Myql visit the official website to download https://www.mysql.com/
Note my.ini remove the plugin configuration
1, double the maximum of the stored value 16, may be provided to retain several decimal places,
such as double (10,2), the left and right sides of the digits of the decimal point can not add more than 10
2, the maximum decimal value of 38 is stored, may be provided to retain several decimal places,
such as decimal (10,2) is stored: the left is the maximum value 7, designate decimal 2 decimal places, add up to a maximum of 10 position,
Left and right sides of the combined number of decimal digits is not more than 10
