Skip to content
Programming101
Programming101

Learn everything about programming

  • Home
  • CS Subjects
    • IoT – Internet of Things
    • Digital Communication
    • Human Values
  • Programming Tutorials
    • C Programming
    • Data structures and Algorithms
  • HackerRank Solutions
    • HackerRank Algorithms Solutions
    • HackerRank C problems solutions
    • HackerRank C++ problems solutions
    • HackerRank Java problems solutions
    • HackerRank Python problems solutions
Programming101
Programming101

Learn everything about programming

Leetcode Consecutive Numbers problem solution

YASH PAL, 31 July 2024

In this Leetcode Consecutive Numbers problem solution, we need to write an SQL query to find all numbers that appear at least three times consecutively. Return the result table in any order.

Leetcode Consecutive Numbers problem solution

Problem solution.

select distinct num as ConsecutiveNums
from
(select num, id - cast(row_number() over (partition by num order by id) as SIGNED) rdiff
from
logs)t
group by num,rdiff
having count(num)>=3

Problem solution in MYSQL.

with df as (
    select id
        , num
        , lag(num) over (order by id) as prev_num
        , lead(num) over (order by id) as next_num
    from logs
    )
select distinct num as `ConsecutiveNums`
from df
where num = prev_num
    and num = next_num

Problem solution in Oracle.

select distinct num ConsecutiveNums from
(select num,lead(num,1) over(order by ID) next_num,lead(num,2) over(order by ID) next_next_num
from logs)
where num = next_num and next_num = next_next_num;

coding problems

Post navigation

Previous post
Next post
  • How AI Is Revolutionizing Personalized Learning in Schools
  • GTA 5 is the Game of the Year for 2024 and 2025
  • Hackerrank Day 5 loops 30 days of code solution
  • Hackerrank Day 6 Lets Review 30 days of code solution
  • Hackerrank Day 14 scope 30 days of code solution
©2025 Programming101 | WordPress Theme by SuperbThemes