Questions And Answers

More Tutorials

MYSQL String operations


Return the length of the string in bytes. Since some characters may be encoded using more than one byte, if you want the length in characters see CHAR_LENGTH()

Syntax: LENGTH(str)

LENGTH('foobar') -- 6
LENGTH('fööbar') -- 8 -- contrast with CHAR_LENGTH(...) = 6


Return the number of characters in the string

Syntax: CHAR_LENGTH(str)

CHAR_LENGTH('foobar') -- 6
CHAR_LENGTH('fööbar') -- 6 -- contrast with LENGTH(...) = 8

Convert the argument to hexadecimal. This is used for strings.

HEX('fööbar') -- 66F6F6626172 -- in "CHARACTER SET latin1" because "F6" is hex for ö
HEX('fööbar') -- 66C3B6C3B6626172 -- in "CHARACTER SET utf8 or utf8mb4" because "C3B6" is hex for ö


In this page (written and validated by ) you learned about MYSQL String operations . What's Next? If you are interested in completing MYSQL tutorial, your next topic will be learning about: MYSQL Date and Time Operations.

Incorrect info or code snippet? We take very seriously the accuracy of the information provided on our website. We also make sure to test all snippets and examples provided for each section. If you find any incorrect information, please send us an email about the issue:

Share On:

Mockstacks was launched to help beginners learn programming languages; the site is optimized with no Ads as, Ads might slow down the performance. We also don't track any personal information; we also don't collect any kind of data unless the user provided us a corrected information. Almost all examples have been tested. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. By using, you agree to have read and accepted our terms of use, cookies and privacy policy.