11. Top SQL String Functions | LEN, SUBSTRING, REPLACE, CHARINDEX & More | SQL Tutorial
In this video, you'll learn about String Functions in SQL Server — one of the most essential concepts for manipulating and transforming text data directly within your queries!
We covered all key string functions with clear explanations, syntax, and real-world examples, and did a deep dive into the most asked interview questions around SQL string functions.
📌 What You Learned in This Video:
✅ What are String Functions in SQL Server?
✅ ASCII — Returns the ASCII code value of the leftmost character.
✅ CHAR — A string function that converts an int ASCII code to a character.
✅ CHARINDEX — Find the Position of a Substring.
✅ LEFT & RIGHT — Extract Characters from Start or End.
✅ LEN — Get the Length of a String.
✅ UPPER & LOWER — Convert Text to Uppercase or Lowercase.
✅ LTRIM & RTRIM — Remove Leading and Trailing Spaces.
✅ REPLACE — Replace Occurrences of a Substring.
✅ REPLICATE — Repeat a String N Number of Times.
✅ REVERSE — Reverse the Characters of a String.
✅ SPACE — Returns a string of repeated spaces.
✅ SUBSTRING — Extract a Portion of a String.
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• 11. Top SQL String Functions | LEN, SUBSTR...
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