How To Create PostgreSQL Foreign Table? PostgreSQL Foreign Data | Best P...

Are you looking to access external data in PostgreSQL without duplicating it? PostgreSQL's Foreign Data Wrappers (FDW) allow you to integrate data from remote databases seamlessly! 🚀 In this tutorial, we will walk you through creating a PostgreSQL Foreign Table step by step. You'll learn how to use FDWs to connect to external databases, query foreign data as if it were local, and even perform modifications based on FDW capabilities. 🔹 Topics Covered: ✅ What is Foreign Data in PostgreSQL? ✅ Understanding Foreign Data Wrappers (FDW) ✅ Creating a Foreign Data Wrapper ✅ Defining a Foreign Server and User Mapping ✅ Creating and Querying a Foreign Table ✅ Modifying and Importing Foreign Data 💡 Why Use Foreign Tables? Combine data from multiple databases without duplication Improve reporting and analytics by accessing external sources Enhance microservices and distributed system interactions By the end of this video, you’ll have a fully functional foreign table setup in PostgreSQL, allowing you to efficiently query and manage remote data! 📌 Don't forget to LIKE 👍, SHARE, and SUBSCRIBE 🔔 for more in-depth PostgreSQL tutorials! #PostgreSQL #ForeignTable #FDW #DatabaseIntegration #SQL #PostgreSQLTutorial

How To Create Partitions In PostgreSQL || Partitions Explained || Best P...

Managing large datasets in PostgreSQL can be challenging, but Table Partitioning makes it easier! 🚀 In this video, we’ll dive into Declarative Partitioning, how it helps optimize performance, and how to implement Range, List, and Hash partitions in PostgreSQL. 🔹 What You Will Learn: ✔ What is Table Partitioning and why it is useful ✔ Different types of Partitioning (Range, List, Hash) ✔ Step-by-step Partition Creation & Management ✔ Using Partition Pruning to improve query performance ✔ Key differences between Partitioning and Inheritance 🔹 Example Queries & Hands-On Demonstration 📌 Range Partitioning – Storing sales data per month 📌 List Partitioning – Organizing data by regions 📌 Hash Partitioning – Distributing data efficiently across partitions 📌 Partition Pruning – Optimizing queries for better performance 🔹 Why Should You Use Partitioning? ✅ Faster Queries by scanning only relevant partitions ✅ Efficient Bulk Deletion without impacting the whole table ✅ Improved Storage Management for older & recent data ✅ Better Performance with parallel query execution 🔔 Don’t forget to LIKE 👍, SHARE 🔄, and SUBSCRIBE 🔔 for more PostgreSQL tutorials! 💬 Have questions? Drop them in the comments! #PostgreSQL #DatabasePartitioning #SQLOptimization #TechTutorial PostgreSQL, Table Partitioning PostgreSQL, Range Partitioning, List Partitioning, Hash Partitioning, PostgreSQL Tutorial, SQL Performance, PostgreSQL Optimization, Database Partitioning, SQL Partitioning, PostgreSQL Partitions, SQL Query Performance, Declarative Partitioning, PostgreSQL Hash Partitioning, PostgreSQL Range Partitioning, SQL Bulk Deletion, PostgreSQL Partition Pruning, SQL Query Optimization, PostgreSQL Data Management, postgresql performance, partition example

What Is Inheritance In PostgreSQL? PostgreSQL Inheritance || Best Postgr...

PostgreSQL supports table inheritance, a powerful feature that allows tables to inherit structure and data from other tables. This enables database designers to model complex real-world relationships efficiently.

🔹 Understanding PostgreSQL Inheritance
Inheritance in PostgreSQL allows a child table to automatically acquire the columns of a parent table. This is useful for scenarios where multiple tables share common attributes but also require unique fields.

🔹 Basic Example: Cities and Capitals
We demonstrate how a capitals table can inherit from a cities table, making data retrieval more streamlined. Queries on the parent table can include data from child tables, but you can also filter specific tables using the ONLY keyword.

