算術溢出錯誤

我收到此錯誤信息算術溢出錯誤

Msg 8115, Level 16, State 2, Line 20 
Arithmetic overflow error converting expression to data type int.

這裏是我的代碼：

-- Set Variabes -- 
DECLARE @name VARCHAR(3) = 'L20' 
DECLARE @cable int = (SELECT 
      cd.id 

     FROM 
      dbo.WTG_ID wd JOIN 
      dbo.power_wtg p ON wd.id = p.wtgid, 
      dbo.data d JOIN 
      dbo.Cable_ID cd ON cd.id = d.cable 

     WHERE 
      wd.name = @name and 
      wd.string = cd.string and 
      wd.position = cd.wtgs 

     GROUP BY 
      cd.id) 
-- Query -- 
select 
case 
     WHEN d.KP < 8321.399 THEN '1) K20' 
     WHEN d.KP < 8336.499 THEN '2) K20 J-Tube' 
     WHEN d.KP < 8356.499 THEN '3) K20 CPS' 
     WHEN d.KP < 9392.977 THEN '4) K20 - L20' 
     WHEN d.KP < 9412.977 THEN '5) L20 CPS' 
     WHEN d.KP < 9428.077 THEN '6) L20 J-Tube' 
    else '7) L20' 
    end as Location, 
case 
     WHEN d.temp < 21 THEN '20' 
     WHEN d.temp < 22 THEN '21' 
     WHEN d.temp < 23 THEN '22' 
     WHEN d.temp < 24 THEN '23' 
     WHEN d.temp < 25 THEN '24' 
     WHEN d.temp < 26 THEN '25' 
     WHEN d.temp < 27 THEN '26' 
     WHEN d.temp < 28 THEN '27' 
     WHEN d.temp < 29 THEN '28' 
     WHEN d.temp < 30 THEN '29' 
     WHEN d.temp < 31 THEN '30' 
     WHEN d.temp < 32 THEN '31' 
    else '32' 
    end as temp, 
count (d.temp) as [frequency every 2 hours], 
count (distinct(datepart(day, d.time))) as [frequency every day], 
count (distinct(datepart(week, d.time))) as [frequency every week], 
min(d.KP) as 'Min KP', 
max(d.KP) as 'Max KP', 
avg(d.KP) as 'Avg KP' 

from 
data d 

where 
d.temp > 20 and 
d.cable = @cable 

group by 
case 
     WHEN d.KP < 8321.399 THEN '1) K20' 
     WHEN d.KP < 8336.499 THEN '2) K20 J-Tube' 
     WHEN d.KP < 8356.499 THEN '3) K20 CPS' 
     WHEN d.KP < 9392.977 THEN '4) K20 - L20' 
     WHEN d.KP < 9412.977 THEN '5) L20 CPS' 
     WHEN d.KP < 9428.077 THEN '6) L20 J-Tube' 
    else '7) L20' 
    end, 
case 
     WHEN d.temp < 21 THEN '20' 
     WHEN d.temp < 22 THEN '21' 
     WHEN d.temp < 23 THEN '22' 
     WHEN d.temp < 24 THEN '23' 
     WHEN d.temp < 25 THEN '24' 
     WHEN d.temp < 26 THEN '25' 
     WHEN d.temp < 27 THEN '26' 
     WHEN d.temp < 28 THEN '27' 
     WHEN d.temp < 29 THEN '28' 
     WHEN d.temp < 30 THEN '29' 
     WHEN d.temp < 31 THEN '30' 
     WHEN d.temp < 32 THEN '31' 
    else '32' 
    end 

    ORDER BY 
     1 asc, 2 asc 

;

來源

2016-07-26 Ayrton Bourn

「d.KP」列中存儲了什麼？它是什麼數據類型？ – gofr1

嘗試

DECLARE @cable bigint = (SELECT 
     cd.id 

    FROM 
     dbo.WTG_ID wd JOIN ...etc

我懷疑你的選擇cd.id超過最大的整數值 - 它是一個序列號，可能是字符串嗎？

來源

2016-07-26 12:30:08 Cato

算術溢出錯誤

回答

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