'''''BINARY''''' - the field collation will be binary, e.g. ''utf8_bin'';

'''''UNSIGNED''''' -  the database table field will have positive or 0 numeric values;

'''''UNSIGNED ZEROFILL''''' - the field will have positive or 0 numeric values and leading zeros will be added to a number;

'''''ON UPDATE CURRENT_TIMESTAMP''''' - the current timestamp is the default value for the data type field, and is automatically updated;