Return Data From Form Validation

Hello everybody, i have o lot routines task, like check id element in Database in form validation i can use is_unique or is_not_unique depeneds on my tasks
But most of the times after validation i need make one more request to database to get data with same id, that i validate before, totally i have 2 request first for validate, second to get data.

Is possible while validate return array with data?
With out tricks like sessions