Question

我已经搜索了各种论坛和网站，我认为我在代码中犯的错误不是使用Bind Variable。不确定这是否是唯一的出路，但经过大量研究后我认为可能就是这样。

以下是我正在使用的代码：

create or replace    
PROCEDURE CUBE_VIEW (Var_dt varchar2 default '')    
AUTHID CURRENT_USER    
IS    
Start_Date number;    
End_Date number;    
Var Date;    
BEGIN    
  If Var_dt is null then    
  Var := SYSDATE;    
  Else    
  Var := to_date(Var_dt);    
  end if;

  select TO_NUMBER(TO_CHAR(TRUNC(TRUNC(TO_DATE((select ADD_MONTHS((select TO_DATE(Var,'DD-
MON-YY') + (6-TO_NUMBER(TO_CHAR(TO_DATE(Var,'DD-MON-YY')+1,'D'))) from dual),-34) from dual),'DD-MON-YY'),'MM')-1,'MM'),'YYMMDD')) into Start_Date from dual;

  select TO_NUMBER(TO_CHAR(TRUNC(TO_DATE((select ADD_MONTHS((select TO_DATE(Var,'DD-MON-YY') + (6-TO_NUMBER(TO_CHAR(TO_DATE(Var,'DD-MON-YY')+1,'D'))) from dual),-1) from dual),'DD-MON-YY'),'MM')-1,'YYMMDD')) into End_Date from dual;

  DBMS_OUTPUT.PUT_LINE('Start Date is ' || Start_Date);

  DBMS_OUTPUT.PUT_LINE('End Date is ' || End_Date);

  execute immediate 'CREATE OR REPLACE VIEW F_SURVEY_YESTERDAY AS SELECT FLIGHTDATE FROM F_SURVEY_MULTICOL WHERE FLIGHTDATE BETWEEN Start_Date AND End_Date';

  execute immediate 'CREATE OR REPLACE VIEW RESPONSE_YESTERDAY AS SELECT * FROM RESPONSE_SMALL WHERE FLIGHTDATE BETWEEN Start_Date AND End_Date';

end CUBE_VIEW;

代码成功符合，但是当我执行代码时，这是我得到的错误。

错误：

*Connecting to the database LocalEnvironment.
ORA-00904: "END_DATE": invalid identifier
ORA-06512: at "TESTING.CUBE_VIEW", line 17
ORA-06512: at line 6
Start Date is 90301
End Date is 111231
Process exited.
Disconnecting from the database LocalEnvironment.*

当我对值进行硬编码时，它工作正常，但是当我从过程生成值时，它会中断。有解决方案吗

create or replace
PROCEDURE CUBE_VIEW (VAR_DT IN VARCHAR2 DEFAULT '')
AUTHID CURRENT_USER
AS
START_DATE NUMBER;
END_DATE NUMBER;    
VAR DATE;
BEGIN
IF VAR_DT IS NULL THEN
VAR:= SYSDATE;
ELSE
VAR:= TO_DATE(VAR_DT);
END IF;
SELECT TO_NUMBER(TO_CHAR(TRUNC(TRUNC(TO_DATE((SELECT ADD_MONTHS((SELECT TO_DATE(VAR,'DD-MON-YY') + (6-TO_NUMBER(TO_CHAR(TO_DATE(VAR,'DD-MON-YY')+1,'D'))) FROM DUAL),-34) FROM DUAL),'DD-MON-YY'),'MM')-1,'MM'),'YYMMDD')) INTO START_DATE FROM DUAL;
SELECT TO_NUMBER(TO_CHAR(TRUNC(TRUNC(TO_DATE((SELECT ADD_MONTHS((SELECT TO_DATE(VAR,'DD-MON-YY') + (6-TO_NUMBER(TO_CHAR(TO_DATE(VAR,'DD-MON-YY')+1,'D'))) FROM DUAL),-1) FROM DUAL),'DD-MON-YY'),'MM')-1,'MM'),'YYMMDD')) INTO END_DATE FROM DUAL;
DBMS_OUTPUT.PUT_LINE('START DATE IS ' || START_DATE);
DBMS_OUTPUT.PUT_LINE('END DATE IS ' || END_DATE);
EXECUTE IMMEDIATE 'CREATE OR REPLACE VIEW RESPONSE_YESTERDAY AS SELECT * FROM RESPONSE_SMALL WHERE FLIGHTDATE BETWEEN' ||START_DATE|| 'AND' ||END_DATE;
END CUBE_VIEW;
/

