Question entretien chez Mymind infotech : Delete duplicate records in a table

Mymind infotech

Delete duplicate records in a table

Utilisateur anonyme

9 juil. 2015

I answers this question like a normal way, but they want query which processing time is very low.

Utilisateur anonyme

27 sept. 2018

They are asking to to this with hashmap or by using set in java. So the time will be low and loop don't have to execute each and every time