Question

我可以在不使用RefCursor的情况下定义存储过程吗？（比如＆＃34;返回refcursor＆＃34;）

我不想使用OracleDbType.RefCursor，因为它不会在其他数据库中作为dbparameter发送。

DbParameter.DbType = OracleDbType.RefCursor;不支持

我不想定义＆＃34; retval IN OUT SYS_REFCURSOR＆＃34;在下面的代码中。还有另一种方式吗？

CREATE OR REPLACE procedure SYSTEM.customer_select_row(
    p_email IN CUSTOMER.Email%TYPE,
    p_password IN CUSTOMER."Password"%TYPE,
    retval IN OUT SYS_REFCURSOR
  )
IS
BEGIN
  OPEN retval FOR
    SELECT CustomerId, FirstName, LastName FROM CUSTOMER
    WHERE Email = p_email AND "Password" = p_password 

END customer_select_row;

Answer 1

您可以使用管道功能

这是一个可以像桌子一样工作的功能

你可以这样称呼它

SELECT * 
  FROM TABLE(TEST_PIPELINE.STOCKPIVOT(10));

TEST_PIPELINE.STOCKPIVOT（10）是一个函数

你可以这样建立：

create or replace PACKAGE TEST_PIPELINE AS

  -- here you declare a type record 
  type t_record is record
  (
    field_1     VARCHAR2(100),
    field_2      VARCHAR2(100));

  -- declare a table type from your previously created type 
  TYPE t_collection IS TABLE OF t_record;

  -- declare that the function will return the collection pipelined
  FUNCTION StockPivot(P_LINES NUMBER) RETURN t_collection PIPELINED;

  END;

/

create or replace PACKAGE BODY TEST_PIPELINE IS

FUNCTION StockPivot(P_LINES NUMBER) RETURN t_collection PIPELINED IS

  -- declare here a type of the record
  T_LINE T_RECORD;

  BEGIN

    -- here is a loop example for insert some lines on pipeline
    FOR I IN 1..P_LINES LOOP

      -- inser data on your line this way
      T_LINE.field_1      := 'LINE - ' || I;
      T_LINE.field_2      := 'LINE - ' || I;

      -- then insert insert the line for result (this kind of functions should not have a return statement)
      PIPE ROW (T_LINE );

    END LOOP;

  END;

END;

oracle存储过程返回结果集

1 个答案: