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result returns more than one elements

Time:03-23

I am getting an error javax.persistence.NonUniqueResultException: result returns more than one elements while getting the EmpID

Bypass oldBypass = bypassService.getByEmployeeId(employee.getId()); //Causing a problem- Method threw 'org.springframework.dao.IncorrectResultSizeDataAccessException' exception.

ByPassService.java

 Bypass getByEmployeeId(Long id);

ByPassServiceImpl.java

 public Bypass getByEmployeeId(Long id) {
        return bypassRepository.findByEmployeeId(id);
    }
@Query("select d from Bypass d where d.employee.id = ?1 and d.isDeleted = 0")
  Bypass findByEmployeeId(Long id)

This is my select statement.

Should i use the ArrayLists maybe ???

CodePudding user response:

Is your query returning only one entry? You could run it separately and check its results. Normally the employee id should be the Primary Key in the employee table and that would enforce uniqueness.

If you don't want the employee id to be unique among your records, then yes, you should expect a collection of entries.

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