这是我在这里发布之后我的查询累了，但仍然没有用!!

Answer 1

最后必须将Start_Date和End_Date从动态SQL中删除：

execute immediate 'CREATE OR REPLACE VIEW F_SURVEY_YESTERDAY AS SELECT FLIGHTDATE FROM F_SURVEY_MULTICOL WHERE FLIGHTDATE BETWEEN '||Start_Date||' AND '||End_Date;

execute immediate 'CREATE OR REPLACE VIEW RESPONSE_YESTERDAY AS SELECT * FROM RESPONSE_SMALL WHERE FLIGHTDATE BETWEEN '||Start_Date||' AND '||End_Date;

但请注意，这些是number个变量，而不是date，因此除非您更改此内容，否则可能会有其他问题。

编辑：根据要求提供适用于我的完整代码。但是，它取决于FLIGHTDATE列的类型为NUMBER。该代码有效，但您可能想要查看为什么您传递的是VARCHAR2而不是DATE，为什么START_DATE和END_DATE是NUMBER而不是DATE {1}}。它肯定会节省大量的铸件并使这些选择更容易维护。

create or replace procedure CUBE_VIEW(VAR_DT varchar2 default '')
  authid current_user is
  START_DATE   number;

  END_DATE     number;

  VAR          date;
begin
  if VAR_DT is null then
    VAR := sysdate;
  else
    VAR := to_date(VAR_DT);
  end if;

  select to_number(
           to_char(
             trunc(
               trunc(
                 to_date(
                   (select add_months(
                             (select to_date(VAR, 'DD- MON-YY')
                                     + (6
                                        - to_number(
                                            to_char(
                                              to_date(VAR, 'DD-MON-YY') + 1
                                             ,'D')))
                                from dual)
                            ,-34)
                      from dual)
                  ,'DD-MON-YY')
                ,'MM')
               - 1
              ,'MM')
            ,'YYMMDD'))
    into START_DATE
    from dual;

  select to_number(
           to_char(
             trunc(
               to_date(
                 (select add_months(
                           (select to_date(VAR, 'DD-MON-YY')
                                   + (6
                                      - to_number(
                                          to_char(
                                            to_date(VAR, 'DD-MON-YY') + 1
                                           ,'D')))
                              from dual)
                          ,-1)
                    from dual)
                ,'DD-MON-YY')
              ,'MM')
             - 1
            ,'YYMMDD'))
    into END_DATE
    from dual;

  dbms_output.PUT_LINE('Start Date is ' || START_DATE);

  dbms_output.PUT_LINE('End Date is ' || END_DATE);

  execute immediate 'CREATE OR REPLACE VIEW F_SURVEY_YESTERDAY AS SELECT FLIGHTDATE FROM F_SURVEY_MULTICOL WHERE FLIGHTDATE BETWEEN '
                   || START_DATE
                   || ' AND '
                   || END_DATE;

  execute immediate 'CREATE OR REPLACE VIEW RESPONSE_YESTERDAY AS SELECT * FROM RESPONSE_SMALL WHERE FLIGHTDATE BETWEEN '
                   || START_DATE
                   || ' AND '
                   || END_DATE;
end CUBE_VIEW;
/

pl / sql过程出错：无法使用绑定变量

1 个答案: