SQLException：结果集来自更新。没有数据。春季数据

Question

我写了一个MySQL程序

CREATE DEFINER=`root`@`localhost` PROCEDURE `calculate_user_rank`()
BEGIN

DROP TABLE IF EXISTS `user_rank`;

CREATE TABLE `user_rank`
  AS (SELECT 
user.id, 
(SELECT COUNT(*)+1 FROM user_profile WHERE points>x.points) AS rank FROM 
user_profile x, user WHERE user.user_profile_id = x.id);

UPDATE user, user_rank SET user.rank = user_rank.rank WHERE user.id = user_rank.id;

END

此存储过程根据表points中的列计算用户排名user_profile，使用user_rank数据创建一个新表并更新user表rank中的表列user_rank。

当我从 MySQL Workbench 执行此存储过程时，它工作正常。JpaRepository但是当我从as调用它时：

@Transactional
@Query(nativeQuery = true, value = "CALL calculate_user_rank()")
void setUserRank();

它抛出异常：

Caused by: org.hibernate.exception.GenericJDBCException: could not execute query
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.loader.Loader.doList(Loader.java:2620)
at org.hibernate.loader.Loader.doList(Loader.java:2600)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2429)
at org.hibernate.loader.Loader.list(Loader.java:2424)
...
Caused by: java.sql.SQLException: ResultSet is from UPDATE. No Data.
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
at com.mysql.jdbc.ResultSetImpl.next(ResultSetImpl.java:6995)

是不是程序有问题？

Answer 1

不是注释@Query，而是@Procedure：

@Transactional
@Procedure(procedureName = "calculate_user_rank")
void setUserRank();