Difference between orderBy of hibernate and Collections.sort()

Rajshree Rai :

What is the difference between using order by of hibernate and Collections.sort() of Java? The time complexity of Collections.sort() is O(nlogn) and using orderBy must be O(1). However, the db processing must have some overhead too. Is it okay to use Collections.sort() in cases where using orderBy is not possible?

Stefan :

You can use either one. Generally they should both be O(nlogn) (since the database also has to apply a sorting algorithm and it is not better than the sorting algorithm in Collections).

I would use the database's orderBy if possible (*), since you then can limit the amount of data that are sent from the database (at least in cases where you'r only interested in the first part of the matching data).

(*) There are situations where you want you want to implement a "weird" sort order (ie "sort by the 2nd letter of the third word"), and then it is better to do it in Java, but in most cases orderBy is sufficient and hence preferrable.

Guess you like

Origin http://43.154.161.224:23101/article/api/json?id=284653&siteId=1

Difference between orderBy of hibernate and Collections.sort()

The difference between hibernate and mybatis?

And the difference between Hibernate and Mybatis

The difference between hibernate and mybatis

The difference between Mybatis and Hibernate

[hibernate] The difference between get() and load() in Hibernate

[hibernate] The difference between get() and load() in Hibernate

The difference between hibernate and iterate the list

Difference between Hibernate openSession() and getCurrentSession()

Difference between @Entity and @Table in hibernate

What is the difference between MyBatis and Hibernate?

Unterschied zwischen orderBy von Hibernate und Collections.sort ()

The difference between ibatis and mybatis, the difference between hibernate, mybatis, and JDBC

The difference between ibatis and mybatis, the difference between hibernate, mybatis, and JDBC

What is the difference between JPA and Hibernate? [shut down]

Compare the difference between JPA and Hibernate and Mybatis

The difference between hibernate and Mybatis/ibatis, why choose?

The difference between get and load methods in hibernate

The difference between get and load methods in hibernate

Difference between openSession and getCurrentSession methods in Hibernate SessionFactory

What is the difference between Hibernate SpringDataJpa and Mybatis?

Разница между OrderBy из спящего режима и Collections.sort ()

Comparison of the difference between collections and arrays

The difference between Collection and Collections in Java

The difference between hibernate and mybatis: JAVA face questions 3

The difference between Mybatis and Hibernate, advantages and disadvantages, application scenarios

The difference between get and load in hibernate's delayed loading

The difference between sort and sorted in python

The difference between sort by and order by in Hive

java8 sort orderBy