CIH, also known as Chernobyl or Spacefiller, is a Microsoft Windows 9x computer virus which first emerged in 1998. It is one of the most damaging viruses, overwriting critical information on infected system drives, and more importantly, in most cases overwriting the system BIOS.
long: The long data type is a 64-bit two's complement integer. The signed long has a minimum value of -263 and a maximum value of 263-1. In Java SE 8 and later, you can use the long data type to represent an unsigned 64-bit long, which has a minimum value of 0 and a maximum value of 264-1. Use this data type when you need a range of values wider than those provided by int.
Datatype for phone number: VARCHAR, INT or BIGINT? So this will be the dummy question of the year but I need to ask since is not the first time I pass through this. Take a look at the column from_number which is a VARCHAR(45) right now but it will hold a phone number. Since I don't know how many numbers a phone could have all over the world then I am trying to cover almost all of them.