What is the usage of the “replace” function in Oracle?

The REPLACE function in Oracle is used to replace a substring within a string. It takes three parameters: the source string, the substring to be replaced, and the replacement string. The syntax is as follows:

REPLACE(original string, string to replace, string to replace with)

For example, to replace all instances of “ABC” with “XYZ” in a string, you can use the following statement:

Replace the string ‘ABC’ with ‘XYZ’ in the string ‘ABCDEABC’.

The result will be “XYZDEXYZ”.