甲骨文 - ORA-01848錯誤

我試圖執行以下查詢甲骨文 - ORA-01848錯誤

SELECT w.grid_no, SUM(A) 
FROM TABLE_1 w 
WHERE w.DAY between to_date((select jsow from TABLE_2 t where t.grid_no = w.grid_no and t.crop_no=90) || '-2016','DDD-YYYY') - 0 
     and to_date((select jsow from TABLE_2 t where t.grid_no = w.grid_no and t.crop_no=90) || '-2016','DDD-YYYY') + 0 + 10 - 1 
     and A > 8 
group BY w.GRID_NO

，但我有錯誤

01848. 00000 - "day of year must be between 1 and 365 (366 for leap year)"

相反，如果我添加上grid_no查詢工作的過濾器;例如

SELECT w.grid_no, SUM(A) 
FROM TABLE_1 w 
WHERE w.grid_no=1000 -- <---- the added filter 
     and w.DAY between to_date((select jsow from TABLE_2 t where t.grid_no = w.grid_no and t.crop_no=90) || '-2016','DDD-YYYY') - 0 
     and to_date((select jsow from TABLE_2 t where t.grid_no = w.grid_no and t.crop_no=90) || '-2016','DDD-YYYY') + 0 + 10 - 1 
    and A > 8

涉及的兩個表是：

TABLE_1 [grid_no, day, A] 
TABLE_2 [grid_no, crop_no, jsow]

JSOW是儒略日：對於給定的一對（grid_no，crop_no）存儲在表2的最大值可以去從1到366

我的目標是有這樣的事情：對於TABLE_1中的每個grid_no，我必須在TABLE_2中獲取相應的jsow值，然後在通過jsow指定的範圍中求和A值。

來源

2017-04-06 Fab

錯誤提示你實際上有'jsow'值不在1和366之間？ –

@AlexPoole我檢查了：MIN（jsow）= 1，MAX（jsow）= 366。 grid_id = 1000（請參閱第二個查詢）擁有jsow = 366 – Fab

網格ID 1000顯然具有良好的jsow值，而其他網格則沒有。你是說'select min（jsow），max（jsow）from table_2'在* all * grid ID中顯示1和366，或者只顯示1000？如果它適用於所有ID，那麼是否帶有'crop_no = 90'過濾器？ –

如果你有空值table_2，或有在table_1其在table_2（作物90）不匹配的行grid_id，子查詢要麼返回null或沒有數據。無論哪種方式，您最終都會得到一個無效的數據字符串。

隨着一些虛擬的數據：

create table table_1 (grid_no, day, a) as 
    select 1000, date '2016-01-01', 42 from dual 
    union all select 1001, date '2016-01-02', 42 from dual 
    union all select 1002, date '2016-01-03', 42 from dual 
    union all select 1003, date '2016-01-04', 42 from dual; 

create table table_2(grid_no, crop_no, jsow) as 
    select 1000, 90, 1 from dual 
    union all select 1001, 91, 367 from dual 
    union all select 1002, 90, null from dual; 

SELECT w.grid_no, 
    (select jsow from TABLE_2 t where t.grid_no = w.grid_no and t.crop_no=90) as jsow, 
    (select jsow from TABLE_2 t where t.grid_no = w.grid_no and t.crop_no=90) || '-2016' as date_string 
FROM TABLE_1 w; 

    GRID_NO  JSOW DATE_STRING         
---------- ---------- --------------------------------------------- 
     1000   1 1-2016          
     1001   -2016           
     1002   -2016           
     1003   -2016

如果您嘗試那些'-2016字符串中的一個轉換爲日期，你會得到同樣的錯誤：

select to_date('-2016', 'DDD-YYYY') from dual; 

ORA-01848: day of year must be between 1 and 365 (366 for leap year)

你可以重寫查詢一個連接而不是兩個子查詢，這使得您可以輕鬆過濾所需的行：

SELECT w.grid_no, SUM(w.A) 
FROM TABLE_1 w 
JOIN TABLE_2 t ON t.grid_no = w.grid_no 
AND w.DAY between to_date(t.jsow || '-2016','DDD-YYYY') - 0 
    AND to_date(t.jsow || '-2016','DDD-YYYY') + 9 
WHERE t.crop_no=90 
AND t.jsow between 1 and 366 
AND w.A > 8 
GROUP BY w.GRID_NO;

內部連接意味着任何table_1行沒有table_2行被忽略; jsow上的過濾器在萬一匹配項爲空的情況下。你可能更喜歡成爲一個外連接，這取決於你真的在做什麼。

來源

2017-04-06 16:15:17

甲骨文 - ORA-01848錯誤

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