row_number and partition by in Mysql

Are row_number and partition by available in MySQL? Answer is NO.
Microsoft SQL Server support row_number and partition by to find one unique record from a set of duplicate records. We can also set the order by to get one unique record.

MySQL doesn’t provide this feature directly. We can achieve this by using an inline variable for SELECT statements.

In this post, I provide you full demonstration to perform this exercise.

I have also prepared script to insert sample duplicate records and create one stored procedure to find only unique record base on giving order by.

Below is a full demonstration:

Results:

MySQLUniuqeRecords


Please share your ideas and opinions about this topic with me, your contribution will add true value to this topic.
If anyone has doubts on this topic then please do let me know by leaving comments or send me an email.

If you like this post, then please share it with others.
Please follow dbrnd.com, I will share my experience towards the success of Database Research and Development Activity.

I put up a post every day, please keep reading and learning.
Discover Yourself, Happy Blogging !
Anvesh M. Patel.

More from dbrnd.com

  • Calculation of Rank in MySQL QueryAugust 29, 2015 Calculation of Rank in MySQL Query In this post, I demonstrate the calculation of Rank in MySQL query.The RANK() available in Microsoft SQL Server and MySQL doesn't have any […]
  • Find top N records for each group in MySQLAugust 30, 2015 Find top N records for each group in MySQL In this post, I am giving you a full demonstration on finding top N records for each group in MySQL.Today morning, I was working on one […]
  • MySQL: How to get Max Value for each group?October 1, 2016 MySQL: How to get Max Value for each group? In this post, I am giving you a full demonstration on finding max value for each group of records in MySQL.Today morning, I was working on […]

Leave a Reply

Be the First to Comment!

Notify of
avatar
wpDiscuz