "MyLinkedServiceBlobStorage",
                        "type": "DatasetReference"
                    }
                ],
                "outputs": [
                    {
                        "referenceName": "MyLinkedServiceSQLDB",
                        "type": "DatasetReference"
                    }
                ],
                "typeProperties": {
                    "source": {
                        "type": "SqlServerQuery",
                        "query": "SELECT * FROM myTable"
                    },
                    "sink": {
                        "type": "BlobSink",
                        "writeBatchSize": 0,
                        "writeBatchTimeout": "00:00:00"
                    }
                },
                "policy": {
                    "timeout": "1.00:00:00",
                    "concurrency": 1,
                    "executionPriorityOrder": "NewestFirst",
                    "style": "StartOfInterval",
                    "retry": 0,
                    "longRetry": 0,
                    "longRetryInterval": "00:02:00",
                    "secureOutput": false,
                    "secureInput": false
                },
                "scheduler": {
                    "frequency": "Day",
                    "interval": 1
                },
                "name": "MyCopyActivity"
            }
        ]
    },
    "type": "Microsoft.DataFactory/factories/pipelines"
}