Spring WebFlux。 从数据库（直接和通量运算符）获取数据有两种方法吗？ 有什么区别？

Question

I use Spring Data and WebFlux. I have two ways to get data from the database.

First way: I can get data using a request like -

Flux(?) findAllByName(String name)

Second way: I can use operators since I use WebFlux

findAll().filter(x -> x.name.equals(name))

What is the difference?
Which one is better?

Answer 1

For Flux(?) findAllByName(String name) filtering happens inside the database that returns only records with a matching name.

For findAll().filter(x -> x.name.equals(name)) you get all the records from the database (table, document collection, ...) and filter them inside your application.

If your database stores gigabytes of data, moving it all around the network is not a viable strategy. Therefore the first variant is preferred.