NOSQL

NOSQL - Not SQL Data Base , It used to store the Structure /Non Structure Data which is log/avi/twits/Blogs and etc.

In generally prefer the NOSQL in the following

1) Better Performance

2) Horizontal Scalablity

3) HA


Category :

1) Key Value - DynamoDB

2) Document - MongoDB

3) Column Based -HBASE


Not exists in NOSQL :


1) No Join

2) No Constrain

3) No Complex Transaction