Brief introduction of Relational Database and non-Relational Database
Relational database is a database based on relational model. So what is a relational model? The model of storing data in rows and columns as a two-dimensional table is a relational database. For example: mysql and oracle
Non-relational database (NoSQL, that is, Not-Only SQL) can be used as a good supplement to relational database. With the rise of Internet web websites, relational databases expose more and more shortcomings, such as high concurrent reading and writing to databases, efficient storage and access to massive data. The common non-relational database is redis,mongoDB.
