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9,062 PointsWe have an app used to track all known alien races. We are going to release a new version that allows users to select a
We have an app used to track all known alien races. We are going to release a new version that allows users to select a home planet as well. Start by incrementing the version of the database
public class AlienSQLiteHelper extends SQLiteOpenHelper {
public static final String DB_NAME = "aliens.db";
public static final int DB_VERSION = 2;
public static final String ALIENS_TABLE = "ALIENS";
public static final String COLUMN_NAME = "NAME";
public static final String COLUMN_TYPE = "TYPE";
public static final String CREATE_ALIENS = "CREATE TABLE " + ALIENS_TABLE + " (" +
"_id INTEGER PRIMARY KEY AUTOINCREMENT," +
COLUMN_NAME + " TEXT, " +
COLUMN_TYPE + " TEXT)";
public static final String DB_ALTER = "ALTER TABLE " + ALIENS_TABLE + " ADD COLUMN ";
public AlienSQLiteHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
@Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
sqLiteDatabase.execSQL(CREATE_ALIENS);
}
@Override
public void onUpgrade(SQLiteDatabase database, int oldVersion, int newVersion) {
switch (oldVersion) {
case 1:sqLiteDatabase.execSQL(DB_ALTER);
}
}
}
1 Answer
Safet Garic
14,469 PointsWhich challenge can you not solve? Notice in the last method you are using sqLiteDatabase, which is out of scope for this method. You should use database.execSQL(DB_ALTER)
House Trigo
36,620 PointsHouse Trigo
36,620 PointsWhere's your home planet column?