Add hibernate-jpa module: 40 runnable Hibernate 7 / JPA interview answers on PostgreSQL 16

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cfo2K4u4rF18QsPXPFnytf

hibernate-jpa/output/q06-dirty-checking-flush.txt

@@ -0,0 +1,8 @@
+change a managed entity, no save call:
+SQL> select e1_0.id,e1_0.city,e1_0.zip,e1_0.department_id,e1_0.level,e1_0.name,e1_0.salary from Employee e1_0 where e1_0.id=?
+SQL> update Employee set city=?,zip=?,department_id=?,level=?,name=?,salary=? where id=?
+count visible inside the transaction (AUTO flush before the query): 2
+persist then query:
+SQL> select nextval('Employee_SEQ')
+SQL> insert into Employee (city,zip,department_id,level,name,salary,id) values (?,?,?,?,?,?,?)
+SQL> select count(e1_0.id) from Employee e1_0