Question

What I am trying to achieve is retrieve records from SQLite database which are in the range of 3 days before current date and 3 days after current date including current date.

how to do this,please suggest some example to try out.

Answer 1

First the column in which you store the date should be an long type. This column will store the milliseconds from epoch for the date.

Now for Query

    Calendar calendar = Calendar.getInstance(); // This will give you the current time.
    // Removing the timestamp from current time to point to todays date
    calendar.set(Calendar.HOUR_OF_DAY, 0);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 0);
    calendar.add(Calendar.DATE, -3); // Will subtract 3 days from today.
    Date beforeThreeDays = calendar.getTime();
    calendar.add(Calendar.DATE, 6); // Will be your 3 days after today
    Date afterThreeDays = calendar.getTime();

    db.query("Table", null, "YOUR_DATE_COLUMN >= ? AND YOUR_DATE_COLUMN <= ?", new String[] { beforeThreeDays.getTime() + "", afterThreeDays.getTime() + "" }, null, null, null);