[英]Mysql query doesn't follow condition
因此,我有以下mysql查詢,該查詢有效,但方法不正確:
SELECT * FROM (`CriteriaItems`) INNER JOIN `Address` ON `Address`.`address_id` = `CriteriaItems`.`address_id` WHERE `criteria_id` = '2' AND `status` = 'published' AND `mls_id` LIKE '%123%' OR `Address`.`address` LIKE '%123%' LIMIT 10
問題是我看到它返回的結果也具有“ status” =“ deleted”,這就是因為“ Address” .
如果我刪除了此地址,則LIKE '%123%'
,但是我需要它。
因此它也想在地址表中進行搜索,但僅基於CriteriaItems`.`address_id
這是因為AND
運算符的優先級比OR
更高,現在您的查詢像這樣工作。
WHERE `criteria_id` = '2'
AND (`status` = 'published' AND `mls_id` LIKE '%123%')
OR `Address`.`address` LIKE '%123%' LIMIT 10
可以在這里找到更多信息
因此,您需要使用括號正確地應用條件
WHERE `criteria_id` = '2'
AND `status` = 'published' AND
(`mls_id` LIKE '%123%' OR `Address`.`address` LIKE '%123%')
LIMIT 10
您需要使用方括號將OR
換行:
SELECT *
FROM `CriteriaItems`
JOIN `Address`
ON `Address`.`address_id` = `CriteriaItems`.`address_id`
WHERE `criteria_id` = '2'
AND `status` = 'published'
AND (`mls_id` LIKE '%123%' OR `Address`.`address` LIKE '%123%')
LIMIT 10;
還考慮使用ORDER BY
獲得穩定的結果。
簡單的布爾邏輯:
p1 AND p2 AND p3 OR p4 is true <=> (p1 AND p2 AND p3) is true OR p4 is true
我想你要:
p1 AND p2 AND (p3 OR p4)
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