Databases
StackOverflow2013
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  1. PO
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    <p>You must have _id column in your table. this is the main reason behind it.</p> <pre><code>protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.clientview); cdb=new ClientDatabase(this); Bundle bundle = getIntent().getExtras(); stt = bundle.getString("stuff"); a=stt.substring(0,(stt.indexOf("@"))); a1=stt.substring((stt.indexOf("@")+1), (stt.length())); cdb.open(); clientviewlist(); } private void clientviewlist() { // TODO Auto-generated method stub Cursor cur=cdb.getallclient(a,a1); String[] columnn=new String[]{ClientDatabase.CLIENT_CODE,ClientDatabase.CLIENT_NAME}; int[] to=new int[]{R.id.client1,R.id.client2}; dataaDapter=new SimpleCursorAdapter(this,R.layout.clintlist,cur,columnn,to,0); final ListView listview=(ListView)findViewById(R.id.listView1); listview.setAdapter(dataaDapter); listview.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView&lt;?&gt; arg0, View arg1, int positions, long id) { tv = (TextView)arg1.findViewById(R.id.client1); st=tv.getText().toString(); System.out.println(st); Intent intent =new Intent(Client.this,Server.class); // System.out.println(selectedFromList+"------------444444444444444444"); } }); </code></pre> <p>and database code is</p> <pre><code>public class ClientDatabase { //public static final String CLIENT_ID="_id"; public static final String CLIENT_CODE="_id"; public static final String DISTT_CODE="_distcode"; public static final String CLIENT_NAME="_name"; public static final String TOWN_CODE="_townid"; private static final String DATABASE_NAME="combinedclient.db"; private static final String TABLE_NAME="clientdata"; private static final int DATABASE_VERSION=1; public static SQLiteDatabase db; private final Context context; private DatabaseHelper dbheLper; private static final String TAG = "ClientsDbAdapter"; public ClientDatabase(Context context){ this.context=context; dbheLper=new DatabaseHelper(context); } public class DatabaseHelper extends SQLiteOpenHelper{ DatabaseHelper(Context context) { super(context, DATABASE_NAME, null,DATABASE_VERSION); // TODO Auto-generated constructor stub } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL("CREATE TABLE " + TABLE_NAME +"(" + CLIENT_CODE + " TEXT NOT NULL," + CLIENT_NAME + " TEXT NOT NULL," + DISTT_CODE + " INTEGER NOT NULL," + TOWN_CODE + " INTEGER NOT NULL)"); }// "CREATE TABLE " + TABLE_NAME +"(" + TOWN_ID + " INTEGER ," + TOWN_CODE + " INTEGER NOT NULL," + TOWN_NAME + " TEXT NOT NULL," + DISTT_CODE + " TEXT NOT NULL," + TOWNDISTT_CODE + " INTEGER PRIMARY KEY)"; @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub db.execSQL("DROP TABLE If EXISTS" +TABLE_NAME); } } public ClientDatabase open() throws SQLException{ db=dbheLper.getWritableDatabase(); return this; // TODO Auto-generated method stub } public Cursor getallclient(String diss, String tiw) { // TODO Auto-generated method stub Cursor nCursor=db.query(TABLE_NAME, new String[] {CLIENT_CODE,CLIENT_NAME},DISTT_CODE + "='" + diss + "' AND " + TOWN_CODE +"='" + tiw + "'", null, null, null, null); if (nCursor != null) { nCursor.moveToFirst(); } return nCursor; } public void close() { </code></pre> <p>dbheLper.close();<br> }</p> <pre><code>public void insertvalues(String id, String namee, String dist, String townv) { try { ContentValues initial=new ContentValues(); initial.put(DISTT_CODE,dist); initial.put(CLIENT_CODE,id); initial.put(CLIENT_NAME,namee); initial.put(TOWN_CODE,townv); db.insert(TABLE_NAME, null, initial); } catch (Exception e) { // TODO: handle exception Log.d("Error is===", e.toString()); System.out.println("error in insertinggggggggggggg"); } } public void delete() { // TODO Auto-generated method stub db.delete(TABLE_NAME,null, null); } public String getclient(String clientcode) { // TODO Auto-generated method stub Cursor cursor=db.query(TABLE_NAME, null,CLIENT_CODE + "='" + clientcode + "'", null, null, null, null); if(cursor.getCount()&lt;1) // UserName Not Exist { cursor.close(); return "not exist"; } cursor.moveToFirst(); String name= cursor.getString(cursor.getColumnIndex(CLIENT_NAME)); cursor.close(); System.out.println(name); return name; } </code></pre>
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    1. This table or related slice is empty.
    1. POSimpleCursor Adapter
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      1. PTQuestion
    1. PTAnswer
    1. USnitesh
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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. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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