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In MySQL -> INT(10) does not mean a 10-digit number, it means an integer with a display width of 10 digits. The maximum value for an INT in MySQL is 2147483647 (or 4294967295 if unsigned).
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See Also:Mysql Phone Number Data, Database Phone Number Data Type, Verify It Show details
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Phone numbers are made of numbers. Using varchar allows user to store any type of formatting, with ( or not, with - or . and it quickly creates a mess with your data. A phone # format is country dependent, the mask should be tied to the country.
Numeric Data Types Data type Description BIGINT ( size) A large integer. Signed range is from .. ... FLOAT ( size, d) A floating point number. The total numbe ... FLOAT ( p) A floating point number. MySQL uses the ... DOUBLE ( size, d) A normal-size floating point number. The ... 11 more rows ...
To Store Country + area + number separately. You can try using a VARCHAR (20), this allows you the ability to store international phone numbers properly, should that need arise. varchar or text should be the best datatypes for storing mobile numbers I guess. Highly active question.
The data type of a column defines what value the column can hold: integer, character, money, date and time, binary, and so on. MySQL Data Types (Version 8.0) Each column in a database table is required to have a name and a data type. An SQL developer must decide what type of data that will be stored inside each column when creating a table.