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Collecting & Displaying Records



In this chapter, we will focus on the JSON structure, which forms part of the “Agile methodology”. MongoDB is a widely used NoSQL data structure and operates easily for collecting and displaying records.

JSON Structure

Step 1

This step involves establishing connection with MongoDB for creating collection and specified data model. All you need to execute is “mongod” command for starting connection and mongo command to connect to the specified terminal.

Specified Data Model

Step 2

Create a new database for creating records in JSON format. For now, we are creating a dummy database named “mydb”.

>use mydb
switched to db mydb
>db
mydb
>show dbs
local 0.78125GB
test 0.23012GB
>db.user.insert({"name":"Agile Data Science"})
>show dbs
local 0.78125GB
mydb 0.23012GB
test 0.23012GB

Step 3

Creating collection is mandatory to get the list of records. This feature is beneficial for data science research and outputs.

>use test
switched to db test
>db.createCollection("mycollection")
{ "ok" : 1 }
>show collections
mycollection
system.indexes
>db.createCollection("mycol", { capped : true, autoIndexId : true, size :
 6142800, max : 10000 } )
{ "ok" : 1 }
>db.agiledatascience.insert({"name" : "demoname"})
>show collections
mycol
mycollection
system.indexes
demoname