How can I resolve the "ROUTINE_USES_SYSTEM_RESERVED_CLASS_NAME" error when creating a function in Databricks SQL?
To resolve the "ROUTINE_USES_SYSTEM_RESERVED_CLASS_NAME" error when creating a function in Databricks SQL, you should rename the class specified in the error message, as it is currently reserved for system use. Here's a step-by-step guide to help you:

1. Identify the class name causing the issue: In the error message, you will find the class name that is causing the problem. For example, if the error message is "The function `my_function` cannot be created because the specified classname ‘com.databricks.system’ is reserved for system use," the class name causing the issue is `com.databricks.system`.

2. Rename the class: Modify the class name in your function definition to a name that is not reserved for system use. Make sure to choose a unique and descriptive name for your class.

3. Recreate the function: After renaming the class, recreate the function in Databricks SQL with the updated class name.

Here's an example of how to modify a function definition with a reserved class name:

Before:
```sql
CREATE FUNCTION my_function()
RETURNS STRING
CLASS 'com.databricks.system.MyClass';
```

After:
```sql
CREATE FUNCTION my_function()
RETURNS STRING
CLASS 'com.mycompany.MyClass';
```

In this example, the class name was changed from `com.databricks.system.MyClass` to `com.mycompany.MyClass`. Make sure to replace these names with your own unique class names.

By following these steps, you should be able to resolve the "ROUTINE_USES_SYSTEM_RESERVED_CLASS_NAME" error and successfully create your function in Databricks SQL.