cheatsheet

MongoDB Introduction NoSQL databases are non-relational databases that are used to store and retrieve data. MongoDB is a popular NoSQL database that is used to store data in the form of documents. Feature SQL (Relational Databases) NoSQL (Non-Relational Databases) Schema Fixed schema Dynamic schema for unstructured data Scalability Vertical scalability (scale-up by adding more powerful CPU, RAM, SSD) Horizontal scalability (scale-out by adding more servers) Complexity Tables with rows and columns, complex queries with JOINs Document, key-value, wide-column, or graph formats, simpler queries Transactions ACID properties (Atomicity, Consistency, Isolation, Durability) for reliable transactions BASE properties (Basically Available, Soft state, Eventual consistency) less strict than ACID Development Model Mature, with established standards More flexible and evolving rapidly Use Cases Well-suited for complex queries and transactions, e....

Extended Markdown Cheatsheet Heading 1 2 3 4 5 6 # Heading 1 ## Heading 2 ### Heading 3 #### Heading 4 ##### Heading 5 ###### Heading 6 Paragraph 1 This is a paragraph. Code snippet 1 'print("Hello World")' block of code 1 2 3 ''' print("Hello World") ''' code within the clock of code can be selectively highlighted 1 2 3 '''python print("Hello World") ''' Emphasis 1 2 3 4 5 *This text will be italic* _This will also be italic_ **This text will be bold** __This will also be bold__ _You **can** combine them_ Table 1 2 3 4 | Syntax | Description | | ----------- | ----------- | | Header | Title | | Paragraph | Text | Bulletpoints 1 2 3 4 - Bulletpoint 1 - Bulletpoint 2 - Bulletpoint 2....

Git / github cheatsheet Installation of git Download git from here or use on debian based linux 1 2 sudo apt update sudo apt install git Check if git is installed 1 git --version Configure git 1 2 git config --global user.name "Your Name" git config --global user.email "Your email" (Optional) Change the default brach name from master to main 1 git config --global init.defaultBranch main Configuring SSH keys to github Run these commands on the terminal 1 2 3 4 ssh-keygen -t ed25519 -C "$Your email" eval "$(ssh-agent -s)" ssh-add ~/....

Sql documentation Installation The installation and usage of MySQL can be done in many ways; one is to install WAMP/XAMPP server and using SQL through it another is to use an online sql emulator, the best way is to use a MySQL server. Getting started with MySQL All the operations in SQL can be classified into 3 types DDL: Data definition language includes operation like create, alter, drop DML: Data manipulation language includes operation like select, insert, update, delete DCL: Data control language includes operations like commit, rollback, grant, revoke...