SQL Multiple OR BETWEENS

Question

我在Postgres上工作，下面的查詢似乎永遠不會執行，但它只是最終的OR導致問題，它運行良好，如果我註釋掉它。這僅僅是一種低效的寫作方式嗎？如果是這樣，我想不出一個替代方案。

SELECT a.subject_id, a.hadm_id, a.admittime, d.icd9_code, l.short_title, d.seq_num 
FROM mimiciii.admissions a 
INNER JOIN mimiciii.diagnoses_icd d 
ON a.subject_id = d.subject_id 
AND a.hadm_id = d.hadm_id 
INNER JOIN mimiciii.d_icd_diagnoses l 
ON d.icd9_code = l.icd9_code 
WHERE a.subject_id IN 
    (SELECT DISTINCT d.subject_id 
    FROM mimiciii.diagnoses_icd d 
    WHERE d.icd9_code BETWEEN '390%' and '459%') 
    AND d.icd9_code NOT IN 
    (SELECT d.icd9_code 
     FROM mimiciii.diagnoses_icd d 
     WHERE d.icd9_code BETWEEN 'V01%' AND 'V91%' 
     OR d.icd9_code BETWEEN 'E000%' AND 'E999%' 
     OR d.icd9_code BETWEEN '630%' AND '679%' 
     OR d.icd9_code BETWEEN '760%' AND '999%' 
     ) 
ORDER BY subject_id, admittime 

Answer 1

爲什麼需要子查詢？

不會返回你想要的東西嗎？

SELECT a.subject_id, a.hadm_id, a.admittime, d.icd9_code, l.short_title,  d.seq_num 
FROM mimiciii.admissions a 
INNER JOIN mimiciii.diagnoses_icd d 
ON a.subject_id = d.subject_id 
AND a.hadm_id = d.hadm_id 
INNER JOIN mimiciii.d_icd_diagnoses l 
ON d.icd9_code = l.icd9_code 

WHERE d.icd9_code BETWEEN '390%' and '459%' 
and not (d.icd9_code BETWEEN 'V01%' AND 'V91%') 
and not (d.icd9_code BETWEEN 'E000%' AND 'E999%') 
and not (d.icd9_code BETWEEN '630%' AND '679%') 
and not (d.icd9_code BETWEEN '760%' AND '999%')  
ORDER BY subject_id, admittime 

還是我誤會了某處？

Answer 2

也許一個原因，它從來沒有執行完畢，因爲BETWEEN s濾波所有行了。您不能使用通配符BETWEEN。

整個子查詢看起來沒有必要。你可以刪除它。試試這個where條款：

WHERE a.subject_id IN (SELECT d.subject_id 
         FROM mimiciii.diagnoses_icd d 
         WHERE d.icd9_code >= '390' and 
          d.icd9_code < '460' 
        ) 

如果代碼匹配這一點，那麼它不符合你的其他條件。

我懷疑查詢還有其他問題，但這個問題很明顯。

Answer 3

SELECT a.subject_id, a.hadm_id, a.admittime, d.icd9_code, l.short_title, d.seq_num 
FROM mimiciii.admissions a 
INNER JOIN mimiciii.diagnoses_icd d 
ON a.subject_id = d.subject_id 
AND a.hadm_id = d.hadm_id 
INNER JOIN mimiciii.d_icd_diagnoses l 
ON d.icd9_code = l.icd9_code 
WHERE a.subject_id IN 
    (SELECT DISTINCT d.subject_id 
    FROM mimiciii.diagnoses_icd d 
    WHERE d.icd9_code BETWEEN '390%' and '459%') 
    AND d.icd9_code NOT IN 
    (SELECT d.icd9_code 
     FROM mimiciii.diagnoses_icd d 
     WHERE (d.icd9_code BETWEEN 'V01%' AND 'V91%') 
     OR (d.icd9_code BETWEEN 'E000%' AND 'E999%') 
     OR (d.icd9_code BETWEEN '630%' AND '679%') 
     OR (d.icd9_code BETWEEN '760%' AND '999%') 
     ) 
ORDER BY subject_id, admittime 

你可以嘗試（沒有測試過）使用括號命令在這種情況下，子查詢，會先評估括號然後運行或語句來收集數據反饋到外部查詢。