Question

我想创建一个包，在包中我们有一个带参数的函数。我有TIME_DIM的表，该表的粒度是一个记录/秒。我在装箱时遇到错误，任何一个人帮我解决这个问题。

create or replace
PACKAGE PKG_TIME_DIM
IS
 Function FUN_TIME_DESC
   ( TIME_IN IN varchar2 )
   RETURN varchar2
IS
   TIMEDESC varchar2;
   CURSOR c1
   IS
     SELECT TIME_DESC
     from TIME_DIM
     where TIME_DESC = TIME_IN;
BEGIN
   open c1;
   fetch c1 into TIME_DESC;
   if c1%notfound then
      TIMEDESC := 9999;
   end if;
  close c1;
RETURN TIMEDESC;
END;
END;

Answer 1

我不知道你得到了什么错误，但我看到了几个问题：通过声明TIMEDESC变量，缺少varchar2的大小：例如：TIMEDESC varchar2(2000);或更好

TIMEDESC TIME_DIM.TIME_DESC%TYPE;

以下陈述中有一个便条

fetch c1 into TIME_DESC;

您已将TIMEDESC而非TIME_DESC声明为变量名称

可能是以下是一个问题

TIMEDESC := 9999;

TIMEDESC的类型为varchar，但您为其指定了编号

Answer 2

这里有很多错误。您似乎在声明包含代码的包规范。你需要一个规格和身体。我已经对每个有问题的行添加了评论：

-- Note: "CREATE OR REPLACE PACKAGE" = The specification
CREATE OR REPLACE PACKAGE PKG_TIME_DIM
IS

    FUNCTION FUN_TIME_DESC (TIME_IN IN VARCHAR2) RETURN VARCHAR2;

END PKG_TIME_DIM;
/

-- Note: "CREATE OR REPLACE PACKAGE BODY" = Keyword BODY = the body
CREATE OR REPLACE PACKAGE BODY PKG_TIME_DIM
IS
    FUNCTION FUN_TIME_DESC (TIME_IN IN VARCHAR2) RETURN VARCHAR2
    IS
        TIMEDESC  VARCHAR2(100 CHAR); -- Need to define length of this variable in characters or bytes

        CURSOR c1 IS
          SELECT TIME_DESC
            FROM TIME_DIM
           WHERE TIME_DESC = TIME_IN;
    BEGIN
        OPEN c1;
        FETCH c1 INTO TIMEDESC; -- Changed variable name to match the name you defined

        IF c1%NotFound THEN
            TIMEDESC := '9999'; -- Put quotes around this since this is a VARCHAR
        END IF;

        CLOSE c1;

        RETURN TIMEDESC;

    END FUN_TIME_DESC;

END PKG_TIME_DIM;
/

Oracle程序包错误

2 个答案: