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MYSQL String operations

LENGTH()


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

CHAR_LENGTH()


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


Conclusion

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.



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