The difference between MongoDB and the traditional relational database

Compare Items MongoDB mysql/oracle

Table Collection list Two-dimensional tables table

A row of data in a table document a record recording

Table Keys key Fields field

Field value Values value value

Primary foreign Key No PK,FK

Very high flexibility and very poor degree of scalability

1. The record of the tables in the relational database must be guaranteed to have the same field

2.MongoDB each document key can be different

3. Queries for relational databases use SQL

4.MongoDB queries use the built-in Find function--a special query tool based on Bson

The difference between MongoDB and the traditional relational database