I have this page in my site:
www.mysite.com/companies/first-company
I show the data of "First Company"
My "First Company", change your name for "Second Company", so your new url is:
www.mysite.com/companies/second-company
So, url
www.mysite.com/companies/first-company
will redirect(301) to
www.mysite.com/companies/second-company
But, a new company register in my site and wants the first url. I can set first url for new company and notify google for update through send a sitemap file. This update take a time(hour,days..)
While updated in google index is not executed, users can see data of first company in google results, but when click, user will see data of second company.
I have a problem? my ranking can be affected?