🔹 Querying Inherited Data

• Retrieve all records (including inherited rows)
• Query only parent table records using ONLY
• Identify source tables using the tableoid system column

🔹 Limitations & Constraints
While CHECK and NOT NULL constraints are inherited, primary keys, unique constraints, and foreign keys are not. This video explores how to work around these limitations effectively.

🔹 Advanced Inheritance Features

• Multiple Inheritance – A table can inherit from multiple parent tables, merging attributes from all.
• Dynamic Inheritance – Modify inheritance relationships on the fly using ALTER TABLE.
• Dropping Parent Tables – Child tables must be handled carefully before dropping a parent table.

🔹 Real-World Applications
We explore practical use cases where inheritance simplifies schema design, improves query performance, and enhances access control.

📌 Conclusion
PostgreSQL inheritance is a flexible tool for organizing database schemas, but it has limitations regarding constraints, indexing, and insert behavior. Understanding these aspects will help you design efficient and scalable databases.

🚀 Next Topic: Table Partitioning in PostgreSQL – Stay tuned!

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PostgreSQL Schemas Explained || Schemas Advanced Options In PostgreSQL |...

📊 PostgreSQL Schemas Explained | Advanced Schema Options 🚀 Welcome to Best PostgreSQL Video #23, where we unlock the full potential of PostgreSQL Schemas, focusing on advanced options like privileges, permissions, and access management. Whether you're a PostgreSQL beginner or an experienced database professional, this video will help you master the art of schema management. 🎯 What You’ll Learn in This Video: 🔹 1. Introduction to PostgreSQL Schemas: What is a Schema? A schema is a logical container or namespace with database objects like tables, views, functions, etc. It helps organize data and manage access efficiently within large databases. Default Behavior: By default, users cannot access objects in schemas they do not own unless explicit privileges are granted. 🔐 2. Managing Privileges in PostgreSQL: Understanding privileges is key to securing your database. USAGE Privilege: Allows users to access objects in the schema without modifying them. GRANT USAGE ON SCHEMA sales TO my_user_role; SELECT, INSERT, and CREATE Privileges: Learn how to control data visibility and modification rights. GRANT SELECT ON sales.customers TO my_user_role; GRANT INSERT ON sales.customers TO my_user_role; GRANT CREATE ON SCHEMA sales TO my_user_role; Real-World Example: See what happens when you don’t grant INSERT privileges—and how quickly things change once you do! -- This will FAIL INSERT INTO sales.customers (customer_id, customer_name) VALUES (1, 'Akram'); -- Granting INSERT privilege GRANT INSERT ON sales.customers TO my_user_role; -- Now this will SUCCEED INSERT INTO sales.customers (customer_id, customer_name) VALUES (1, 'Akram'); 🚫 3. Revoking Privileges: Learn how to restrict access when needed by revoking previously granted privileges. This is critical for maintaining database security as team roles change. REVOKE INSERT ON sales.customers FROM my_user_role; 🗂️ 4. Object Creation in Different Schemas: Sometimes, you’ll want users to create objects in schemas they don’t own. We’ll cover: Granting CREATE privileges to specific roles. Best practices for schema-level security. How to avoid common mistakes when setting permissions. GRANT CREATE ON SCHEMA sales TO my_user_role; CREATE TABLE sales.customers2 ( customer_id NUMERIC(10) PRIMARY KEY, customer_name TEXT NOT NULL ); 💡 Why This Video is Important: Enhanced Security: Learn how to safeguard sensitive data with precise privilege management. Optimized Workflows: Grant the right access to the right users without compromising security. Real-World Application: Practical SQL examples you can implement immediately in your PostgreSQL projects. ✅ Who Should Watch? Database Administrators (DBAs) looking to improve security protocols. Backend Developers who interact with PostgreSQL databases. SQL Enthusiasts & Data Analysts eager to deepen their PostgreSQL knowledge. 🔔 Don’t Forget To: 👍 Like the video if you find it helpful. 💬 Comment your thoughts or questions—we love hearing from you! 📢 Share with your team or peers working on PostgreSQL. ✅ Subscribe for more in-depth PostgreSQL tutorials. #PostgreSQL #DatabaseSecurity #SQLTutorial #DatabaseManagement #PostgreSQLSchemas #SQLBestPractices