


What will the MySQL CHAR_LENGTH() function return if no arguments are provided?
Aug 28, 2023 pm 02:45 PMIn this case, it means that we provide an empty string as an argument to the CHAR_LENGTH() function. If an empty string is supplied, it returns 0 because the CHAR_LENGTH() function has no characters to count.
Example
mysql> Select CHAR_LENGTH(''); +-----------------+ | CHAR_LENGTH('') | +-----------------+ | 0 | +-----------------+ 1 row in set (0.00 sec)
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