MongoDB is a NoSql database. The NoSql database is called a non-relational database, and the full name of NoSql is Not only sql . It is a database solution to solve a series of problems such as high concurrency , high availability , high scalability , and big data storage . NoSql , it can not replace relational database , it can only be a good supplement to relational database .
NoSql database is divided into many kinds, such as key -value (Key-Value) storage database (such as redis), column storage database (such as HBase), document database (such as MongoDB), graph (Graph) database and so on.
As a document database , MongoDB 's typical application is a Web application (similar to Key-Value , Value is structured), and its data model is a series of key-value pairs. The advantage of MongoDB is that the data structure requirements are not strict and the operation is flexible; the disadvantage is that the query performance is not high, and it lacks a unified query syntax.
At present, we take the win7 system as an example. It is relatively simple to install MongoDB on 64-bit win7, because the official website of MongoDB is in the community server version (< a href="https://www.mongodb.com/download-center#community" target="_blank ">https://www.mongodb.com/download-center#community), only a 64-bit MongoDB is recommended. In terms of installation, there are also many posts on the Internet. I believe everyone can install it smoothly.