[英]How to INSERT using a SELECT in Hibernate
I need to implement the following request in hibernate:我需要在休眠中实现以下请求:
insert into my_table(....,max_column)
values(...,(select max(id) from special_table where ....))
How to do that in hibernate, using annotations?如何在休眠中使用注释做到这一点? special_table may be not a child or dependency of my_table, just a subselect. special_table 可能不是 my_table 的子项或依赖项,只是一个子选择。
You can use the INSERT INTO ... SELECT ... feature :您可以使用INSERT INTO ... SELECT ... 功能:
int updateCount = session.createQuery("""
insert into MyEntity(
...,
max_column
)
select
...,
max(id)
from SpecialEntity
""")
.executeUpdate();
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