Functions & Operators in PostgreSQL: Mathematical Function & Operator | ...

In this video 📺, we explore Mathematical Functions and Operators in PostgreSQL in depth. PostgreSQL provides a wide range of built-in tools that make complex calculations easy to perform directly inside your SQL queries.

We’ll cover everything step by step with examples and demos, including:
✅ Arithmetic operators (+, -, *, /, %, ^)
✅ Absolute value, square root, cube root, power
✅ Rounding, truncation, logarithmic & exponential functions
✅ Factorials, GCD, LCM, and PI
✅ Random number generation and seeding
✅ Trigonometric functions (sin, cos, tan, atan2) in radians & degrees
✅ Hyperbolic functions (sinh, cosh, tanh, etc.)

By the end of this session, you’ll know how to use these functions in real-world cases like financial applications, GIS, scientific computations, and simulations. 🚀

👉 This is part of the PostgreSQL Full Playlist. Don’t forget to check out previous episodes to build a strong foundation!

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Functions and Operators in PostgreSQL: Comparison Function & Operator | ...

In this video, we’ll dive into Comparison Functions and Operators in PostgreSQL. These are essential for writing precise queries, handling null values, and performing safe comparisons in your database applications.

You’ll learn:

• Basic comparison operators (<, >, =, <>, !=)

• Range testing with BETWEEN and NOT BETWEEN

• Using BETWEEN SYMMETRIC for unordered ranges

• NULL-safe comparisons with IS DISTINCT FROM and IS NOT DISTINCT FROM

• Checking for missing data with IS NULL, IS NOT NULL, and alternatives

• Boolean checks like IS TRUE, IS FALSE, and IS UNKNOWN

• Row-level null comparisons and their tricky behavior

• Handy functions like num_nulls() and num_nonnulls() for analyzing null values

We’ll also cover best practices, pitfalls, and performance tips to ensure your queries run efficiently while avoiding common mistakes with null handling and cross-type comparisons.

📌 This is part of the PostgreSQL Full Playlist, so make sure to check out the other videos if you want to master PostgreSQL step by step.

Data Types in PostgreSQL: JSON Data Types || PostgreSQL Full Playlist #55

Welcome to Part 55 of our PostgreSQL Full Playlist! 🎥 In this video, we dive deep into one of the most powerful data types in PostgreSQL — JSON and JSONB.

📌 What You’ll Learn:

• The difference between json and jsonb types

• How PostgreSQL stores and processes JSON data

• Practical examples: inserting, querying, and updating JSON fields

• Using operators like @>, ?, and ->>

• Powerful indexing strategies using GIN, BTREE, and expression indexes

• Working with jsonpath queries for complex lookups

• Handling edge cases like Unicode, nulls, and nested structures

• Real-world best practices and performance tips for working with semi-structured data

PostgreSQL’s support for JSON is incredibly robust, allowing developers to handle flexible data formats while still benefiting from SQL power.

Whether you're a backend developer, database admin, or student, this video will equip you with essential skills for modern data modeling using JSON in PostgreSQL.

📚 Don’t forget to check the full playlist for more videos on PostgreSQL indexing, constraints, normalization, functions, and performance tuning!

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