180. Consecutive Numbers

Write a SQL query to find all numbers that appear at least three times consecutively.

+----+-----+
| Id | Num |
+----+-----+
| 1  |  1  |
| 2  |  1  |
| 3  |  1  |
| 4  |  2  |
| 5  |  1  |
| 6  |  2  |
| 7  |  2  |
+----+-----+

For example, given the above

Logs

table,

1

is the only number that appears consecutively for at least three times.

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MySQL:

# Write your MySQL query statement below

select
distinct
a.Num as ConsecutiveNums
from
Logs a,
Logs b,
Logs c
where
a.Id = b.Id + 1
and a.Id = c.Id + 2
and a.Num = b.Num
and a.Num = c.Num
;