Data Types in PostgreSQL: XML Data Types || PostgreSQL Full Playlist #54

In this video (#54 of our PostgreSQL Full Playlist), we dive deep into the XML Data Type in PostgreSQL — a powerful and structured way to store and process XML content directly in your database!

We start by exploring how the xml type differs from regular text, including its built-in validation for well-formed XML and compatibility with XML functions like xmlparse, xmlserialize, and xpath.

You’ll learn:

• How to insert XML documents and fragments using XMLPARSE

• PostgreSQL-specific shorthand syntax for XML data

• How to convert XML back into text format using XMLSERIALIZE

• Encoding best practices to avoid client-server issues

• How to query XML using xpath() for data extraction

• Workarounds for indexing XML using full-text search

• Checking whether a stored XML value is a document or content fragment

This video also covers best practices, potential pitfalls, and performance tuning advice when working with XML data in PostgreSQL.

Whether you're building APIs, handling metadata, or managing config files — XML in PostgreSQL is a must-have tool in your toolkit. Don't forget to watch till the end and subscribe for more database tutorials!

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Data Types in PostgreSQL: UUID Data Types || PostgreSQL Full Playlist #53

Welcome to Part 53 of our full PostgreSQL tutorial playlist! 🎥
In this video, we explore the UUID (Universally Unique Identifier) data type in PostgreSQL — a crucial tool for distributed systems and secure, globally unique identifiers.

UUIDs are 128-bit identifiers standardized by RFC 4122, and PostgreSQL provides native support for them using the uuid data type. We'll guide you through:

• What UUIDs are and how they're formatted

• Differences between UUID and SERIAL types

• How to use the uuid-ossp extension to generate UUIDs

• Creating tables with UUID primary keys

• Writing SQL statements using UUIDs (including inserts, selects, and references)

• Use cases and performance considerations

• Bonus: Real-life examples for UUID-based design

💡 Whether you're building microservices, secure APIs, or scalable systems — UUIDs can give your application a powerful edge in uniqueness and security.

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Data Types in PostgreSQL: Text Search Data Types || PostgreSQL Full Play...

In this video, we dive deep into Text Search Data Types in PostgreSQL, focusing on the powerful combination of tsvector and tsquery. These types form the foundation of PostgreSQL’s built-in Full-Text Search capabilities, enabling developers to perform fast and accurate text searches directly within the database—without needing external tools.

We begin by exploring the tsvector type, which is used to store normalized searchable content, and learn how to manage lexemes, weights, and positions. Then, we examine the tsquery type, which enables rich search logic using Boolean operators, prefix matching, phrase matching (<->), and more.

This tutorial also includes:

• Creating tables and inserting text data

• Using to_tsvector() and to_tsquery() for normalization

• Matching vectors with queries using the @@ operator

• Improving performance with GIN indexes

• Automatically updating vectors via triggers

• Ranking results using ts_rank

• Highlighting search results with ts_headline

• Debugging with ts_debug

Whether you're building a blog search, product catalog filter, or document search engine, PostgreSQL makes it all possible—natively. This is an essential episode in our PostgreSQL Full Playlist. Don’t forget to like, comment, and subscribe!

Data Types in PostgreSQL: Bit String Data Types || PostgreSQL Full Playl...

Welcome to Episode #51 of our PostgreSQL Full Playlist! 🎬

In this tutorial, we dive deep into Bit String Data Types in PostgreSQL—BIT(n) and BIT VARYING(n). These types allow you to store and manipulate binary sequences (1s and 0s), perfect for compact data storage like bitmasks, feature flags, and permission sets.

We’ll cover:

• What are BIT(n) and BIT VARYING(n) types?

• The difference between fixed and variable-length bit strings

• How to insert valid/invalid values

• How casting affects storage (padding and truncation)

• Real-world use cases

• Using bitwise operators (AND, OR, XOR, NOT)

• Useful bit string functions like LENGTH() and OCTET_LENGTH()

• Common pitfalls and advanced tips

With full examples and clear explanations, this video is ideal for both beginners and intermediate PostgreSQL learners.

