我是新的sqlite.我有一个有3列的表

1. Id

2. FoodName

3. Date and time

(ex: '1' 'Chicken' '2012-08-10 13:54')

我读到某处Android sqlite不提供日期数据类型.

所以我使用文本数据类型在本地数据库中存储日期.它工作正常.

现在我想写一个查询来检索两个日期之间的记录.我试过但我没有得到它.

==>>码

public class FoodDB {

//Database Related Constants

public static final String KEY_ROWID = "id";

public static final String KEY_NAME = "fooditem";

public static final String KEY_TIMESTAMP = "timestamp";

private static final String DATABASE_NAME = "AJFoodDB";

private static final String DATABASE_TABLE = "AJ_Food";

private static final int DATABASE_VERSION = 1;

Cursor c;

long id;

private static final String DATABASE_CREATE =

"create table "+DATABASE_TABLE+" (id integer primary key autoincrement, "

+ KEY_NAME+" text not null,"

+ KEY_TIMESTAMP+" text not null);";

private final Context context;

private DatabaseHelper DBHelper;

private SQLiteDatabase sqlitedatabase;

public FoodDB(Context ctext){

context = ctext;

}

private static class DatabaseHelper extends SQLiteOpenHelper

{

DatabaseHelper(Context context)

{

super(context, DATABASE_NAME, null, DATABASE_VERSION);

}

public void onCreate(SQLiteDatabase db)

{

db.execSQL(DATABASE_CREATE);

}

@Override

public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)

{

db.execSQL("DROP TABLE IF EXISTS titles");

onCreate(db);

}

}

//Insert Row

public void insertSSFiltersDetails(String keyname, String timestamp){

try

{

DBHelper = new DatabaseHelper(context);

sqlitedatabase = DBHelper.getWritableDatabase();

insertRow(keyname, timestamp);

sqlitedatabase.close();

} catch (Exception e) {

System.out.println("Error from inserting data->"+e.toString());

}

}

public long insertRow(String keyname, String timestamp){

ContentValues initialValues = new ContentValues();

initialValues.put(KEY_NAME, keyname);

initialValues.put(KEY_TIMESTAMP, timestamp);

return sqlitedatabase.insert(DATABASE_TABLE, null, initialValues);

}

//Close Data Base

public void closeDBHelper(){

if(DBHelper != null){

DBHelper.close();

}

if (c != null) {

c.close();

c = null;

}

} }

查询和表格

????从AJ_Food中选择*;

1|rice |8/12/2011 16:11

2|Rice |8/13/2012 11:42

3|chicken|8/13/2012 11:42

4|Prawans|8/13/2012 11:43