WITH 子句不再有效。 "exceeded call limit on IO usage"

Question

我有一些代码以前运行没问题。但是现在当我运行我收到

ORA-02395: exceeded call limit on IO usage 02395. 00000 - "exceeded call limit on IO usage"

错误。谁能向我解释为什么我的代码会抛出这个错误。我无权增加任何用户权限。我试过运行ning 这段代码并限制 with 子句中的数据量并且运行没问题。所以我猜那里需要进行一些修改。

WITH NEW_REP_DATA AS (
    select period,manager rep,comp,sum(a) "GT99",sum(b) "90TO99",sum(c) "80TO89",sum(d) "70TO79",sum(e) "LT70",sum(f) "NA" from (
    select period
    ,rep_code
    ,manager
    --,nvl(a,0)+nvl(b,0)+nvl(c,0)+nvl(d,0)+nvl(e,0)+nvl(f,0) cnt
    ,comp,
    nvl(a,0) a,nvl(b,0) b, nvl(c,0) c, nvl(d,0) d,nvl(e,0) e,nvl(f,0) f
    from
    (select period,rep_code,manager, comp,max(case when bucket='>99' then cnt end) a,
    max(case when bucket='90TO99' then cnt end) b,
    max(case when bucket='80TO89' then cnt end) c,
    max(case when bucket= '70TO79' then cnt end) d,
    max(case when bucket='LT70' then cnt end) e,
    max(case when bucket='NA' then cnt end) f
    from (
    select period,rep_code,manager, comp,bucket,
    --count(unique rep_code)
    count( distinct rep_code) cnt
    --cnt
    from(
    select * from (select
    unique period
    ,MANAGER
    ,"PayeeID" rep_code
    ,comp
    ,cytd cytd_a
    ,cytp cytd_p,
    nvl(case when cytp > 0 then
      case when round((cytd/cytp),3) > .99 then '>99'
           when round((cytd/cytp),3) between .891 and .99 then '90TO99'
           when round((cytd/cytp),3) between .791 and .89 then '80TO89'
           when round((cytd/cytp),3) between .7 and .79 then '70TO79'
           when round((cytd/cytp),3) < .7 then 'LT70'
      end
    when  cytp = 0 and cytd > 0 then '>99'
    else 'NA'
    end,'NA') as bucket
    from (
    select aaa.period
    ,aaa."PayeeID"
    ,aaa."Reports_to" MANAGER
    ,aaa."Component" comp,
    aaa."Current_YTD_Actual" cytd,
    aaa."Current_YTD_Plan" cytp
    from nbr_var_data aaa
    where aaa."Comp_Plan_Name" not in ('MISC_COMP','GM_2017')
    AND "Comp_Plan_Name" not in ('MISC_COMP')
    AND "Comp_Plan_Name" not LIKE '%GM%'
    and aaa.period = (select max(aaa.period) from  Nbr_Var_Data)
    ))
    )
    where 1=1
    group by period, rep_code, comp, bucket, manager )
    group by period, rep_code, comp, manager )) group by period, manager, comp)

    SELECT DISTINCT
    dc.rep PID
    ,dc.period
    ,ee.PAYEE_NAM
    ,dc.comp
    ,Dc."GT99"
    ,Dc."90TO99"
    ,Dc."80TO89"
    ,Dc."70TO79"
    ,Dc."LT70"
    ,Dc."NA"
    ,Ee.Parent_Payee_Id REPORT_TO_PAYEE_ID
    ,Ee.Parent_Payee_Nam REPORT_TO_NAME
    FROM (SELECT
    --period ,
    --empl_id ,
    gg.payee_id ,
    gg.payee_nam ,
    --lvl ,
    ff.parent_payee_id ,
    ff.PARENT_PAYEE_NAM
    --parent_lvl ,
    --mnth_disp
    FROM (SELECT DISTINCT
    dd.period
    ,dd.PARENT_PAYEE_ID
    ,ee.PAYEE_NAM PARENT_PAYEE_NAM
    from (
    SELECT DISTINCT
      PERIOD,
      PARENT_PAYEE_ID
    FROM FI_CHANNEL_HIER) dd
    left join FI_CHANNEL_HIER ee
    on dd.PARENT_PAYEE_ID = ee.PAYEE_ID
    WHERE DD.PERIOD = (select max(DD.PERIOD) from  FI_CHANNEL_HIER )) ff
    LEFT JOIN FI_CHANNEL_HIER gg
    ON ff.PARENT_PAYEE_ID = gg.PARENT_PAYEE_ID) ee,
    NEW_REP_DATA dc
    WHERE EE.PAYEE_ID = DC.Rep
    ;

