sql - Firebird sql - リレーション/プロシージャ/ビューのコンテキストが多すぎます。最大許容値は 255 です - エラー

Question

「リレーション/プロシージャ/ビューのコンテキストが多すぎます。最大許容数は 255 です」 - エラーを生成する大きな firebird sql クエリがあります。

私はそれを見ましたが、それを減らす方法がわからないので、上記のエラーは発生しなくなりました。

クエリは、その年の週ごとのカウントを返します。何もない場合、その週の 0 が返されます。1 年の 52/53 週すべてが正しいカウントまたは 0 で含まれている必要があります。

使用するリレーション/プロシージャ/ビューが 255 未満の場合、クエリは正常に機能しますが、52/53 週間すべてで同じ結果が得られるようにクエリを減らす方法を見つける必要があります。

Select "Week"||''||"Year" as "Week", "Courses"
From (
select ' 02 Jan ' as "Week", (select count(Distinct crs.ID)from comp_Invoice IV
inner join Course CRS on IV.COD_COURSE=CRS.id
where extract(week from BOOKING_DATE) = 1
and BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS'
and crs.name not like '%Cancel%'
and crs.name not like 'CERT'
and crs.name not like '%cancel%'
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%'
and crs.version Like :CoursesTitle ) as "Courses",
extract(year from IV.BOOKING_DATE) as "Year",
01  as "Sorter"
from comp_Invoice IV
inner join Course CRS on IV.COD_COURSE=CRS.id
where
BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS'
and crs.name not like '%Cancel%'
and crs.name not like 'CERT'
and crs.name not like '%cancel%'
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%'
and crs.version Like :CoursesTitle
group by 3

UNION

select ' 09 Jan ' as "Week", (select count(Distinct crs.ID)from comp_Invoice IV
inner join Course CRS on IV.COD_COURSE=CRS.id
where extract(week from BOOKING_DATE) = 2
and BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS'
and crs.name not like '%Cancel%'
and crs.name not like 'CERT'
and crs.name not like '%cancel%'
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%'
and crs.version Like :CoursesTitle ) as "Courses",
extract(year from IV.BOOKING_DATE) as "Year",
02 as "Sorter"
from comp_Invoice IV
inner join Course CRS on IV.COD_COURSE=CRS.id
where
BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS'
and crs.name not like '%Cancel%'
and crs.name not like 'CERT'
and crs.name not like '%cancel%'
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%'
and crs.version Like :CoursesTitle
group by 3

UNION

select ' 16 Jan ' as "Week", (select count(Distinct crs.ID)from comp_Invoice IV
inner join Course CRS on IV.COD_COURSE=CRS.id
where extract(week from BOOKING_DATE) = 3
and BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS'
and crs.name not like '%Cancel%'
and crs.name not like 'CERT'
and crs.name not like '%cancel%'
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%'
and crs.version Like :CoursesTitle ) as "Courses",
extract(year from IV.BOOKING_DATE) as "Year",
03 as "Sorter"
from comp_Invoice IV 
inner join Course CRS on IV.COD_COURSE=CRS.id
where
BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS'
and crs.name not like '%Cancel%'
and crs.name not like 'CERT'
and crs.name not like '%cancel%'
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%'
and crs.version Like :CoursesTitle
group by 3
--** Same code and union is repeated 52 times one per week of the year**--
)  
Group by 1,2,3,4
Order By 3,4 ASC

