Cramps in your hand can arise from a number of different causes. Hand cramps develop as a result of conditions affecting muscles and nerves in your hand. Trauma or injury to a nerve in your hand can also cause hand cramps. Even breathing too fast (hyperventilation) can result in hand cramps, as carbon dioxide levels in the blood become too low. Everyday, simple reasons, such as fatigue from overuse, can lead to temporary, acute cramps in the hand.
Just like files that you save on the device's internal storage, Android stores your database in private disk space that's associated application. Your data is secure, because by default this area is not accessible to other applications. A useful set of APIs is available in the SQLiteOpenHelper class.
MyISAM and InnoDB are two most commonly used storage engines of MySQL database. However, MyISAM is the default storage engine chosen by MySQL database, when creating a new table. The major differences between these two storage engines are : InnoDB supports transactions which is not supported by tables which use MyISAM storage engine. InnoDB has row-level locking, relational integrity i.e. supports foreign keys, which is not possible in MyISAM.