Answer 1

ORA-02395 当您的查询超过您的用户配置文件中设置的 LOGICAL_READS_PER_CALL 阈值时发生。这就是当您限制子查询返回的数据量时问题消失的原因。

为什么过去不会发生这种情况的两种可能的解释：

表格包含的数据比以前多。
您的 DBA 实施了新的用户配置文件（或使现有的更严格）。

显而易见的解决方案是与 DBA 协商。

否则您将需要重构查询以减少它扫描的块数。做需要了解您的数据模型、您的业务逻辑和您的数据特征（数量、分布、使用）。

显然，这需要了解和访问您的系统，因此我们无法提供帮助。

Answer 2

WITH NEW_REP_DATA AS (
select period,manager rep,comp,sum(a) "GT99",sum(b) "90TO99",sum(c) "80TO89",sum(d) "70TO79",sum(e) "LT70",sum(f) "NA" from (
select period
,rep_code
,manager
--,nvl(a,0)+nvl(b,0)+nvl(c,0)+nvl(d,0)+nvl(e,0)+nvl(f,0) cnt
,comp,
nvl(a,0) a,nvl(b,0) b, nvl(c,0) c, nvl(d,0) d,nvl(e,0) e,nvl(f,0) f
from
(select period,rep_code,manager, comp,max(case when bucket='>99' then cnt end) a,
max(case when bucket='90TO99' then cnt end) b,
max(case when bucket='80TO89' then cnt end) c,
max(case when bucket= '70TO79' then cnt end) d,
max(case when bucket='LT70' then cnt end) e,
max(case when bucket='NA' then cnt end) f
from (
select period,rep_code,manager, comp,bucket,
--count(unique rep_code)
count( distinct rep_code) cnt
--cnt
from(
select * from (select
unique period
,MANAGER
,"PayeeID" rep_code
,comp
,cytd cytd_a
,cytp cytd_p,
nvl(case when cytp > 0 then
  case when round((cytd/cytp),3) > .99 then '>99'
       when round((cytd/cytp),3) between .891 and .99 then '90TO99'
       when round((cytd/cytp),3) between .791 and .89 then '80TO89'
       when round((cytd/cytp),3) between .7 and .79 then '70TO79'
       when round((cytd/cytp),3) < .7 then 'LT70'
  end
when  cytp = 0 and cytd > 0 then '>99'
else 'NA'
end,'NA') as bucket
from (
select aaa.period
,aaa."PayeeID"
,aaa."Reports_to" MANAGER
,aaa."Component" comp,
aaa."Current_YTD_Actual" cytd,
aaa."Current_YTD_Plan" cytp
from nbr_var_data aaa
where aaa."Comp_Plan_Name" not in ('MISC_COMP','GM_2017')
AND "Comp_Plan_Name" not in ('MISC_COMP')
AND "Comp_Plan_Name" not LIKE '%GM%'
and aaa.period = (select max(aaa.period) from  Nbr_Var_Data)
))
)
where 1=1
group by period, rep_code, comp, bucket, manager )
group by period, rep_code, comp, manager )) group by period, manager, comp)
SELECT DISTINCT
dc.rep PID
,dc.period
,ee.PAYEE_NAM
,dc.comp
,Dc."GT99"
,Dc."90TO99"
,Dc."80TO89"
,Dc."70TO79"
,Dc."LT70"
,Dc."NA"
,Ee.Parent_Payee_Id REPORT_TO_PAYEE_ID
,Ee.Parent_Payee_Nam REPORT_TO_NAME
FROM (SELECT
--period ,
--empl_id ,
gg.payee_id ,
gg.payee_nam ,
--lvl ,
ff.parent_payee_id ,
ff.PARENT_PAYEE_NAM
--parent_lvl ,
--mnth_disp
FROM (SELECT DISTINCT
dd.period
,dd.PARENT_PAYEE_ID
,ee.PAYEE_NAM PARENT_PAYEE_NAM
from (
SELECT DISTINCT
  PERIOD,
  PARENT_PAYEE_ID
FROM FI_CHANNEL_HIER) dd
left join FI_CHANNEL_HIER ee
on dd.PARENT_PAYEE_ID = ee.PAYEE_ID
WHERE DD.PERIOD = (select max(DD.PERIOD) from  FI_CHANNEL_HIER )) ff
LEFT JOIN FI_CHANNEL_HIER gg
ON ff.PARENT_PAYEE_ID = gg.PARENT_PAYEE_ID) ee,
NEW_REP_DATA dc
WHERE EE.PAYEE_ID = DC.Rep
AND dc.period = (select max(period) from  NEW_REP_DATA)
;

WITH 子句不再有效。 "exceeded call limit on IO usage"

WITH Clause no longer working. "exceeded call limit on IO usage"

oracle

plsql

subquery

with-statement