android sqlite 查询数据库的总条数

	/**
	 * 查询数据库中的总条数.
	 * @return
	 */
	public long allCaseNum( ){
		String sql = "select count(*) from info";
		Cursor cursor = db.rawQuery(sql, null);
		cursor.moveToFirst();
		long count = cursor.getLong(0);
		cursor.close();
		return count;
	}

	/**
	 * 查询数据库中的没有解决的条数.
	 * @return
	 */
	public long queryUndisposeCase( ){
		String sql = "select count(*) from info where handleStatus not in (?)";
		Cursor cursor = db.rawQuery(sql, new String []{"1"});
		cursor.moveToFirst();
		//获得某一列的长度
		long count = cursor.getLong(0);
		cursor.close();
		return count;
	}