What is mongoDb

Question

MongoDB is an open-source/cross plateform (window, linuz etc) document database that is NoSql it is json format database.

it is written in C++. Purpose of this database is to create and deploy a highly scalable and performance-oriented database.

Stable release: 3.4.6 / 5 July 2017; 30 days ago

Initial release: February 2009, 11

other DB

Any database called name as Database

created Table called name as table under any database

Row any records called name as row

column any filed called its column

Table Join resulted data between two cor more table called table join

Primary Key it is unique and not null value

MongoDB

Any database called name as Database

Collection is equal to table

Document is equal to row

Field is equal to column

Embedded Documents is equal to table join

Primary Key (Default key _id) it is hexadecimal value (12 byte)

12 byte: 4 byte time stamp, 3 byte machine code, 2 bytes process id and 3 byes for incremeted process