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4. Advanced CRUD Operations

MQL Operators Update Operators: Example: $inc, $set, $unset These update operators enable us to modify data in the database. Query Operators: Query Operators provides additi...

3. Creating and Manipulating Documents

Inserting New Documents Every MongoDB document must have unique _id value. ANd every _id field in a collection must have a unique value from the rest of the documents in the collection. Likewise, ...

2. Importing, Exporting, and Querying Data

How Does MongoDB Store Data? MongoDB uses documents to store data. When we view or update documents in the MongoDB shell, you’re working in JSON which stands for ‘JavaScript Standard Object Notati...

1. What is MongoDB?

What is a MongoDB Database? A database, meaning a structured way to store and access data. More specifically, it is a NoSQL database. NoSQL databases mean that it doesn’t use the traditional appro...

SQL Cheatsheet

Pulling data from databases

sql2csv : documentation sql2csv: executes an SQL query on a large variety of SQL databases (e.g. MS SQL, MySQL, Oracle, PostgreSQL, Sqlite) outputs the result to a CSV ...

Getting started with csvkit

What is csvkit? csvkit: is a suite of command-line tools is developed in Python by Wireservice offers data processing and cleaning capabilities on CSV files ...

Downloading data using curl

What is curl? curl: is short for Client for URLs is a Unix command line tool transfer data to and from a server is used to download data from HTTP(S) sites ...

Basic functions in Bash

IF statements