原生SQL: select `user`.id, `user`.`name`,dept.name deptName,sum(sd.score) SumScore from `user` LEFT JOINscore_detail sdON`user`.id = sd.user_id LEFT JOIN department deptON`user`.department_id = dept.id GROUP BY `user`.`id` ORDER BY sum(sd.score); 经过查阅多
详细语法官网去学习 -->> http://docs.spring.io/spring-data/jpa/docs/current/reference/html/#reference Query creation Generally the query creation mechanism for JPA works as described in Query methods. Here’s a short example of what a JPA query method translat
@Query注解的用法(Spring Data JPA) 参考文章:http://www.tuicool.com/articles/jQJBNv . 一个使用@Query注解的简单例子 @Query(value = "select name,author,price from Book b where b.price>?1 and b.price<?2") List<Book> findByPriceRange(long price1, long price2)
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "create table t_s_depart (id varchar(255) not null, primary key (id)) engine=MyISAM" via JDBC Statement at org.hibernate.tool.schema.internal.exec.GenerationTargetToDa
使用 :param的方式来传递参数,下面举个例子 @PersistenceContext EntityManager em @Override public List<Map> ajaxRelationByCompanyUUID(String companyUUID, String ajaxQuery,List<Integer> types, Integer fetchSize) { String sql = "select * from Company w