Query the date when password has changed?

> OS: RHES 4
> DB: 10g R2
>
> We have setup multiple profiles for different users. All but one
> profile is setup with expiration dates. The one profile that does not
> have an expiration date is used for application servers. Since the
> application accounts are mission critical the business does not want
> the password to expire. My dilemma is that I'm trying to determine
> when a users password has NOT changed in the past 30 days. Is there a
> way to query when the last time the password was changed.?
>
> Thanks,
>
> Mark
>

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