问题 I have a json msg coming from iotHub like: { "deviceId": "abc", "topic": "data", "data": { "varname1": [{ "t": "timestamp1", "v": "value1", "f": "respondFrame1" }, { "t": "timestamp2", "v": "value2", "f": "respondFrame2" }], "varname2": [{ "t": "timestamp1", "v": "value1", "f": "respondFrame1" }, { "t": "timestamp2", "v": "value2", "f": "respondFrame2" }] } } and want to store this by azure stream analytics job into a transact sql like this: ID | deviceId | varname | timestamp | respondFrame