Oracle find_in_set Alternative: INSTR & REGEXP

There is no built-in find_in_set function in Oracle, which is typically used in MySQL to check if a value is present in a comma-separated string.

In Oracle, similar functionalities can be achieved, like using the INSTR function to locate a string within another string, or utilizing the REGEXP_LIKE function for regular expression matching. However, there is no built-in function that directly replicates the functionality of the find_in_set function.