Question

我正在尝试使用order by和group by同时进行查询但我发出以下错误：

ORA-00979：不是GROUP BY表达式

这是查询的代码：

  @Query("select distinct p from PointSpreadsheets p left join fetch p.shlSpreadsheetRegistersList srl" +
        "  WHERE (:BUAPP is null OR srl.buApprobation = :BUAPP)" +
        " AND (:STATUS is null OR p.idStatus = :STATUS)" +
        " AND (:CCAPP is null OR srl.ccApprobation = :CCAPP)" +
        " AND (:EMPLOYEE is null OR p.idEmployee = :EMPLOYEE)" +
        " AND (:CCLIST is null or srl.idCostCenter  = :CCLIST)" +
        " AND (p.idEmployee.idBusinessUnit IN (:BU))" +
        " AND (p.referencePeriod.idReferencePeriod IN :PERIODS)"
        + " GROUP BY"
        + " p.buApprobation, p.ccApprobation, p.dateBuApprobation,"
        + " p.dateCcApprobation, p.finalDate, p.idEmployee, p.idPeriodicity,"
        + " p.idSpreadsheet, p.idStatus, p.initialDate, p.referencePeriod"
        + " ORDER BY p.idEmployee")    
public List<PointSpreadsheets> PointSpreadsheetFilter(
        @Param("STATUS") BigDecimal status,
        @Param("BUAPP") BigDecimal buApprobation,
        @Param("CCAPP") BigDecimal ccApprobation,
        @Param("PERIODS") List<BigDecimal> periods,
        @Param("EMPLOYEE") Employees employee,
        @Param("BU") List<BusinessUnits> businessUnits,
        @Param("CCLIST") CostCenter cc);

Answer 1

由于没有聚合功能，例如 COUNT 或其他内容， GROUP BY 对数据库没有任何意义。可怜的数据库想知道“组什么？”并发脾气。您当然可以在同一个SQL语句中使用 ORDER BY 和 GROUP BY 。

ORDER BY与GROUP BY查询，使用JPA和Hibernate

1 个答案: