DENSE_RANK « Analytical Functions « Oracle PL / SQL

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Oracle PL / SQL » Analytical Functions » DENSE_RANK

1.	DENSE_RANK()rank items, leaves no gaps when there is a tie
2.	Deal with Null in Rank
3.	Deal with Null in dense_rank
4.	DENSE_RANK() with NULLS FIRST
5.	DENSE_RANK() with NULLS LAST
6.	DENSE_RANK function
7.	Use DENSE_RANK() to get the top rank
8.	Compare rank() and dense_rank()
9.	dense_rank() over (order by comm desc nulls last)
10.	Use rank and dense_rank in subquery
11.	decode dense_rank
12.	dense_rank() over ( partition by deptno order by sal desc )
13.	rank and dense_rank with group by

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