NoSQL数据库

问题描述

在过去几年中，我注意到NoSQL DB的兴趣正在增加。
许多新的这样的DB被发布：

• 等..

你认为它的目标是替换关系模型，一般来看你如何看待NoSQL的未来。

解决方案

为什么 NoSql（MongoDB）？

1. 可扩展和灵活的数据存储：这是远离关系数据库的主要原因。






3. 缩小范围：在更多机器上分割资料。

>


4. 惊人的快：MongoDB使用二进制线协议作为主要交互模式
   与服务器

   
   
   



5. 
   

6. 简单管理（如果主从架构中的主站故障，则自动故障切换）

MongoDB是强大的，并试图保持许多功能从关系
系统，它不打算做关系数据库做的一切。每当
可能时，数据库服务器将处理和逻辑卸载到客户端。

For last several years I have noticed that interest to NoSQL DBs is increasing.A lot of new such DBs are released :

• MongoDB
• CouchDB
• Memcachedb
• memcached
• Velocity
• Cassandra
• Tokyo Cabinet
• etc..

What you think is it targeted to replace relational model and in general how do you see the future for NoSQL.

解决方案

Why NoSql (MongoDB)?

1. Scalable and flexible datastore : This is the primary reason for moving away from relational database.

2. Schema less : represent complex hierarchical relationships with a single record.

3. Scaling Out: Partitioning data across more machine.

4. Amazingly Fast : MongoDB uses a binary wire protocol as the primary mode of interactionwith the server

   Features:

5. Indexing with ease

6. Stored Java Script

7. Simple Administration (automatic fail over if master goes down in master-slave architecture)

MongoDB is powerful and attempts to keep many features from relationalsystems, it is not intended to do everything that a relational database does. Wheneverpossible, the database server offloads processing and logic to the client side.

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