In this post, you’ll learn more about the Oracle ErrorORA-30688: maximum program calling depth exceeded with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-30688: maximum program calling depth exceeded
Reason for the Error ORA-30688: maximum program calling depth exceeded
Your program contains a set of calls that are too deep to be handled. Only transitions between the different execution engines (SQL, PL/SQL, and Java) count in reaching this limit; calls within the same engine don’t count.
How to fix the Error ORA-30688: maximum program calling depth exceeded ?
You can fix this error in Oracle by following the below steps
Restructure your program so as to not call so deeply. Perhaps some recursion can be replaced with iteration.