create table t1 (
pk int primary key,
a int,
b int,
c char(10),
d decimal(10, 3),
e real
);
insert into t1 values
( 1, 0, 1,    'one',    0.1,  0.001),
( 2, 0, 2,    'two',    0.2,  0.002),
( 3, 0, 3,    'three',  0.3,  0.003),
( 4, 1, 2,    'three',  0.4,  0.004),
( 5, 1, 1,    'two',    0.5,  0.005),
( 6, 1, 1,    'one',    0.6,  0.006),
( 7, 2, NULL, 'n_one',  0.5,  0.007),
( 8, 2, 1,    'n_two',  NULL, 0.008),
( 9, 2, 2,    NULL,     0.7,  0.009),
(10, 2, 0,    'n_four', 0.8,  0.010),
(11, 2, 10,   NULL,     0.9,  NULL);
select pk,
nth_value(pk, 1) over (order by pk),
nth_value(pk, 2) over (order by pk),
nth_value(pk, 0) over (order by pk),
nth_value(pk, -1) over (order by pk),
nth_value(pk, -2) over (order by pk)
from t1
order by pk asc;
pk	nth_value(pk, 1) over (order by pk)	nth_value(pk, 2) over (order by pk)	nth_value(pk, 0) over (order by pk)	nth_value(pk, -1) over (order by pk)	nth_value(pk, -2) over (order by pk)
1	1	NULL	NULL	NULL	NULL
2	1	2	NULL	NULL	NULL
3	1	2	NULL	NULL	NULL
4	1	2	NULL	NULL	NULL
5	1	2	NULL	NULL	NULL
6	1	2	NULL	NULL	NULL
7	1	2	NULL	NULL	NULL
8	1	2	NULL	NULL	NULL
9	1	2	NULL	NULL	NULL
10	1	2	NULL	NULL	NULL
11	1	2	NULL	NULL	NULL
select pk,
nth_value(pk, pk) over (order by pk),
nth_value(pk / 0.1, pk) over (order by pk)
from t1
order by pk asc;
pk	nth_value(pk, pk) over (order by pk)	nth_value(pk / 0.1, pk) over (order by pk)
1	1	10.0000
2	2	20.0000
3	3	30.0000
4	4	40.0000
5	5	50.0000
6	6	60.0000
7	7	70.0000
8	8	80.0000
9	9	90.0000
10	10	100.0000
11	11	110.0000
select pk,
a,
nth_value(pk, pk) over (partition by a order by pk),
nth_value(pk, a + 1) over (partition by a order by pk)
from t1
order by pk asc;
pk	a	nth_value(pk, pk) over (partition by a order by pk)	nth_value(pk, a + 1) over (partition by a order by pk)
1	0	1	1
2	0	2	1
3	0	3	1
4	1	NULL	NULL
5	1	NULL	5
6	1	NULL	5
7	2	NULL	NULL
8	2	NULL	NULL
9	2	NULL	9
10	2	NULL	9
11	2	NULL	9
select pk,
a,
nth_value(pk, 1) over (partition by a order by pk ROWS between 1 preceding and 1 following)
from t1;
pk	a	nth_value(pk, 1) over (partition by a order by pk ROWS between 1 preceding and 1 following)
1	0	1
2	0	1
3	0	2
4	1	4
5	1	4
6	1	5
7	2	7
8	2	7
9	2	8
10	2	9
11	2	10
select pk,
a,
nth_value(a, 1) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 2) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 3) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 4) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 5) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 6) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 7) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 8) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 9) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 10) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 11) over (order by a RANGE BETWEEN 1 preceding and 1 following),
nth_value(a, 12) over (order by a RANGE BETWEEN 1 preceding and 1 following)
from t1
order by pk asc;
pk	a	nth_value(a, 1) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 2) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 3) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 4) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 5) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 6) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 7) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 8) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 9) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 10) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 11) over (order by a RANGE BETWEEN 1 preceding and 1 following)	nth_value(a, 12) over (order by a RANGE BETWEEN 1 preceding and 1 following)
1	0	0	0	0	1	1	1	NULL	NULL	NULL	NULL	NULL	NULL
2	0	0	0	0	1	1	1	NULL	NULL	NULL	NULL	NULL	NULL
3	0	0	0	0	1	1	1	NULL	NULL	NULL	NULL	NULL	NULL
4	1	0	0	0	1	1	1	2	2	2	2	2	NULL
5	1	0	0	0	1	1	1	2	2	2	2	2	NULL
6	1	0	0	0	1	1	1	2	2	2	2	2	NULL
7	2	1	1	1	2	2	2	2	2	NULL	NULL	NULL	NULL
8	2	1	1	1	2	2	2	2	2	NULL	NULL	NULL	NULL
9	2	1	1	1	2	2	2	2	2	NULL	NULL	NULL	NULL
10	2	1	1	1	2	2	2	2	2	NULL	NULL	NULL	NULL
11	2	1	1	1	2	2	2	2	2	NULL	NULL	NULL	NULL
drop table t1;