How can one replace characters in a string using Oracle?

To replace characters in a string, you can use the REPLACE function in Oracle SQL. This function takes three parameters: the original string, the character to be replaced, and the character to replace it with. Here is an example:

SELECT REPLACE('Hello, World!', ',', ';') AS replaced_string
FROM dual;

After running the above SQL statement, the output will be the replaced string: “Hello; World!”. Here, the commas in the original string are replaced with semicolons. You can change the characters to be replaced and the characters to be replaced with as needed.