クエリを減らして同じ結果を得る方法について誰かが明るいアイデアを持っている場合は、投稿してください。よろしくお願いします。

score 1 · Accepted Answer

ヒントをありがとう。ここで解決したのは新しいクエリです。

`Select "Week", "Year", SUM("Courses") as "Courses", "Sorter"
FROM (
select 
case extract(week from BOOKING_DATE) 
when 1 then 'Week # 1 (2 Jan) ' 
when 2 then 'Week # 2 (09 Jan) ' 
when 3 then 'Week # 3 (16 Jan) ' 
when 4 then 'Week # 4 (23 Jan)'
when 5 then 'Week # 5 (30 Jan)' 
when 6 then 'Week # 6 (06 Feb)' 
when 7 then 'Week # 7 (13 Feb)' 
when 8 then 'Week # 8 (20 Feb)' 
when 9 then 'Week # 9 (27 Feb)' 
when 10 then 'Week # 10 (06 March)' 
when 11 then 'Week # 11 (13 March)' 
when 12 then 'Week # 12 (20 March)'
when 13 then 'Week # 13 (27 March)'
when 14 then 'Week # 14 (03 April)'
when 15 then 'Week # 15 (10 April)'
when 16 then 'Week # 16 (17 April)'
when 17 then 'Week # 17 (24 April)'
when 18 then 'Week # 18 (01 May)'
when 19 then 'Week # 19 (08 May)'
when 20 then 'Week # 20 (15 May)'
when 21 then 'Week # 21 (22 May)'
when 22 then 'Week # 22 (29 May)'
when 23 then 'Week # 23 (05 Jun)'
when 24 then 'Week # 24 (12 Jun)'
when 25 then 'Week # 25 (19 Jun)'
when 26 then 'Week # 26 (26 Jun)'
when 27 then 'Week # 27 (03 July)'
when 28 then 'Week # 28 (10 July)'
when 29 then 'Week # 29 (17 July)'
when 30 then 'Week # 30 (24 July)'
when 31 then 'Week # 31 (31 July)'
when 32 then 'Week # 32 (07 Aug)'
when 33 then 'Week # 33 (14 Aug)'
when 34 then 'Week # 34 (21 Aug)'
when 35 then 'Week # 35 (28 Aug)'
when 36 then 'Week # 36 (04 Sep)'
when 37 then 'Week # 37 (11 Sep)'
when 38 then 'Week # 38 (18 Sep)'
when 39 then 'Week # 39 (25 Sep)'
when 40 then 'Week # 40 (02 Oct)'
when 41 then 'Week # 41 (09 Oct)'
when 42 then 'Week # 42 (16 Oct)'
when 43 then 'Week # 43 (23 Oct)'
when 44 then 'Week # 44 (30 Oct)'
when 45 then 'Week # 45 (06 Nov)'
when 46 then 'Week # 46 (13 Nov)'
when 47 then 'Week # 47 (20 Nov)'
when 48 then 'Week # 48 (27 Nov)'
when 49 then 'Week # 49 (04 Dec)'
when 50 then 'Week # 50 (11 Dec)'
when 51 then 'Week # 51 (18 Dec)'
when 52 then 'Week # 52 (25 Dec)'

end  as "Week" , 
extract(year from BOOKING_DATE) as "Year" ,
coalesce(count(Distinct crs.ID),0) as "Courses", extract(Week from BOOKING_DATE) as     "Sorter"

from comp_Invoice IV
inner join Course CRS on IV.COD_COURSE=CRS.id

where 
    BOOKING_DATE between :StartDate and :EndDate
and crs.c_type = 'OS' 
and crs.name not like '%Cancel%' 
and crs.name not like 'CERT'  
and crs.name not like '%cancel%' 
and crs.name not like '%CANCELl%'
and crs.name not like '%CANCELL%'
and crs.version not like 'CONSTRUC%' 
and crs.version Like :CourseTitle
Group by 1,2,4

