mongodb findone last
Just for additional information you can do this in the MongoDB shell with .... function(err,doc) if (err) throw err; console.log("FindOne last:-n%s", ...,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 ... ,This will give you one last document for a collection db.collectionName.findOne(}, sort:$natural:-1}}). $natural:-1 means order opposite of the one that records ... ,if you want only one last record: db.yourcollectionname.findOne($query: }, $orderby: $natural : -1}}). Note: In place of $natural you can use one of the columns ... ,To be clear, natural order is not insertion order, except in the case of capped collections. You will need another criteria to sort by. Assuming you are using the ... ,But when I do that in the meteor mongo shell I get errors. ... findOne(selector) only returns one result from the collection based on the selector ...
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 mongodb findone last 相關參考資料
Can findOne match first or last? - Stack Overflow
Just for additional information you can do this in the MongoDB shell with .... function(err,doc) if (err) throw err; console.log("FindOne last:-n%s", ... https://stackoverflow.com db.collection.findOne() — MongoDB Manual
If you specify a projection parameter, findOne() returns a document that only contains the projection fields. The _id field is always included unless you explicitly ... https://docs.mongodb.com Get the latest record from mongodb collection - Stack Overflow
This will give you one last document for a collection db.collectionName.findOne(}, sort:$natural:-1}}). $natural:-1 means order opposite of the one that records ... https://stackoverflow.com How to get the last N records in mongodb? - Stack Overflow
if you want only one last record: db.yourcollectionname.findOne($query: }, $orderby: $natural : -1}}). Note: In place of $natural you can use one of the columns ... https://stackoverflow.com Java MongoDB FindOne to get last inserted record - Stack Overflow
To be clear, natural order is not insertion order, except in the case of capped collections. You will need another criteria to sort by. Assuming you are using the ... 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. ... findOne(selector) only returns one result from the collection based on the selector ... https://forums.meteor.com |