How to replace characters in a string in MySQL?

In MySQL, you can use the REPLACE function to replace characters in a string. The syntax of the REPLACE function is as follows:

REPLACE(str, from_str, to_str)

In this case, str is the string where the replacement operation will take place, from_str is the character to be replaced, and to_str is the character it will be replaced with.

Here is an example demonstrating how to use the REPLACE function to replace characters in a string.

Suppose there is a table called users with a column named name, and we want to replace all “a” with “b” in the name column. We can use the following SQL statement:

UPDATE users
SET name = REPLACE(name, 'a', 'b');

In this way, all occurrences of “a” in the name column will be replaced with “b”.