0 
CREATE OR REPLACE VIEW POINTS AS
DECLARE
  avgDurationOurFault       number(5);
  avgDurationCustomersFault number(5);
  avgDuration           number(5);

BEGIN

    (select ceil(avg(abs(total_time))) into avgDuration from inquiry);

    select ceil(avg(total_duration))  into avgDurationOurFault
    from
    (
        select customer_no, sum(abs(total_time)) total_duration
        from inquiry
        where cat_id in ('C900', 'C901', 'C902', 'C905', 'C907', 'C908', 'C909')
        GROUP BY customer_no);

    select ceil(avg(total_duration))  into avgDurationCustomersFault
    from
    (
        select customer_no, sum(abs(total_time)) total_duration
        from inquiry
        where cat_id in ('C903','C904', 'C906')
        group by customer_no);

    select t1.customer_no, t1.callPoints, t1.durationPoints, t2.catgPoints, 
          t1.callPoints+t1.durationPoints+t2.catgPoints as totalPoints
    from 
    (
        select customer_no, count(inquiry_id)*avgDuration callPoints , sum(abs(total_time)) durationPoints
        from inquiry 
        group by customer_no
        ) t1

        inner join (

        select customer_no, sum(points) catgPoints
        from
        (
        select customer_no,
            case
                when cat_id in ('C903','C904', 'C906')
                then 0

            when cat_id in ('C900', 'C901', 'C902', 'C905', 'C907', 'C908', 'C909')
                then 2*avgDuration + abs(avgDurationCustomersFault - avgDurationOurFault)

            else
                0

            end as points
            from inquiry
            )
            group by customer_no
            ) t2

            on t1.customer_no = t2.customer_no;


END;
/

--------------------错误如下---------------------------- ----------------------

从命令的第 1 行开始出错：CREATE OR REPLACE VIEW POINTS AS DECLARE avgDurationOurFault number(5) 命令行错误：1 列：32 错误报告：SQL 错误：ORA-00928：缺少 SELECT 关键字 00928。00000 -“缺少 SELECT 关键字" *原因：
*措施：

从命令中的第 4 行开始出错：avgDurationCustomersFault number(5) 错误报告：未知命令

从命令中的第 5 行开始出错：avgDuration number(5) 错误报告：未知命令

从命令中的第 7 行开始出错：

BEGIN

(select ceil(avg(abs(total_time))) into avgDuration from inquiry);

select ceil(avg(total_duration))  into avgDurationOurFault
from
(
    select customer_no, sum(abs(total_time)) total_duration
    from inquiry
    where cat_id in ('C900', 'C901', 'C902', 'C905', 'C907', 'C908', 'C909')
    GROUP BY customer_no);

select ceil(avg(total_duration))  into avgDurationCustomersFault
from
(
    select customer_no, sum(abs(total_time)) total_duration
    from inquiry
    where cat_id in ('C903','C904', 'C906')
    group by customer_no);
select t1.customer_no, t1.callPoints, t1.durationPoints, t2.catgPoints, 
      t1.callPoints+t1.durationPoints+t2.catgPoints as totalPoints
from 
(
    select customer_no, count(inquiry_id)*avgDuration callPoints , sum(abs(total_time)) durationPoints
    from inquiry 
    group by customer_no
    ) t1

    inner join (
    select customer_no, sum(points) catgPoints
    from
    (
    select customer_no,
        case
            when cat_id in ('C903','C904', 'C906')
            then 0

        when cat_id in ('C900', 'C901', 'C902', 'C905', 'C907', 'C908', 'C909')
            then 2*avgDuration + abs(avgDurationCustomersFault - avgDurationOurFault)
        else
            0

        end as points
        from inquiry
        )
        group by customer_no
        ) t2

        on t1.customer_no = t2.customer_no;

结尾;

错误报告：ORA-06550：第 3 行，第 2 列：PLS-00103：在预期以下情况之一时遇到符号“（”：

begin case declare exit for goto if loop mod null pragma raise return select update while with << close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe 符号“update”被替换为“(”继续。ORA -06550：第 3 行，第 37 列：PLS-00103：在预期以下情况之一时遇到符号“INTO”：

. ( , * % & - + / at mod rem as from || The symbol ". was inserted before "I ORA-06550: line 3, column 67: PLS-00103: Encountered the symbol ";" 当期望以下之一时：

设置 ORA-06550：第 30 行，第 3 列：PLS-00103：在预期以下情况之一时遇到符号“INNER”：

, ; 对于有相交减去顺序开始联合的组，
连接 06550。00000 - “行 %s，列 %s：\n%s” *原因：通常是 PL/SQL 编译错误。*行动：

4

2 回答 2

4

视图不能像那样使用 PL/SQL。您必须将所有查询放在一起。类似的东西CREATE OR REPLACE VIEW POINTS AS [one huge sql statement...]。

于 2011-03-23T02:55:19.053 回答
4

采用：

CREATE OR REPLACE VIEW POINTS AS
SELECT a.customer_no, 
       a.callPoints, 
       a.durationPoints,
       a.catgPoints, 
       a.callPoints + a.durationPoints + a.catgPoints as totalPoints
  FROM (SELECT i.customer_no, 
               COUNT(i.inquiry_id) * x.avgDuration AS callPoints, 
               SUM(ABS(i.total_time)) durationPoints,
               SUM(CASE
                     WHEN i.cat_id IN ('C900', 'C901', 'C902', 'C905', 'C907', 'C908', 'C909') THEN 
                       2 * x.avgDuration + ABS(z.avgDurationCustomersFault - y.avgDurationOurFault)
                     ELSE 0
                   END) AS catgpoints
          FROM INQUIRY i
    CROSS JOIN (SELECT CEIL(AVG(ABS(t.total_time))) AS avgDuration 
                  FROM INQUIRY t) x
    CROSS JOIN (SELECT CEIL(AVG(total_duration)) AS avgDurationOurFault
                  FROM (SELECT SUM(ABS(t.total_time)) AS total_duration
                          FROM INQUIRY t
                         WHERE t.cat_id IN ('C900', 'C901', 'C902', 'C905', 'C907', 'C908', 'C909')
                      GROUP BY t.customer_no) y
    CROSS JOIN (SELECT CEIL(AVG(total_duration)) AS avgDurationCustomersFault
                  FROM (SELECT SUM(ABS(t.total_time)) AS total_duration
                          FROM INQUIRY
                         WHERE t.cat_id IN ('C903','C904', 'C906')
                      GROUP BY t.customer_no) z
      GROUP BY i.customer_no) a

通过使用 CASE 语句根据cat_id. 其他人可以用它打高尔夫球。

您的查询的问题是您试图使用多个不相关的 SELECT 语句。视图是单个 SELECT 语句 - 您可以使用子查询、派生表/内联视图等，但它们必须位于单个查询中，就像您在我的示例中看到的那样。您发布的内容更像您在存储过程或函数中找到的内容。你不能像你尝试的那样使用变量，你也不需要——只需要一个 CROSS JOIN。

可以使用子查询分解（AKAWITH子句，CTE），但通常几乎没有性能优势。

于 2011-03-23T03:38:31.527 回答