Is a MongoDB\'s NumberLong really 64 bit signed integer really 64 bit? MongoDB\'s NumberLong is said to be a 64 bit signed integer, which should mean we can play with -2^开发者_运维问答63 <= x <
Best practice question about setting Mongo indexes.Mongoengine, the Python ORM wrapper, allows you to set indexes in the Document meta class.
目录MongoDB数据库核心概念1.NoSQL数据库介绍2.MongoDB数据库介绍3.MongoDB支持的数据格式3.1.jsON格式的数据类型3.2.BSON格式4.MongoDB数据库的特性5.MongoDB程序6.MongoDB应用场景MongoDB数据库核心概念
I am trying to unset all values in a document that\'s embedded in an array. Let\'s say I have a collection coll with array things,开发者_开发技巧 containing a value myval. I want to unset myval.This l
I have this structure { \"_id\": \"willwill\", \"rental\": { \"hitchhikergalaxy\": {[...]}, \"animalfarm\": {[..]}
Let\'s say I have a collection with documents that looks like this (just simplified example, but it should show the scheme):
The following code runs w/o problems. collection.insert(file_cont) The following code runs w problems as follows:
In Rails 2.3.6 I\'m trying to use both MongoDb via MongoMapper and Mysql on the same application. I\'ve seen several others question about this but I cannot find how to configure rails to use bo开发者
I am building an API using Codeigniter and MongoDB. I got some questions about how to \"model\" the mongoDB.
Inside my test database, I would like to trigger a \"new_item\" flag for testing.The method already works in my tests.So now I am setting the created_at and published_at fields of all records to 1 mon
加载中,请稍侯......