PostgreSQL UPDATE Command: Changing Data With Ease

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Learn how to use the UPDATE command in PostgreSQL to modify specific rows and columns efficiently with real-life examples and tips.

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Watch Complete Video - https://youtu.be/T67ZsVixEvY
Blog - https://knowledge360blog.blogspot.com/2025/03/update-data-options-in-postgresql.html
Notes - https://drive.google.com/file/d/1DJahnTQdyWTpgnOLGcL07rALSgFQ7aNX/view?usp=sharing

Description
In this PostgreSQL tutorial, we dive deep into the UPDATE command, one of the most essential commands for modifying data in relational databases. You'll learn how to update specific rows, update all rows, modify multiple columns, and even use expressions and subqueries within an UPDATE statement.

We’ll start with simple UPDATE commands to modify individual rows based on specific conditions using the WHERE clause. You’ll also see how to update all rows in a table and how to increase prices or values dynamically using expressions.

Additionally, this video covers multi-column updates, using subqueries in UPDATE, and powerful UPDATE with JOIN techniques to modify data based on other tables. We'll also show you how to retrieve updated data using RETURNING clause for immediate feedback on changes made.

✅ Whether you're a beginner learning SQL updates or looking to sharpen your PostgreSQL skills, this tutorial will give you practical knowledge and real-world examples to handle data manipulation confidently.

📌 Chapters include:

Basics of UPDATE command
Conditional updates using WHERE
Multi-column updates
Updating using expressions
UPDATE with subqueries
UPDATE with JOIN on another table
Using RETURNING to get updated data
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Видео PostgreSQL UPDATE Command: Changing Data With Ease канала Knowledge 360