在where子句中使用AND和OR

我很難用this where子句獲得正確的結果。我知道這是一個paraenthesis問題。有什麼建議麼？在where子句中使用AND和OR

WHERE a.EVENT_DATE Between &trend_dt And &enddate 
AND a.INDICATOR Not In ('INQUIRY (NOS)','PCC') 
And a.INDICATOR2 Not In ('CAT-NA','INQUIRY (NOS)') 
And d.ACTIVE In ('C','F') 
And d.ARCHIVE_STATUS in ('N','Y') 
Or (d.ARCHIVE_STATUS Is Null)

謝謝！

結果的問題是Indicator 2字段有時是空的，它只是在指示符2字段中有某些內容返回記錄。

這是查詢：

PROC SQL; 
CREATE TABLE COMPLAINT_DATA_0 as 
SELECT 
a.EVENT_DATE, 
a.INDICATOR, 
a.INDICATOR2, 
a.COMMITTEE_ACTION AS REVIEW_TYPE, 
a.LEVEL_OF_EXCEPTION AS METHOD_RECD, 
a.REFER_TO AS PLAN_NTWK, 
b.DESCRIPTION AS SubCategory, 
d.CROSSREF2 AS ConProvID, 
d.LAST_NAME AS Provider, 
a.MED_REC_NO AS MbrID, 
a.CONFIRMED_BY AS IndProvID, 
a.CODE_15 AS Severity, 
MAX(c.INQUIRY_BODY) AS MaxProcStep, 
e.Notes, 
e.Notes2, 
FROM VIPDBA.QA_PEER AS a LEFT JOIN VIPDBA.SYS_LOOKUPS AS b 
ON a.INDICATOR2=b.CODE 
LEFT JOIN VIPDBA.QA_PEER_INQUIRY AS c 
    ON a.LOOKUP_KEY=c.LOOKUP_KEY AND 
a.MED_REC_NO=c.MED_REC_NO 
LEFT JOIN VIPDBA.MASTER_CRED AS d 
    ON a.LOOKUP_KEY=d.LOOKUP_KEY 
LEFT JOIN Complaint_Notes AS e 
    ON a.LOOKUP_KEY=e.LOOKUP_KEY AND 
a.MED_REC_NO=e.MbrID 
WHERE a.EVENT_DATE Between &trend_dt And &enddate 
    AND a.INDICATOR Not In ('INQUIRY (NOS)','PCC') 
    And a.INDICATOR2 Not In ('CAT-NA','INQUIRY (NOS)') 
    And d.ACTIVE In ('C','F') 
    And 
     (d.ARCHIVE_STATUS IN ('N','Y') 
     OR d.ARCHIVE_STATUS is null) 
GROUP a.EVENT_DATE, 
a.INDICATOR, 
a.INDICATOR2, 
b.DESCRIPTION, 
d.CROSSREF2, 
d.LAST_NAME, 
a.MED_REC_NO, 
a.CONFIRMED_BY, 
a.CODE_15, 
e.Notes, 
e.Notes2, 
d.archive_status, 
d.active 
ORDER BY 
a.EVENT_DATE, 
a.INDICATOR2, 
b.DESCRIPTION, 
d.CROSSREF2, 
d.LAST_NAME

; 跑;

來源

2013-10-30 user2937985

一些指導，你做了什麼你期待什麼可能會有所幫助。 –

在此之前你有一些左連接？ –

歡迎來到SO。你期待什麼輸出？也可以粘貼整個查詢 – JNL

我認爲你正在尋找這樣的：

WHERE a.EVENT_DATE Between &trend_dt And &enddate 
AND a.INDICATOR Not In ('INQUIRY (NOS)','PCC') 
And a.INDICATOR2 Not In ('CAT-NA','INQUIRY (NOS)') 
And d.ACTIVE In ('C','F') 
And (d.ARCHIVE_STATUS in ('N','Y') Or d.ARCHIVE_STATUS Is Null)

使用圓括號組邏輯在一起。

來源

2013-10-30 15:47:56

是否需要查看結果：d.ARCHIVE_STATUS（'N'，'Y'）或（d.ARCHIVE_STATUS爲空）如果是，則可能只需將其更改爲如下所示

WHERE a.EVENT_DATE Between &trend_dt And &enddate 
AND a.INDICATOR Not In ('INQUIRY (NOS)','PCC') 
And a.INDICATOR2 Not In ('CAT-NA','INQUIRY (NOS)') 
And d.ACTIVE In ('C','F') 
And (
     d.ARCHIVE_STATUS in ('N','Y') 
     Or 
     d.ARCHIVE_STATUS Is Null 
    )

這樣，它只能在評估d.ARCHIVE_STATUS（ 'N'， 'Y'）相對於d.ARCHIVE_STATUS IS NULL

來源

2013-10-30 15:52:28

甲特技避免檢查換NULL（和從而避免了需要OR ...）將NULL轉換爲可比值，如：

WHERE a.EVENT_DATE BETWEEN &trend_dt AND &enddate 
AND a.INDICATOR NOT IN ('INQUIRY (NOS)','PCC') 
AND a.INDICATOR2 NOT IN ('CAT-NA','INQUIRY (NOS)') 
AND d.ACTIVE IN ('C','F') 
AND COALESCE(d.ARCHIVE_STATUS, 'N') IN ('N','Y') 
    ;

來源

2013-10-30 15:53:17 wildplasser

這仍然會破壞在archive_status列上使用索引的能力，但它比OR條件稍好一些 –

或者你甚至能避免使用OR :)

WHERE a.EVENT_DATE Between &trend_dt And &enddate 
AND a.INDICATOR Not In ('INQUIRY (NOS)','PCC') 
And a.INDICATOR2 Not In ('CAT-NA','INQUIRY (NOS)') 
And d.ACTIVE In ('C','F') 
And COALESCE(d.ARCHIVE_STATUS,'-1') in ('N','Y','-1')

來源

2013-10-30 15:53:38

在where子句中使用AND和OR

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