SQL vs HTML: A Complete Comparison

(Same content as before up until the SQL Syntax section)

SQL vs HTML – Syntax Comparison

The syntax of SQL and HTML differ significantly:

SQL Syntax

The roots of SQL date back to an IBM research paper titled "A Relational Model of Data for Large Shared Data Banks” authored by Donald D. Chamberlin and Raymond F. Boyce in 1974. This introduced SQL as a database access language to manipulate data stored in relational database structures. Since then SQL was refined and standardized into ANSI and ISO standards like SQL:2016 that are used widely today.

SQL syntax is closer to human language but still has a learning curve. Statements are instructions like:

SELECT column1, column2
FROM my_table;
UPDATE my_table
SET column2 = ‘new value‘
WHERE id = 12;

Keywords like SELECT determine the operation. Other clauses filter data, specify conditions, joins, ordering, etc.

Some examples of common SQL query types:

Basic Data Selection

SELECT name, age 
FROM users;

Filtered Rows

  
SELECT *
FROM products
WHERE price > 50;

Aggregate Functions

SELECT COUNT(customer_id), MAX(order_amount)
FROM orders;

So while basic SQL queries feel natural, full-featured applications require complex logic.

Advantages

English-like syntax helps understand purpose of statements
Standard ANSI SQL works across major database platforms

Disadvantages

Advanced elements like unions, constraints, triggers require depth
Data types, indexes, functions vary across systems

SQL offers nice high-level syntax but nuances exist in RDBMS specifics.

(HTML Syntax section unchanged)

A Brief History of HTML

HTML traces its origins back to Sir Tim Berners-Lee’s efforts in the late 1980s and early 1990s to create a common markup framework for sharing documents at CERN. He built upon existing markup languages like SGML to create the early iterations of HTML running on the first web servers and browsers.

Since then it has constantly evolved from early structuring to today’s wide range of semantic markup elements. HTML5’s arrival in 2014 brought the most significant updates like new multimedia support, connectivity improvements, performance boosts etc.

The Role of SQL in Major Sites and Applications

The world’s most popular internet platforms utilize SQL databases extensively behind the scenes:

Facebook

At massive scale, Facebook leverages large MySQL deployments on custom database server hardware and infrastructure. This powers the site‘s core features like:

User profiles and social graphs
News Feed content and rankings
Notifications and messaging systems

They execute upwards of 100 million SQL queries per second acrosspetabytes of structured user data.

Google Cloud SQL

The Google Cloud Platform provides fully managed, scalable Cloud SQL database instances. These underly many Google services:

YouTube video metadata and analytics
Google Maps listings and locations data
Gmail contacts and email message data

Cloud SQL auto scales capacity, maintains redundancy, manages failures to allow Google‘s infrastructure to focus innovation rather than database ops.

Airbnb Experiences Backend

The Airbnb mobile app and site relies on an array of microservices powered by PostgreSQL. Listings data, search rankings, reviews and images are all stored across specialized databases.

SQL statements help compute metrics like a listing‘s total bookings, average ratings etc. Analytics dashboards visualize trends over rich SQL data.

So SQL remains pivotal for product listings, account data, payments etc across sites and apps.

HTML Usage in Popular Frontend Frameworks

Many popular open source JavaScript frameworks enhance and streamline HTMl document creation:

React

Component model promotes reuseable, modular HTML chunks
Virtual DOM determines minimal DOM updates for performance
Easy to reason about how data flows into HTML views

Helps developers efficiently wire backends to modular frontend components.

Vue

Template syntax for declarative rendering HTML
Reactive data binding sync data to DOM
Focused on developer experience writing HTML/JS

Streamlines linking data to clean HTML templates.

Angular

HTML as template language for components
Powerful directives extend HTML syntax
Built-in services for communication, routing, HTTP

Provides helpful extensions for reducing boilerplate HTML.

So many frameworks optimize writing modular, maintainable HTML documents.

The Scale of SQL and HTML Usage

SQL and HTML remain among the most widely used languages globally:

SQL

87% of databases run on SQL databases as per DB-Engines rankings
71% of new databases use SQL over NoSQL
$13 billion RDBMS market projected by 2023

HTML

Over 1.5 billion websites online using HTML
~65% of sites use HTML5 over earlier versions
HTML pages generate over 65% of web traffic

So both continue exponential growth powering new sites and applications daily.

(Remaining sections unchanged from first content)