How to use the hive replace function?

In Hive, you can use the REPLACE function to replace a specified substring within a string. The syntax of the REPLACE function is as follows:

REPLACE(string, search_string, replacement_string)

In this case, ‘string’ is the main string where the replacement operation will take place, ‘search_string’ is the substring to be replaced, and ‘replacement_string’ is the new string used to replace ‘search_string’.

For example, the following code can be used to demonstrate how to use the REPLACE function to replace a specified substring in a string.

SELECT REPLACE('hello world', 'world', 'universe');

The above code will output “hello universe” by replacing the sub-string “world” from the string “hello world” with “universe”.