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Data Types in PostgreSQL: Network Address Data Types || PostgreSQL Full ...

In this video, we explore Network Address Data Types in PostgreSQL — an essential part of working with IP addresses and MAC addresses directly in the database.

You’ll learn how PostgreSQL provides specialized support for IP address types such as inet (IPv4/IPv6 hosts), cidr (network blocks), and MAC address formats like macaddr and macaddr8. These data types are far more reliable and efficient than storing IPs as plain text, allowing for input validation, indexing, subnetting operations, and more.

We also provide practical examples, including:

• Creating tables using inet, cidr, macaddr, and macaddr8

• Inserting and querying IP and MAC addresses

• Using powerful built-in functions like host(), netmask(), abbrev(), and macaddr8_set7bit()

• Understanding the difference between inet and cidr

If you're building applications involving network infrastructure, IoT devices, firewalls, or logging systems — this tutorial is a must-watch!

📌 Full Playlist: Don’t forget to check out the complete PostgreSQL series if you’re following along from the start.

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Data Types in PostgreSQL: Date/Time/Interval Data Types || PostgreSQL Fu...

Welcome to Episode 49 of the PostgreSQL Full Playlist! In this tutorial, we explore one of the most important areas of database development — Date/Time and Interval Data Types in PostgreSQL.

PostgreSQL provides highly flexible and powerful temporal data types including DATE, TIME, TIMESTAMP, TIMESTAMPTZ, and INTERVAL. Whether you're handling simple dates, calculating durations, or dealing with timezone-aware timestamps, this video will guide you through all the critical concepts with real-world use cases, hands-on SQL examples, and expert-level insights.

You will learn:

• The difference between TIMESTAMP and TIMESTAMPTZ

• How to use and format INTERVAL for date arithmetic

• How time zone conversion works using AT TIME ZONE

• Date formatting with datestyle and intervalstyle

• Special constants like now, epoch, today, and yesterday

• Functions like CURRENT_DATE, DATE_TRUNC, EXTRACT, and more!

💡 This video is perfect for:

• Students learning databases

• Backend developers handling temporal data

• Data engineers dealing with time-series data

• Anyone preparing for SQL interviews or certifications

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Data Types in PostgreSQL: Binary (BYTEA) Data Types || PostgreSQL Full P...

📦 Welcome to Episode #48 of our PostgreSQL Full Playlist! In this video, we dive deep into one of the most important and specialized PostgreSQL data types — Binary Data Types, specifically the BYTEA type.

🔍 The BYTEA data type is used to store binary data like files, images, encrypted content, or any non-textual byte stream. We’ll walk you through:

• What is BYTEA and when to use it

• Input formats: Hex vs Escape (with full examples)

• How to insert and retrieve binary data

• Usage of encode() and decode() functions

• How PostgreSQL automatically compresses large binary objects using TOAST

• Important security and performance tips for handling BYTEA values

🎓 Whether you're a database developer, backend engineer, or someone diving into PostgreSQL internals — this video will give you both the theory and hands-on practice to master binary data management in PostgreSQL.

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Data Types in PostgreSQL: ENUM (Enumerated) Data Types || PostgreSQL Ful...

In this tutorial, we dive deep into Enumerated (ENUM) Data Types in PostgreSQL – one of the most powerful ways to enforce data integrity and readability in your database schema. 🎯

You’ll learn how to create and use ENUM types to define columns with a fixed set of valid values, like moods, statuses, or categories. We’ll walk through step-by-step examples showing how to:

• Declare ENUM types using CREATE TYPE

• Use ENUMs in tables with INSERT and SELECT

• Understand ENUM ordering and comparison operators

• Avoid type mismatches and safely cast ENUMs

• Add or rename ENUM values using ALTER TYPE

• Inspect ENUM values via PostgreSQL system catalogs

We also cover type safety, implementation details, and best practices when deciding between ENUMs and lookup tables.

Whether you're a PostgreSQL beginner or brushing up on advanced data types, this video is a must-watch to strengthen your schema design skills.

📌 Don't forget to check out the full PostgreSQL Playlist for more structured learning!

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