MySQL Forums :: Performance :: count(*) or count(id)


Advanced Search

Re: count(*) or count(id)
Posted by: Ra Nala ()
Date: June 28, 2016 06:26AM

why i need accurate solution is.

I am trying to load millions of records using chunk wise iteration in one of my ETL tool. as of now i used count(*) but now i want to swith it to count(id).

If there are any chances to get wrong results using count(id) ? thats why i am requesting.

Options: ReplyQuote


Subject Views Written By Posted
count(*) or count(id) 700 Ra Nala 06/28/2016 06:22AM
Re: count(*) or count(id) 325 Ra Nala 06/28/2016 06:26AM
Re: count(*) or count(id) 303 Peter Brawley 06/28/2016 05:18PM
Re: count(*) or count(id) 341 Rick James 07/04/2016 01:04PM
Re: count(*) or count(id) 326 Ra Nala 07/06/2016 12:30AM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.