Update some specific field of an entity in android Room

Question

I am using android room persistence library for my new project. I want to update some field of table. I have tried like in my Dao -

// Method 1         


        

Answer 1

I want to know how can I update some field(not all) like method 1 where id = 1

Use @Query, as you did in Method 2.

is too long query in my case because I have many field in my entity

Then have smaller entities. Or, do not update fields individually, but instead have more coarse-grained interactions with the database.

IOW, there is nothing in Room itself that will do what you seek.

UPDATE 2020-09-15: Room now has partial entity support, which can help with this scenario. See this answer for more.