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    i'm trying a simple query in Mongo which in MySQL would look like this. select * from emails where bounceCount ... the sentCount in that shell? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    My data mongoDB: >db.CUSTOMER.find() {"Name": "A", "CreatedDate": "Wed Jan 29 2014"} {"Name": "B", " ... I can do to make it works? Thank you See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'd like to return distinct fields in my collection. I know these are the docs for mongo operators, but I'm not ... "myField": 1 }); }); See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    My approach would be to get the document instance, and create a new one from the instance fields. I am sure there is a better way to do it. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm using the Mongo PHP extension. My data looks like: users { "_id": "4ca30369fd0e910ecc000006", "login": "user11", ... u ON n.user_id = u.id See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    On my Ubuntu EC2 I host an application using docker containers. db data and upload data is being stored in ... this? Thank you in advance. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm looking for a way to sort a nested array of objects. Here's an example: { answers : [ { name : ' ... how can I sort them in ascending order? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a query below. I want get items between 4 and 6 so only a:1 should match because it has the value ... }}); > No documents were returned. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is it possible to express the following SQL query in mongodb: SELECT * FROM table AS t WHERE t.field1 > t. ... records even if we need only one See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm trying to save date (using C# official driver): val = DateTime.Parse(value).Date; //Here date is {11/11/ ... to save only the date I want? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to select the most recent documents from a collection. The answer from this question mongodb: how to ... userLanguagePref: "Cantonese" } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a set of documents in Mongo. Say: [ { summary:"This is good" }, { summary:"This is bad" }, ... I understand it to some degree already :) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a mongodb replica set with a lot of databases, collections & indexes. We did a lot of refactor and optimization and, ... ); } } } } } } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm relatively new to Node.js and Mongo/Mongoose, and I'm having a very difficult time troubleshooting a specific ... .emit (events.js:96:17) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a collection of errors, so that every error carries a date field. How can I aggregate/count/group ... smart projection should be applied. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've been trying to use mongo with some data imported, but I'm not able to use it properly with my ... object to obtain my desired result? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is this possible to write the query result to the file from mongo js script. I have searched a lot, but I didn't find ... to file ????<br/> } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What are the key differences to do map/reduce work on MongoDB using Hadoop map/reduce vs built-in map/reduce of ... on data stored in mongodb? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    2 days old with Mongo and I have a SQL background so bear with me. As with mysql, it is very convenient to be ... of a question I posted on SO See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How to search for documents in a collection that are missing a certain field in MongoDB? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Looking down the road at sharding, we would like to be able to have multiple mongos instances. The ... all the software installed. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How do I remove u chars from the following dictionary? {u'name': u'A', u'primary_key': 1} This data is coming ... name': 'A', 'primary_key': 1} See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have installed mongo-10gen mongo-10gen-server on Linux CentOS server. I followed the steps from Link. I ... space for journals, terminating See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    At the moment I use save to add a single document. Suppose I have an array of documents that I wish ... is done would be problematic. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am using MongoDB 2.2.2 for 32-bit Windows7 machine. I have a complex aggregation query in a .js file. I ... query. Thanks for any help :) See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am developing a software using ASP.Net core 2.0 web api. I need to calculate count of some fields in my ... I write that query in mongoDB? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm trying to learn Go API development. I have a MongoDB instance running in a Docker container. I'm trying ... with robomongo if that helps. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    In my Meteor app, I have a collection of documents with an array of subdocuments that look like this: /* 1 */ ... API features are no good :( See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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