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CHAPTER 28 • MYSQL STORAGE ENGINES AND DATA TYPESwww.it-ebooks.infoNumeric Data TypesNumerous types are available for representing numerical data.■ Note Many of the numeric data types allow you to constrain the maximum display size, denoted by the Mparameter following the type name in the following definitions. Many of the floating-point types allow you tospecify the number of digits that should follow the decimal point, denoted by the D parameter. These parameters,along with related attributes, are optional and are indicated as such by their enclosure in square brackets.BOOL, BOOLEANBOOL and BOOLEAN are just aliases for TINYINT(1), intended for assignments of either 0 or 1. This datatype was added in version 4.1.0.BIGINT [(M)]The BIGINT data type offers MySQL’s largest integer range, supporting a signed range of –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 and an unsigned range of 0 to18,446,744,073,709,551,615.INT [(M)] [UNSIGNED] [ZEROFILL]The INT data type offers MySQL’s second-largest integer range, supporting a signed range of –2,147,483,648 to 2,147,483,647 and an unsigned range of 0 to 4,294,967,295.MEDIUMINT [(M)] [UNSIGNED] [ZEROFILL]The MEDIUMINT data type offers MySQL’s third-largest integer range, supporting a signed range of –8,388,608 to 8,388,607 and an unsigned range of 0 to 16,777,215.SMALLINT [(M)] [UNSIGNED] [ZEROFILL]The SMALLINT data type offers MySQL’s fourth-largest integer range, supporting a signed range of –32,768to 32,767 and an unsigned range of 0 to 65,535.TINYINT [(M)] [UNSIGNED] [ZEROFILL]The TINYINT data type is MySQL’s smallest integer range, supporting a signed range of –128 to 127 and anunsigned range of 0 to 255.540