delete method
Implementation
Future<int> delete(dbName) async {
Directory documentsDirectory = await getApplicationDocumentsDirectory();
String path = join(documentsDirectory.path, "$dbName.db");
Database _database = await openDatabase(path, version: _databaseVersion);
Database db = _database;
try {
print("data will be deleted");
return await db
.delete(dbName + '1', where: '${dbName}_key = ?', whereArgs: [1]);
} catch (exception) {
print('no data where found');
throw Exception(exception.toString());
}
}