mongodb unique id generation

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MongoDB Data Summary topic)

Document directory 1. What is MongoDB? 3. MongoDB hands-on experience sharing 4. MongoDB and open-source projects 5. MongoDB client and tool set 7. MongoDB performance and Optimization 9. MongoDB news Address: http://blog.nosqlfan.com/html/

MongoDB Data Summary

Original: MongoDB Data summaryThe previous Redis Data summary topic is very popular, here the MongoDB series of information is also a simple collation. Hope to be useful to everyone. Last update time: 2013-04-22What is 1.MongoDB? MongoDB

MongoDB Information Summary Topic

What is 1.MongoDB? MongoDB Introduction ppt Sharing MongoDB Gridfs Introduction ppt Two First knowledge of MongoDB Gridfs MongoDB Gridfs Introduction A NoSQL and MongoDB introduction ppt MongoDB: Next Generation MySQL?

Distributed unique ID minimalist Tutorial __ system architecture

Original: Http://mp.weixin.qq.com/s/cqIK5Bv1U0mT97C7EOxmnA distributed unique ID minimalist tutorialOne, the signature All business systems have the need to generate IDs, such as order IDs, product IDs, article IDs, and so on. This ID will be the

How PHP generates a unique numeric ID

How PHP generates a unique numeric ID, note that it is numeric, do not string the Reply content: How PHP generates a unique numeric ID, note that it is numeric, do not string the Landlord, you are a big problem. Twitter,weibo and so on have

MongoDB Introductory article

0) MONGO: Connect MongoDB database via client1) Show DBS---Display the currently created database2) Use test---Create or switch databases3) Db.dropdatabase ()--Delete the current database3) Show Collections: Displays the collection created by the

MongoDB Starter Series (4)--mongodb Architecture and client basic operation and attention to detail

When it comes to MongoDB's architecture, it is inevitable to compare it with relational databases. Here we take MySQL for example, we make some comparisons:From the logical structure of the comparison: MySQL Hierarchy concept

Primary Exploration of MongoDB-basic concepts and data types

I. Basic Concepts 1. Document: MongoDB is a Document-based NoSQL database. A document is the basic unit of data in MongoDB and is very similar to rows in relational databases (more complex than rows ). A document consists of multiple key pairs that

Id Generation Method in distributed environment

A few days ago, I studied database sharding and database sharding. One of the key issues is the generation of a unique key. If the data table contains 0.1 billion data records, it is constantly increasing, here we need to consider the sub-table and

MongoDB Learning Summary

Start the corresponding SERVER:CD: Mongod--dbpath db Path to the Mangodb installation root directoryTo create the MANGODB service:Mongod.exe--logpath d:/mongodb/logs/mongodb.log--logappend--dbpath d:/mongodb/db--directoryperdb--serviceName

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