MongoDB

Question 1

what is MongoDB?

Answer 1

A NoSQL (not only sql) database management system

Question 2

what does not only sql mean?

Answer 2

instead of storing data in tables with sql, we store data that is frequently accessed together in the same document. document = row in sql

Question 3

how is data stored in mongodb documents?

Answer 3

data in each document is stored in field-value pairs
technically bson (binary javascript object notation)

Question 4

how do you create a new database?

Answer 4

use [newdatabasename]

Question 5

how do you show all current databases? (2)

Answer 5

show dbs

*note that empty dbs will not show up

Question 6

how do you use a database?

Answer 6

use [databasename]

Question 7

how do you add a collection to a database?

Answer 7

db.createCollection(“collection_name”)

Question 8

how do you drop (delete) the current database? (shell)

Answer 8

navigate to the database you want to delete, then db.dropDatabase()

Question 9

how do you insert a document into a database?

Answer 9

db.collection_name.insertOne({name:”Spongebob”, age:30, gpa:3.2})

note: a document is contained within curly brackets and can contain as many field-value pairs as you’d like}