1. persist a 1 column table using JPA stackoverflow.com
I've got a table with only one column. It's an Id How can I persist it with JPA? I've tried a entityManager.persist(new OneColumnTable()); and it throws a PersistenceException
2. JPA: How to persist column with SHA1 encryption ? stackoverflow.com
I'm fairly new to JPA (and JPQL by extension). Hopefully, someone will be able to enlighten me with this problem. The query I'm trying to execute ...