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POError with android DBAdapter class
 

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  1. POError with android DBAdapter class
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    <p>here is the error from the logcat of my program.</p> <p>06-24 01:35:04.213: INFO/ActivityManager(587): Starting activity: Intent { comp={one.two/one.two.Arrival} } 06-24 01:35:04.521: ERROR/DBDroid(1048): android.database.sqlite.SQLiteException: no such table: port: , while compiling: SELECT KEY_STATUS, KEY_ID, KEY_ARRIVAL, KEY_DESTINATION, KEY_FERRY FROM ferry 06-24 01:35:05.026: INFO/ActivityManager(587): Displayed activity one.two/.Arrival: 805 ms</p> <p>It seems that it is stated that there is no table called port. But i do have a table called port placed into the emulator , under data/data/one.two/databases</p> <p>And here is my partial code of DBAdapter:</p> <pre><code> public class DBAdapter extends ListActivity { public static String KEY_STATUS = "status"; public static String KEY_ID = "id"; public static String KEY_ARRIVAL = "arrival"; public static String KEY_DESTINATION = "destination"; public static String KEY_FERRY = "ferry"; private static final String DATABASE_NAME = "ferry"; private static final String DATABASE_TABLE = "port"; private static final int DATABASE_VERSION = 1; private static Context context; private static DatabaseHelper DBHelper; private static SQLiteDatabase db; </code></pre> <p>By the way does anyone here knows what does this method do :</p> <pre><code>public DBAdapter(Context ctx) { this.context = ctx; DBHelper = new DatabaseHelper(context); } private static class DatabaseHelper extends SQLiteOpenHelper { DatabaseHelper(Context context) { super(context, "ferry", null, 1); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } @Override public void onCreate(SQLiteDatabase db) { } }//end DatabaseHelper // ---opens the database--- public DBAdapter open() throws SQLException { db = DBHelper.getWritableDatabase(); return this; } // ---closes the database--- public void close() { DBHelper.close(); } </code></pre> <p>Thank you.</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
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    1. USUser358218
    1. USUser358218
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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    2. PO
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      1. POError with android DBAdapter class
      1. This table or related slice is empty.
      1. VTUpMod
    1. COUse your constants DATABASE_NAME and DATABASE_VERSION when calling super() in DatabaseHelper constructor.
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      1. POError with android DBAdapter class
      1. USGawcio
    2. COSorry i don't really understand, do you mean by something like this? super(context, "port" , null, 1) Thank you for your help.
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      1. POError with android DBAdapter class
      1. USUser358218
    3. COYou've defined some constants in the class - use it. super(context, DATABASE_NAME, null, DATABASE_VERSION);
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      1. POError with android DBAdapter class
      1. USGawcio
 

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