To measure the length of a string in bytes, the operator used is . . . . . . . .

Solution (By Examveda Team)

This question asks you about how to find out the length of a string in bytes in MySQL. Bytes are the basic units of data storage in computers.
Let's look at the options:
Option A: CHAR_LENGTH()
This function counts the number of characters in a string. It doesn't tell you the length in bytes, which is what we need.
Option B: LENGTH()
This is the correct answer! The LENGTH() function tells you the length of a string in bytes. This is what we were looking for.
Option C: LEN()
This function is not available in MySQL.
Option D: SIZE()
The SIZE() function is used to get the size of a table or an index, not a string.
In conclusion, the answer is Option B: LENGTH().