Mongo DB Solution

Mongo DB Solution, Mongo DB exam solution which directs users to pass the exam and get good score

The solution Homework 3.2 M101JS: MongoDB for Node.js Developers

Making your blog accept postsIn this homework, you will be enhancing the blog project to insert entries into the posts collection. After this, the blog will have basic functionality. It will...

The solution to HOMEWORK 4.4 M101JS: MongoDB for Node.js Developers

HOMEWORK: HOMEWORK 4.4In this problem, you will analyze a profile log taken from a MongoDB instance. To start, please download sysprofile.json from Download Handout link and import it with the following...

The solution to HOMEWORK 4.2 M101JS: MongoDB for Node.js Developers

HOMEWORK: HOMEWORK 4.2Suppose you have a collection called tweets whose documents contain information about thecreated_at time of the tweet and the user's followers_count at the time they issued the tweet. What...
mongodb course answers

Answer for Homework 2.1 M101JS Courseware

HOMEWORK: HOMEWORK 2.1In this problem, you will be using an old weather dataset. Download weather_data.csv from the Download Handout link. This is a comma separated value file that you can import...
database collation on the moodle

Store all your data in a Unicode format (UTF-8) – database

Getting error below while installing the moodle, How we can solve them?must be installed and enabledIt is required that you store all your data in a Unicode format (UTF-8). New installations...
database-integrity

Referential Integrity

Referential IntegrityTo establish a "parent-child" or a "master-detail" relationship between two tables having a common column, we make use of referential integrity constraints. To implement this, we should define the column...

Domain Constraints

Domain Constraints(the principle behind attribute domains is similar to that behind typing of variables in programming languages.)We have seen that a domain of possible values must be associated with every attribute....

Integrity Constraints

Integrity Constraints(The rules that should not be violated while performing operation on database)Integrity constraints ensure that changes made to the database by authorized users do not result in a loss...

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