Mongodb的一些基本概念
首先推荐给各位一本mongodbde的书籍《Mongodb权威指南》,可以在网上购买纸质的书籍,可以下载电子版的书籍。1.Mongodb的概念
Mongodb是一种强大,灵活,可扩展的数据存储方式。它扩展了关系型数据库众多有用的功能,如索引,范围查询和排序。Mongodb的功能非常的丰富,比如内置的对MapReduce式聚合的支持,以及对地理空间索引的支持。
Mongodb是面向文档的数据库,而不是关系型的数据库。
[*]文档是Mongodb中数据的基本单元,非常类似关系数据库中的行的概念;
[*]多行文档组合成了集合,Mongodb中的集合可以看做表;
[*]多个集合可以归纳在一个数据库之下;
[*]每个文档都有一个特殊的键"_id",它在文档所处的集合中是唯一的;
[*]文档的格式是BSON的,可以简单呢理解为2进制的JSON。
关于文档的结构,基本上有3种
[*]{“name”:"ping","age":"29"}
[*]{"age":"29",name:{"firstname":"ping","lastname":"chen"}}
[*]{“name”:"ping“,"fruits":["apple","banana"]}
[*]
{“name”:"ping“,"pets":[{"petid":1,"level":30},{"petid":101,"level":50}]}
Mongodb中新建的值的数据类型有
null,true,false,32-int,64-int,64浮点数,”字符串“,”符号“,对象id,日期,正则表达式,代码,2进制数据,最大值i,最小值,未定义,数据,内嵌文档
够丰富吧。
关于每个文档都有的"_id"键的值的生成格式如下:
http://www.iyunv.com/chenping-987123/archive/2012/04/01/data:image/png;base64,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总共长度是12个字节。
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