pymongo find last one
... Query · Query for Null or Missing Fields · Iterate a Cursor in the mongo Shell ... $isoWeek (aggregation) · $isoWeekYear (aggregation) · $last (aggregation) ... , This is a rehash of the previous answer but it's more likely to work on different mongodb versions. db.collection.find().limit(1).sort($natural:-1}).
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 pymongo find last one 相關參考資料
$last (aggregation) — MongoDB Manual
Returns the value that results from applying an expression to the last document in a group of documents that share the same group by a field. Only meaningful ... https://docs.mongodb.com db.collection.findOne() — MongoDB Manual
... Query · Query for Null or Missing Fields · Iterate a Cursor in the mongo Shell ... $isoWeek (aggregation) · $isoWeekYear (aggregation) · $last (aggregation) ... https://docs.mongodb.com Get the latest record from mongodb collection - Stack Overflow
This is a rehash of the previous answer but it's more likely to work on different mongodb versions. db.collection.find().limit(1).sort($natural:-1}). https://stackoverflow.com How fetch latest records using find_one in pymongo - Stack ...
I got some solution but those are based on pure mongo query. I need help doing this with pymongo. Thanks In Advance, Robin. share. Share a link to this ... https://stackoverflow.com How to get the last N records in mongodb? - Stack Overflow
If I understand your question, you need to sort in ascending order. Assuming you have some id or date field called "x" you would do ... .sort() ... https://stackoverflow.com MongoDB query to get last inserted document? - Tutorialspoint
To get last inserted document, use sort() along with limit(1).Let us first create a collection with documents −> db.getLastInsertedDocument. https://www.tutorialspoint.com Mongodb Query: Latest record by date for each item - Stack ...
In above query group by device id and date, data, and gateway_id will be latest in each row. Output is- "result" : [ "_id" : 29, "gateway_id" : 1, ... https://stackoverflow.com PyMongo how to get the last item in the collection? - Stack ...
You can get the last item using find_one function. last_doc = db.docs.find_one( 'doc_id': doc_id}, sort=[( '_id', pymongo.DESCENDING )] ). https://stackoverflow.com Retrieve last document in a MongoDB using Pymongo and Flask
It turns out Pymongo has a different format for sort. You can't pass in a JSON object, you have to use a dict. Once I fixed that, it all works: cursor ... https://stackoverflow.com |