UNION 

select 
case extract(week from BOOKING_DATE) 
when 1 then 'Week # 1 (2 Jan) ' 
when 2 then 'Week # 2 (09 Jan) ' 
when 3 then 'Week # 3 (16 Jan) ' 
when 4 then 'Week # 4 (23 Jan)' 
when 5 then 'Week # 5 (30 Jan)' 
when 6 then 'Week # 6 (06 Feb)' 
when 7 then 'Week # 7 (13 Feb)' 
when 8 then 'Week # 8 (20 Feb)' 
when 9 then 'Week # 9 (27 Feb)' 
when 10 then 'Week # 10 (06 March)' 
when 11 then 'Week # 11 (13 March)' 
when 12 then 'Week # 12 (20 March)'
when 13 then 'Week # 13 (27 March)'
when 14 then 'Week # 14 (03 April)'
when 15 then 'Week # 15 (10 April)'
when 16 then 'Week # 16 (17 April)'
when 17 then 'Week # 17 (24 April)'
when 18 then 'Week # 18 (01 May)'
when 19 then 'Week # 19 (08 May)'
when 20 then 'Week # 20 (15 May)'
when 21 then 'Week # 21 (22 May)'
when 22 then 'Week # 22 (29 May)'
when 23 then 'Week # 23 (05 Jun)'
when 24 then 'Week # 24 (12 Jun)'
when 25 then 'Week # 25 (19 Jun)'
when 26 then 'Week # 26 (26 Jun)'
when 27 then 'Week # 27 (03 July)'
when 28 then 'Week # 28 (10 July)'
when 29 then 'Week # 29 (17 July)'
when 30 then 'Week # 30 (24 July)'
when 31 then 'Week # 31 (31 July)'
when 32 then 'Week # 32 (07 Aug)'
when 33 then 'Week # 33 (14 Aug)'
when 34 then 'Week # 34 (21 Aug)'
when 35 then 'Week # 35 (28 Aug)'
when 36 then 'Week # 36 (04 Sep)'
when 37 then 'Week # 37 (11 Sep)'
when 38 then 'Week # 38 (18 Sep)'
when 39 then 'Week # 39 (25 Sep)'
when 40 then 'Week # 40 (02 Oct)'
when 41 then 'Week # 41 (09 Oct)'
when 42 then 'Week # 42 (16 Oct)'
when 43 then 'Week # 43 (23 Oct)'
when 44 then 'Week # 44 (30 Oct)'
when 45 then 'Week # 45 (06 Nov)'
when 46 then 'Week # 46 (13 Nov)'
when 47 then 'Week # 47 (20 Nov)'
when 48 then 'Week # 48 (27 Nov)'
when 49 then 'Week # 49 (04 Dec)'
when 50 then 'Week # 50 (11 Dec)'
when 51 then 'Week # 51 (18 Dec)'
when 52 then 'Week # 52 (25 Dec)'
end as "Week",
extract(year from BOOKING_DATE) as "Year" ,
0 as "Courses",
extract(Week from BOOKING_DATE) as "Sorter"
from comp_Invoice 
where 
BOOKING_DATE between :StartDate and :EndDate 

)
GROUP BY 1,2,4
Order by 2,4 ASC'

score 0 · Accepted Answer

次のように、値が 0 の共用体を使用できます。

select
 'Week # ' || extract(week from GTT.DT) ||
       ' (' || extract(day from GTT.DT) ||
       ' ' || case extract(month from GTT.DT)
                when 1 then 'Jan'
                when 2 then 'Feb'
                when 3 then 'Mar'
                when 4 then 'Apr'
                when 5 then 'May'
                when 6 then 'Jun'
                when 7 then 'Jul'
                when 8 then 'Aug'
                when 9 then 'Sep'
                when 10 then 'Okt'
                when 11 then 'Nov'
                when 12 then 'Dec'
              end || ')' as "Week",
  extract(year from GTT.DT) as "Year", 0 as "Courses", 
  extract(week from GTT.DT) as "Sorter"
from
  (
   with recursive DATES as
   (select
      cast(:STARTDATE as date) as DT
    from
      RDB$DATABASE

    union all

    select
      dateadd(day, 1, DT)
    from
      DATES
    where
      DT < cast(:ENDDATE as date)
   )
select
  DT
from
  DATES
) GTT

sql - Firebird sql - リレーション/プロシージャ/ビューのコンテキストが多すぎます。最大許容値は 255 です - エラー

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