Deals Of The Week - hours only!Up to 80% off on all courses and bundles.-Close

Wrap course as a gift

Prepare your gift and double-check it looks just right.

Form validation errors

Recipient's Name:
Recipient's Email:
Your Message (Optional):
Proceed to Checkout

Window Functions in PostgreSQL

Introduction
Ranking functions
Selecting n-th row
Summary

Instruction

Perfect!

As we said, RANK() will always leave gaps in numbering when more than 1 row share the same value. You can change that behavior by using another function: DENSE_RANK():

SELECT
  name,
  platform,
  editor_rating,
  DENSE_RANK() OVER(ORDER BY editor_rating)
FROM game;

DENSE_RANK gives a 'dense' rank indeed, i.e. there are no gaps in numbering.

Exercise

Click Run and check code to run the modified example.

We've now got three rows with rank 1, followed by a fourth row with rank 2. That's the difference between RANK() and DENSE_RANK() – the latter never leaves gaps.