mongodb findone sort
In the mongo shell, use cursor. sort() instead. The $orderby operator sorts the results of a query in ascending or descending order. These examples return all documents in the collection named collection sorted by the age field in descending order. , As example I want to query items by title, sort them by _id and get first of them. ... .org/java/current/com/mongodb/DBCollection.html#findOne.,Return a single document from a collection or view. If multiple documents satisfy the query, this method returns the first document according to the query's sort ... ,If you specify a projection parameter, findOne() returns a document that only contains the projection fields. The _id field is always included unless you explicitly ... , To replicate using findOne with the sort() method instead of the deprecated $orderby , you can call .next() on the cursor at the end of this chain. If array of results is needed - just add .toArray() , like this: db.collection.find(}).sort('key':, 遇到这种情况，就可以通过find(findOne相同)的第二个参数来指定想要的键。 ... db.users.find(},name:1,age:1,_id:0}).sort(age:1}) // "name" ..., If you need an oldest record, use db.collection.find().sort( created: *1* }).limit(1)., sort takes an array of sort preferences, default being 'asc'. findOne will only ever return the first document that matches the query criteria (docs.mongodb.com/manual/reference/method/db.collection.findOne/…), so you won't be able to pre-sor, Short answer - you can't. If you want your code to be synchronous you should consider using some other tool instead of node.js . All I/O ..., findOne(}, sort: _id: -1 }}, limit: 1}). But when I do that in the meteor mongo shell I get errors. However, when I do my first option I always only ...
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 mongodb findone sort 相關參考資料
$orderby — MongoDB Manual
In the mongo shell, use cursor. sort() instead. The $orderby operator sorts the results of a query in ascending or descending order. These examples return all documents in the collection named collect... https://docs.mongodb.com Allow sort in FindOne · Issue #194 · bgueroutjongo · GitHub
As example I want to query items by title, sort them by _id and get first of them. ... .org/java/current/com/mongodb/DBCollection.html#findOne. https://github.com collection.findOne() — MongoDB Stitch
Return a single document from a collection or view. If multiple documents satisfy the query, this method returns the first document according to the query's sort ... https://docs.mongodb.com db.collection.findOne() — MongoDB Manual
If you specify a projection parameter, findOne() returns a document that only contains the projection fields. The _id field is always included unless you explicitly ... https://docs.mongodb.com MongoDB difference between $orderby and Sort - Stack Overflow
To replicate using findOne with the sort() method instead of the deprecated $orderby , you can call .next() on the cursor at the end of this chain. If array of results is needed - just add .toArray()... https://stackoverflow.com MongoDB数据查询find和findOne - 编程列车
遇到这种情况，就可以通过find(findOne相同)的第二个参数来指定想要的键。 ... db.users.find(},name:1,age:1,_id:0}).sort(age:1}) // "name" ... https://www.codelieche.com MySQL order by in mongodb findOne() - Stack Overflow
If you need an oldest record, use db.collection.find().sort( created: *1* }).limit(1). https://stackoverflow.com Sorting mongodb client findOne() in node - Stack Overflow
sort takes an array of sort preferences, default being 'asc'. findOne will only ever return the first document that matches the query criteria (docs.mongodb.com/manual/reference/method/db.col... https://stackoverflow.com Synchronous findOne with sort() in mongoose mongdb - Stack Overflow
Short answer - you can't. If you want your code to be synchronous you should consider using some other tool instead of node.js . All I/O ... https://stackoverflow.com [SOLVED] Getting the last document added to a collection - help ...
findOne(}, sort: _id: -1 }}, limit: 1}). But when I do that in the meteor mongo shell I get errors. However, when I do my first option I always only ... https://forums.meteor.com |