Plsql ora-000947在流水线功能中

我创建了一些返回表的函数。我创建记录，然后将记录作为表

CREATE OR REPLACE PACKAGE FOR_SELECT AS TYPE NK IS RECORD (
  SHT   NUMBER,
  VVD   NUMBER,
  NEKOM NUMBER,
  N_GOL NUMBER);
TYPE NK_T IS TABLE OF NK;  FUNCTION NEK_SLU_PR(W_KOD VARCHAR2)
RETURN NK_T PIPELINED;  END FOR_SELECT;

我的简单功能是：

CREATE OR REPLACE PACKAGE BODY FOR_SELECT  AS   FUNCTION NEK_SLU_PR(W_KOD VARCHAR2)
RETURN NK_T PIPELINED
AS
  REC   NK_T;

  SHT   NUMBER;
  VVD   NUMBER;
  NEKOM NUMBER;
  N_GOL NUMBER;
BEGIN
  SHT := 3;
  VVD := 4;
  NEKOM := 5;
  N_GOL := 6;


  SELECT SHT,
         VVD,
         NEKOM,
         N_GOL
    INTO REC
    FROM DUAL;

  PIPE ROW (REC);
  RETURN;
END NEK_SLU_PR;END FOR_SELECT;

---

我有4个变量，所有select in变量都有表类型，但ora-000947-值不够（我做错了什么？

REC

的类型不正确

它应该是

NK

，而不是

NK\u T

，因为您处理的是单个记录

--试试这个，它将帮助您了解流水线函数

CREATE OR REPLACE TYPE NK IS OBJECT (
  SHT   NUMBER,
  VVD   NUMBER,
  NEKOM NUMBER,
  N_GOL NUMBER);

CREATE OR REPLACE TYPE NK_T IS TABLE OF NK;


CREATE OR REPLACE FUNCTION NEK_SLU_PR(
    W_KOD VARCHAR2)
  RETURN NK_T PIPELINED
AS
  REC NK_T;
  SHT   NUMBER;
  VVD   NUMBER;
  NEKOM NUMBER;
  N_GOL NUMBER;
BEGIN
  SHT   := 3;
  VVD   := 4;
  NEKOM := 5;
  N_GOL := 6;
  SELECT NK(SHT, VVD, NEKOM, N_GOL) BULK COLLECT INTO  REC FROM DUAL;
  FOR I IN 1..REC.COUNT 
    LOOP    
        PIPE ROW( NK( REC(I).sht,REC(I).vvd, REC(I).nekom, REC(I).n_gol ) ) ;
    END LOOP ;
  RETURN;
END NEK_SLU_PR;

---------------------------------------------OUTPUT-------------------------------------------

select * from table(NEK_SLU_PR('av'));


SHT VVD NEKOM   N_GOL
3      4     5     6


---------------------------------------------OUTPUT-------------------------------------------