query
执行sql语句
query($query)
query [string]
The SQL query.
Return: [object] The PDOStatement object.
此方法用于使用复杂的SQL语句，SQL注入问题请参考quote方法
$database->query("CREATE TABLE table (
c1 INT STORAGE DISK,
c2 INT STORAGE MEMORY
) ENGINE NDB;");
$data = $database->query("SELECT email FROM account")->fetchAll();
print_r($data);