How to query the length of a string in MySQL?

You can use the built-in MySQL function LENGTH() to query the length of a string.

For example, if you want to query the length of a string in a table, you can use the following statement:

SELECT LENGTH(column_name) FROM table_name;

In this case, column_name represents the field to be queried, and table_name represents the table to be queried.

To inquire about the length of a string, you can simply use the following statement:

SELECT LENGTH('string');

In this case, string is the string to be checked for length.

Please note that the LENGTH() function returns the byte length of a string, not the number of characters. For non-ASCII characters, one character may take up multiple bytes of storage. If you need to count characters, you can use the CHAR_LENGTH() function.