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Learn PostgreSQL substring() and overlay() functions to extract, replace, and manipulate text efficiently with SQL examples. 🚀

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Description
Welcome to another episode of the PostgreSQL Full Playlist! 🎥 In this tutorial, we’ll explore Substring and Overlay Functions — two powerful tools for text manipulation in PostgreSQL.

Working with text often requires extracting specific portions or replacing parts of strings. PostgreSQL makes this easy with substring() and overlay().

👉 In this video, you’ll learn:

substring() → Extract part of a string by position and length

overlay() → Replace part of a string with new text

How to search within strings and pull out patterns

Practical use cases like extracting names, codes, or formatting values

By the end of this tutorial, you’ll be able to extract and replace text segments quickly and efficiently, making your SQL queries more powerful.

✨ Perfect for developers, analysts, and DBAs working with text-heavy data.

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