Given the following mongoDB documents for the Contacts collection, complete the next 3 questions [ { “_id”:1, “Contact”:{“fname”:“John”, “lname”:“Doe”, “Phone”:“9055551212”}, “balance”:1000}, { “_id”:2, “Contact”:{“fname”:“Jane”, “lname”:“Smith”, “email”:“jsmith@dom.com”}, “balance”:786.45},  { “_id”:3,“Contact”:{“fname”:“Raj”, “lname”:“Patel”, “email”:“rpatel@ema.com”}} ]   Write the OUTPUT for the third statement (MongoDB Shell) below assuming the first 2 have already been executed successfully: > db.Contacts.update( {“_id”:2},{“$inc”: {“balance” : 12.45}}) > db.Contacts.update( {“_id”:1},{“$inc”: {“balance” : 19.99}}) > db.Contacts.find({“_id” : {“$lte” : 2}})

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
icon
Related questions
Question

Given the following mongoDB documents for the Contacts collection, complete the next 3 questions

[
{ “_id”:1, “Contact”:{“fname”:“John”, “lname”:“Doe”, “Phone”:“9055551212”}, “balance”:1000},
{ “_id”:2, “Contact”:{“fname”:“Jane”, “lname”:“Smith”, “email”:“jsmith@dom.com”}, “balance”:786.45}, 
{ “_id”:3,“Contact”:{“fname”:“Raj”, “lname”:“Patel”, “email”:“rpatel@ema.com”}}
]

 

Write the OUTPUT for the third statement (MongoDB Shell) below assuming the first 2 have already been executed successfully:

> db.Contacts.update( {“_id”:2},{“$inc”: {“balance” : 12.45}})
> db.Contacts.update( {“_id”:1},{“$inc”: {“balance” : 19.99}})
> db.Contacts.find({“_id” : {“$lte” : 2}})

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Table
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education