Java Spring Boot无法用于自定义JPA请求
有此代码:Java Spring Boot无法用于自定义JPA请求,java,spring,postgresql,spring-boot,Java,Spring,Postgresql,Spring Boot,有此代码: @Query(value = "SELECT t FROM trainings t ORDER BY RANDOM() LIMIT 8", nativeQuery = true) List<Training> findRandom(); System.out.println(trainingRepo.findRandom()); 执行此代码时: @Query(value = "SELECT t FROM trainings t ORDER BY RANDOM() LI
@Query(value = "SELECT t FROM trainings t ORDER BY RANDOM() LIMIT 8", nativeQuery = true)
List<Training> findRandom();
System.out.println(trainingRepo.findRandom());
执行此代码时:
@Query(value = "SELECT t FROM trainings t ORDER BY RANDOM() LIMIT 8", nativeQuery = true)
List<Training> findRandom();
System.out.println(trainingRepo.findRandom());
我的问题在哪里?如何解决它?这里不需要使用t,因为它不是JPQL,而是您设置为nativeQuery=true的本机查询
将查询替换为SELECT*FROM ORDER BY RANDOM LIMIT 8此处不需要使用t,因为它不是JPQL,而是您设置为nativeQuery=true的本机查询
将查询替换为SELECT*FROM ORDER BY RANDOM LIMIT 8是否在db lvl上测试了此查询?是否不返回id字段?为什么不直接执行select*?您在db lvl上测试过这个查询吗?您没有返回id字段吗?为什么不直接执行select*?或者用select t*替换select t,或者用select t替换select t*