ANDROID NON SQLITE DATABASE TUTORIAL UPDATE
ANDROID NON SQLITE DATABASE TUTORIAL ANDROID
ANDROID NON SQLITE DATABASE TUTORIAL CODE

Import 7.app.AlertDialogĬlass MainActivity : AppCompatActivity() 'Ĭreate a layout for display AlertDialog for update record. The val databaseHandler: DatabaseHandler= DatabaseHandler(this) creates the instance of DatabaseHandler class calls the SQLite database logic. The viewRecord() function reads the record and displays them into ListView, the updateRecord() function updates the record on the basis on id, and deleteRecord() function deletes the record. In this class, the saveRecord() function saves the records.

ANDROID NON SQLITE DATABASE TUTORIAL CODE

In this file, we added three EditText, one ListView, four Button for saving, view, update and delete operation.Īdd the following code in the MainActivity.kt class. In the activity_main.xml file add the following code.

ANDROID NON SQLITE DATABASE TUTORIAL ANDROID

In this example, we will perform create, read, update and delete operation on Android SQLite database. Kotlin Android SQLite Database CRUD Example Query(String table, String columns, String selection, String selectionArgs, String groupBy, String having, String orderBy): Cursor Update(String table, ContentValues values, String whereClause, String whereArgs): Int The third argument specifies the values to be stored. If the second argument is null, android will store null values if values are empty. The table specifies the table name, nullColumnHack doesn't allow completely null values. Insert(String table, String nullColumnHack, ContentValues values): Long Some of them are as follows: MethodĮxecutes the SQL query, not a select query. There are many methods in the SQLiteDatabase class. It contains methods to be performed on the SQLite database such as create, update, delete, select etc. Public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion)Ĭalled when the database needs to downgrade. Public abstract void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)Ĭalled when the database needs to upgrade. Public abstract void onCreate(SQLiteDatabase db)Ĭalled only once when the database is created for the first time. There are several methods available in the SQLiteOpenHelper class.

SQLite is embedded relational database management system. Our SQLite Tutorial is designed for beginners and professionals both. SQLiteOpenHelper(context: Context, name: String, factory: SQLiteDatabase.CursorFactory, version: Int, errorHandler: DatabaseErrorHandler)Ĭreates an object of SQLiteOpenHelper for creating, opening and managing the database. SQLite Tutorial provides basic and advanced concepts of SQLite. SQLiteOpenHelper(context: Context, name: String, factory: SQLiteDatabase.CursorFactory, version: Int)Ĭreates an object of SQLiteOpenHelper for creating, opening and managing the database.

There are two constructors of SQLiteOpenHelper class. For performing any database operation, you have to provide the implementation of onCreate() and onUpgrade() methods of SQLiteOpenHelper class. The class is used for database creation and version management. The SQLiteOpenHelper class provides the functionality to use the SQLite database. So, there is no need to perform any database setup or administration task. SQLite is an open-source relational database that is used to perform database operations on Android devices such as storing, manipulating or retrieving persistent data from the database.īy default SQLite database is embedded in android. Next → ← prev Kotlin Android SQLite Tutorial

Android non sqlite database tutorial