- hibernate oneToOne n+1 lazy 구현 http://wonwoo.ml/index.php/post/1566
- jpa summary https://joont92.github.io/jpa/JPQL/
- jpa hibernate spring-data-jpa차이 https://suhwan.dev/2019/02/24/jpa-vs-hibernate-vs-spring-data-jpa/
- jpa Entity life cycle https://www.objectdb.com/java/jpa/persistence/managed
- jpa slice casede등 발표 동영상 https://www.youtube.com/watch?v=rYj8PLIE6-k
- jpa table per class inheritance https://www.logicbig.com/tutorials/java-ee-tutorial/jpa/table-per-class-inheritance.html
- orm queryDSL https://jojoldu.tistory.com/372
- orm jooq https://www.jooq.org/doc/3.7/manual/code-generation/codegen-gradle/