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In MySQL, there can only be one column per table with the AUTO_INCREMENT attribute. It should also have an integer data type. The AUTO_INCREMENT is also allowed for floating point types.
‘CGI.pm’ supports an object oriented style of use which allows to invoke its functions without importing the names. To do this, a use statement is included and a CGI object is created.
In order to write a Perl script that uses the ‘CGI.pm’ module, a ‘use CGI’ statement is included near the beginning of the script that imports the function names of the module.
‘CHARACTER SET’ can be abbreviated into ‘CHARSET’ and can be used in the same contexts and statements where ‘CHARACTER SET’ is used. ‘charset’ is the server-supported character set.
The MySQL server allows simultaneous use of multiple character sets. A given character set is allowed to have one or more collations. It can be chosen according to the need of the database.