Spring data jpa. Find max if no result return default value

Question

I\'ve implemented in my spring repository interface:

@Query(\"SELECT max(ch.id) FROM MyEntity ch\")
Long getMaxId();

It works correctly if db i

Answer 1

You can use coalesce like :

@Query("SELECT coalesce(max(ch.id), 0) FROM MyEntity ch")
Long getMaxId();

If there are no data it will return 0 instead of null.