mongodb find last

Reference >; mongo Shell Methods >; Collection Methods >; db.collection.findOne(). db.collection.findOne()¶. On...

mongodb find last

Reference >; mongo Shell Methods >; Collection Methods >; db.collection.findOne(). db.collection.findOne()¶. On this page. Definition; Examples. Definition¶. ,Use sort and limit : db.col.find().sort("datetime": -1}).limit(1).

相關軟體 MongoDB 資訊

MongoDB
MongoDB 是一個免費且開放源碼的跨平檯面向文檔的數據庫程序。分類為 NoSQL 數據庫程序,MongoDB 使用類似 JSON 的文檔與模式。它為使用 MongoDB 包括數據庫開發人員和 DBA 的任何人提供了豐富的 GUI 工具。主要功能包括:全功能嵌入 MongoDB Shell,用戶友好的 Map-Reduce 操作編輯器,創建 / 刪除數據庫,管理集合及其索引的能力,用戶友好的 G... MongoDB 軟體介紹

mongodb find last 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

Reference >; mongo Shell Methods >; Collection Methods >; db.collection.findOne(). db.collection.findOne()¶. On this page. Definition; Examples. Definition¶.

https://docs.mongodb.com

Get latest MongoDB record by field of datetime - Stack Overflow

Use sort and limit : db.col.find().sort("datetime": -1}).limit(1).

https://stackoverflow.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

Getting last row in mongodb - Stack Overflow

If you want to get last record inserted in the table, then sort by ObjectId in descending order: sorting on an _id field that stores ObjectId values is roughly ...

https://stackoverflow.com

How can I get last 50 documents in mongoDB? - Stack Overflow

this should do the thing: db.collection.find().sort($natural: -1}).limit(50);.

https://stackoverflow.com

How to find into mongodb to the last item of an array? - Stack ...

I know this question is old, but I found it on google after answering a similar new question. So I thought this deserved the same treatment. You can avoid the ...

https://stackoverflow.com

How to get the last N records in mongodb? - Stack Overflow

By default, the find() operation will get the records from beginning. How can I get the last N records in mongodb? Edit: also I want the returned result ordered from less recent to most recent, not th...

https://stackoverflow.com

[SOLVED] Getting the last document added to a collection - help ...

But when I do that in the meteor mongo shell I get errors. ... Anyway, I figure I use the helper to get the last document, then increment the value ...

https://forums.meteor.com