[英]How to mix SQL data with OR condition
我有一個SQL查詢在1月1日至12月31日之間返回2 post_type:
$url = current date (2017 for example)
SELECT *
FROM `posts`
WHERE `post_date`
BETWEEN '".$url."-01-01'
AND '".$url."-12-31'
AND post_status = 'publish'
AND post_type = 'car'
OR `post_date`
BETWEEN '".$url."-01-01'
AND '".$url."-12-31'
AND post_status = 'publish'
AND post_type = 'motorbike'
ORDER BY 'post-date'"
我的查詢有效,但結果首先是reutnr car
,其次是motorbike
。
我想post_date
而不是按post_type
混合數據。
任何想法 ?
編輯:
當前結果:
Car | January
Car | February
Car | April
[...]
Car | July
Car | August
Motorbike | January
Motorbike | March
Motorbike | May
Motorbike | June
[...]
我想要的是 :
Car | January
Motorbike | January
Car | February
Motorbike | March
Car | April
Motorbike | May
Motorbike | June
Motorbike | July
Car | August
[...]
帶有“ month”但格式日期為2017-12-31的示例
演示: http : //rextester.com/MBRS91171
使用IN vs或or簡化查詢
SELECT *
FROM posts
WHERE `post_date`
BETWEEN '2017-01-01'
AND '2017-12-31'
AND post_status = 'publish'
AND post_type in ('car', 'motorbike')
ORDER BY post_date desc;
或者只是確保order by語法正確。
SELECT *
FROM `posts`
WHERE `post_date`
BETWEEN '".$url."-01-01'
AND '".$url."-12-31'
AND post_status = 'publish'
AND post_type = 'car'
OR `post_date`
BETWEEN '".$url."-01-01'
AND '".$url."-12-31'
AND post_status = 'publish'
AND post_type = 'motorbike'
ORDER BY `post_date`
確保post_date與post_date
和'post-date'順序正確
目前尚不清楚您要做什么。 但是,如果要先按car
的郵政類型進行訂購,則可以按如下方式按順序使用CASE
表達式:
...
ORDER BY CASE WHEN post_type = 'car' THEN 0 ELSE 1 END, 'post-date'
這個怎么樣
ORDER BY post_date asc,post_type asc
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