Filter last submit

Hi

I use contact form 7 to send data result in CFDB, with contact form 7 the user can send several time the same form with diferents datas…(normaly once but if the people send twice it’s a probleme)
How it’s possible to have the form result with the last submit ? Something like filter=”submit_time>last submit”, it’s for avoid to have two datas in the same case…

Tanks in advance
Damien

https://ww.wp.xz.cn/plugins/contact-form-7-to-database-extension/