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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
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?
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, note that it is numeric, do not string the
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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
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
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
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
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
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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