So to update a record lets say...
I have a current value of 150 and the new value will be 250 now how would I
total them to equal 400?
I was thinking
$sql = "UPDATE $table value1 = value1 + ?
is that correct? how do you update it with simple math?
What about division...
take the current value in the database + the new value divided by another
number, lets say another field
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