pymongo find_one sort
If multiple documents match filter, a sort can be applied. >>> for doc in db.test.find('x': 1}): ... print(doc) ... u'x': 1, u'_id': 0} u'x': 1, u'_id': 1} u'x': 1, u'_id': 2} >>> d, Entry has '_id', 'title', 'post', 'edits 'editor', 'email', 'written'}', 'category', and 'zone.' using pymongo, all I want is to get the ONE most recently edited (i.e., entry.edits.w, db.Account.find().sort("UserName") --默认为升序 >>> db.Account.find().sort("UserName",pymongo.ASCENDING) --升序 >>> db.Account.find().sort("UserName",pymongo.DESCENDING) --降序. 聚集查询结果多列排序. >>> db.Account.f, .sort() , in pymongo, takes key and direction as parameters. So if you want to sort by, let's say, id then you should .sort("_id", 1). For multiple fields: .sort([("field1", pymongo.ASCENDING), ("field2", pymongo.DESCEND, According to the documentation, regardless of which goes first in your chain of commands, sort() would be always applied before the limit() . You can also study the .explain() results of your query and look at the execution stages - you will find that th, In your first query, in the sort function you're passing one argument ("position,pymongo.DESCENDING") , when you should be passing two arguments ("position", pymongo.DESCENDING) . Be sure to mind your quotation marks.,This is not the correct format of parameters for the sort function. The correct syntax would look something like this: db.posts.find(...).sort('date',pymongo.DESCENDING). Here is a link to the relevant documentation for the sort function: http://a
| 相關軟體 MongoDB 資訊 | |
|---|---|
 pymongo find_one sort 相關參考資料
collection – Collection level operations — PyMongo 3.6.1 documentation
If multiple documents match filter, a sort can be applied. >>> for doc in db.test.find('x': 1}): ... print(doc) ... u'x': 1, u'_id': 0} u'x': 1, u'_id'... http://api.mongodb.com how do I sort using find_one - Google Groups
Entry has '_id', 'title', 'post', 'edits 'editor', 'email', 'written'}', 'category', and 'zone.' using pymongo, all I want is t... https://groups.google.com PyMongo基本使用- libingql - 博客园
db.Account.find().sort("UserName") --默认为升序 >>> db.Account.find().sort("UserName",pymongo.ASCENDING) --升序 >>> db.Account.find().sort("UserName",pymongo.... https://www.cnblogs.com python - How to sort mongodb with pymongo - Stack Overflow
.sort() , in pymongo, takes key and direction as parameters. So if you want to sort by, let's say, id then you should .sort("_id", 1). For multiple fields: .sort([("field1", p... https://stackoverflow.com python - limit() and sort() order pymongo and mongodb - Stack Overflow
According to the documentation, regardless of which goes first in your chain of commands, sort() would be always applied before the limit() . You can also study the .explain() results of your query a... https://stackoverflow.com python - pymongo sort and find_one issue - Stack Overflow
In your first query, in the sort function you're passing one argument ("position,pymongo.DESCENDING") , when you should be passing two arguments ("position", pymongo.DESCENDIN... https://stackoverflow.com python - pymongo sorting by date - Stack Overflow
This is not the correct format of parameters for the sort function. The correct syntax would look something like this: db.posts.find(...).sort('date',pymongo.DESCENDING). Here is a link to the... https://stackoverflow.com |