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.

Answer 2

The declaration syntax for a DECIMAL column is DECIMAL(M,D). The ranges of values for the arguments in MySQL 5.1 are as follows:

M is the maximum number of digits (the precision). It has a range of 1 to 65. (Older versions of MySQL permitted a range of 1 to 254.)

D is the number of digits to the right of the decimal point (the scale). It has a range of 0 to 30 and must be no larger than M.

Taken from the manual :D

Answer 3

Precision (10) - Scale (8) = 2

2 is the number of digits you can have to the left of the decimal

If you increase the precision, you can have more digits to the left of the decimal.