按日期

Question

排序從不同的MySQL表的內容我有3個不同的表：

• 新聞

  • news_id
  • news_content
  • news_pubdate

• 歌曲

  • song_id
  • song_link
  • song_pubdate

• 採訪

  • interview_id
  • interview_artist
  • interview_content
  • interview_pubdate

我試圖建立在我的網站一個時間表，顯示由pubdate的從我的3個表中唯一列表排序的所有內容。有沒有辦法在MySQL中做到這一點？

也許創建一個'一般'的表，將包括所有的ids按我的3個其他表中的日期排序？然後我應該將所有元素與PHP鏈接起來。這是不是太耗電？

Answer 1

試試這個，看看它是否會滿足您的需求：

SELECT 
    `news_id`  AS `id`, 
    `news_content` AS `content`, 
    `news_pubdate` AS `pubdate`, 
    ""    AS `person`, 
    "news"   AS `type` 
FROM `news` 

UNION 
SELECT 
    `song_id`  AS `id`, 
    `song_link` AS `content`, 
    `song_pubdate` AS `pubdate`, 
    ""    AS `person`, 
    "song"   AS `type` 
FROM `song` 

UNION 
SELECT 
    `interview_id`  AS `id`, 
    `interview_content` AS `content`, 
    `interview_pubdate` AS `pubdate`, 
    `interview_artist` AS `person`, 
    "interview"   AS `type` 
FROM `interview` 

ORDER BY `pubdate`;