[Koha] Global Updating of Patron messaging preferences

Hi I have recently imported close to 15 000 patrons records. I am interested in a script or SQL query that would enable me to modify Patron Messaging Preferences. Kind Regards, Admire Mutsikiwa ICT Projects Manager Libraries University of Zimbabwe <Tel:+263-4-303276> Tel:+263-4-303276 "It is easy to dodge our responsibilities, but we cannot dodge the consequences of dodging our responsibilities." Josiah Charles Stamp, 1880-1941, former director of the Bank of England