Is there any ways to calculate in database cells?

Another way of doing so is using database hooks.

You start by defining an age field of type number.

Then, you click on hooks and add an afterQuery hook, at which you calculate the age and set the value to the field.

For instance, it can look something like the following

export function members_afterQuery(item, options) {
    // getting the age in milliseconds from epoch
    var ageDifMs = Date.now() - item.birthday.getTime();
    // milliseconds from epoch
    var ageDate = new Date(ageDifMs); 
    // converting the milliseconds to an age
    item.age = Math.abs(ageDate.getUTCFullYear() - 1970);
    // we have to return the item when using hooks
    return item;
}

The code was taken from StackOverflow