How to store longitude and latitude in database. MySQL won't go further than -99.9999999 [closed]

Answer 1

You set it to DECIMAL(10,8) with the number -117.1779216. MySQL reads this as -117.17792160 because it needs 8 digits of precision, but you said it should only have 10 digits, so anything over 99 makes it 11 digits and invalid.