The BIGINT data type is used to store BIGINTs, which are integers requiring 8 bytes of storage.
[ UNSIGNED ] BIGINT
The BIGINT data type is an exact numeric data type: its accuracy is preserved after arithmetic operations.
A BIGINT value requires 8 bytes of storage.
The range for signed BIGINT values is -263 to 263 - 1, or -9223372036854775808 to 9223372036854775807.
The range for unsigned BIGINT values is 0 to 264 - 1, or 0 to 18446744073709551615.
By default, the data type is signed.
SQL/2003 Vendor extension.