使用hibernate在Procedure中使用多个表作为输出参数

Question

CREATE OR REPLACE PACKAGE BODY Pkg_name
IS

PROCEDURE proceure_Name (
Id             IN     Long,
startDate   IN     DATE,
EndDate     IN     DATE,

Table1     OUT    Table1_Name%ROWTYPE,
Table2   OUT    Table2_Name%ROWTYPE,
errormsg           OUT    VARCHAR2)
IS

Record another_Table%ROWTYPE;

我尝试在休眠中调用此过程，如下所示：

Long id = 111111111111111L;
Date startDate = setDateTime("08/31/2023 00:00:00"); 
Date endDate = setDateTime("09/01/2018 00:00:00"); // declaring stored Procedure 
StoredProcedureQuery query = this.em.createStoredProcedureQuery("package_name.procedure_name"); // input parameters 
query.registerStoredProcedureParameter("Id", Long.class, ParameterMode.IN); 
query.setParameter("in_regEntId", id); 
query.registerStoredProcedureParameter("startDate", Date.class, ParameterMode.IN); 
query.setParameter("in_chPeriodStartDate", startDate); 
query.registerStoredProcedureParameter("EndDate", Date.class, ParameterMode.IN); 
query.setParameter("in_chPeriodEndDate", endDate); // register output Parameters 
query.registerStoredProcedureParameter("Table1", Table1_name.class, ParameterMode.OUT); 
query.registerStoredProcedureParameter("Table2", Table2_name.class, ParameterMode.OUT); 
query.registerStoredProcedureParameter("errormsg", String.class, ParameterMode.OUT); // executing the stored Procedure 
query.execute(); // output 

问题：

因此，在注册输出参数时，我收到错误，因为类型 Table1_name 无效，

我不确定我应该在那里给出什么类型。

Answer 1

Nhibernate 不支持从存储过程返回复杂的结构，如

%rowtype

。 将存储过程更改为返回

SYS_REFCUSOR

。 例如：

  PROCEDURE procedure_Name (
    Id        IN     Long,
    startDate IN     DATE,
    EndDate   IN     DATE,
    Table1    OUT    SYS_REFCURSOR,
    Table2    OUT    SYS_REFCURSOR,
    errormsg  OUT    VARCHAR2
  )
  IS
  BEGIN
    //etc....
  END;

然后将您的

nhibernate code

更新为类似的内容：

Long id = 111111111111111L;
Date startDate = setDateTime("08/31/2023 00:00:00"); 
Date endDate = setDateTime("09/01/2018 00:00:00");

StoredProcedureQuery query = this.em.createStoredProcedureQuery("package_name.procedure_name");

query.registerStoredProcedureParameter("Id", Long.class, ParameterMode.IN);
query.setParameter("Id", id);
query.registerStoredProcedureParameter("startDate", Date.class, ParameterMode.IN);
query.setParameter("startDate", startDate);
query.registerStoredProcedureParameter("EndDate", Date.class, ParameterMode.IN);
query.setParameter("EndDate", endDate);

query.registerStoredProcedureParameter("Table1", Class.forName("oracle.jdbc.OracleTypes").getField("CURSOR").get(null).getClass(), ParameterMode.REF_CURSOR);
query.registerStoredProcedureParameter("Table2", Class.forName("oracle.jdbc.OracleTypes").getField("CURSOR").get(null).getClass(), ParameterMode.REF_CURSOR);
query.registerStoredProcedureParameter("errormsg", String.class, ParameterMode.OUT);

query.execute();

// read output parameters
List<Object[]> resultsOfTable1 = query.getResultList();
List<Object[]> resultsOfTable2 = query.getResultList();
String error= query.getOutputParameterValue("errormsg");