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从 SQL 移植到 MongoDB【信息图表】
下图是使用 SQL 和 MongoDB 的对应信息图表,点击图片查看大图:
MongoDB 特征:
- 采用 C++ 开发
- 授权协议:AGPL (客户端驱动包: Apache)
- 支持自定义和二进制JSON(BSON)协议
- 主从复制支持
- JavaScript 查询表达式
- 比 CouchDB 拥有更好的及时更新特性
- 水平伸缩性,内建分区功能
- 数据存储基于内存映射文件
- 更好的使用动态查询,解决模式和列
- 性能非常高
在使用 SQL (以MySQl为例)和使用MongoDB 的区别:
http://www.mongodb.org/display/DOCS/SQL+to+Mongo+Mapping+Chart
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