User entity has id,name,age
I use @ Query (nativeQuery = true, value = "select id,name from user")
to find only 2 fields
tells me that age is missing and that I have to find out all the fields in the entity. If I have 100 fields, I need 100. isn"t that a lot of performance? What if I only find out some of the fields and I can bind them with entities?
I don"t want to return List < Object [] >. It"s not intuitive. How do I want to save it with an entity?
then don't use @ Query annotations
you can do this
User findByUserId (Long userId)
use tdo interface to save data
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jpa uses findby query. If the parameter is empty, it is not used as a condition. What can I do? this function is similar to where < if test= xx! = null > column = xx < if > of mybatis. for example, I have a findByNameAndAge (String name,Integer...