Mongo's ObjectID is defined like this: ObjectId is a 12-byte BSON type, constructed using: a 4-byte value representing the seconds since the Unix epoch, a 3-byte machine identifier, ...
To scale horizontally, is MySQL with sharding, memcache and master-slave replication better than MongoDB
I am building an api, to share discounts between users. Each discount can be linked with several users, using joins and many to many relationships. Currently I am using MySQL and I am looking to ...
Can anyone help me to make right decision for choosing scalable and reliable database? I have to create 3-4 tables with around 200 columns each and these tables will have around 5000 data records. As ...
What is the mongodb's equivalent to this query: SELECT 111151.29341326*SQRT(pow(-6.186753-Latitude,2)+pow(106.772835-Longitude,2)*cos(-6.186753*0.017453292519943)*cos(Latitude*0.017453292519943)) as ...
I am newbie to the Mongo.Before this I have worked only with MySQL.In MySQL we can import and export database easily.I want to know is there any option available in Mongo to import and export database ...
My requirements are: 3000 Connections 70-85% Write vs Read Currently, we are maxing out a High-CPU, Extra Large Instance at 700 connections. All 8 cores are maxed. We think it's the number of ...