[트러블슈팅] More than one row with the given identifier was found

에러내용

ERROR 1092 --- [nio-8080-exec-1] c.r.d.api.service.drug.DrugServiceImpl   : More than one row with the given identifier was found: 18304, for class: com.roller.doc.db.entity.DrugDesc; nested exception is org.hibernate.HibernateException: More than one row with the given identifier was found: 18304, for class: com.roller.doc.db.entity.DrugDesc

 

해결

OneToOne으로 매핑 시켜놨는데 테이블 조회 시 연관된 테이블에 중복 데이터가 있어서 발생한 에러였다.

OneToMany를 사용하여 해결할 수도 있지만, DB 설계상 OneToOne으로 하는 것이 맞았다.

DB에서 중복된 데이터를 찾아 삭제해 주었다.

아래는 DB에서 중복된 데이터를 조회하는 쿼리이다.

SELECT distinct count(*), drug_id FROM drug_desc GROUP BY drug_id HAVING count(*) > 1 ;

중복된 데이터를 찾아 삭제해 주었다.