Obtaining and setting basic data types(String, int) between Database and Android

Hello guys, We are working on an android project about calender which has a due date so close. In that project, we are trying to create calender and by that calender, user can determine a time interval and in that interval, phone gets its silence mode. When the time finishes, phone gets back to non silent mode again. We need to store datas for each user who will register. (Username, password, hours which he/she determined for silence etc). The tutorials in youtube did not work (or we couldn’t). Any suggestions about database-application relation(Like tutorials or beneficial links)?

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