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Efficient String Manipulation With MySQL's SUBSTRING_INDEX Function

SUBSTRING_INDEX simplifies string manipulation in MySQL using delimiters. Extract substrings from URLs, file extensions & more with this essential function.

String manipulation is integral to database work, and MySQL’s SUBSTRING_INDEX function is designed to simplify it. Using delimiters, it allows precise extraction of substrings for a variety of tasks. 

  
  
  Examples of SUBSTRING_INDEX

Below are some real-world use cases of SUBSTRING_INDEX to demonstrate its flexibility
Extracting part of a URL
Split a URL to isolate specific segments like the domain.

SELECT SUBSTRING_INDEX('www.mysql.com', '.', 2); 

    
    

    
    




Pulling file extensions
Retrieve the extension from a file’s name effortlessly.

SELECT SUBSTRING_INDEX('file.pdf',...