如果不存在，如何在mysql中插入多行

Question

我只想同時插入多行。 但我想忽略表中已經存在的每一個。 我只是進行查詢，但是它存在語法問題。 有人可以幫助我解決嗎？ 這是我的SQL查詢：

INSERT INTO `targetmediaid` (`pageid`, `targetpageid`, `mediaid`) 
SELECT "4578583556", "5633144318", "1544121716250721765_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1544121605403655131_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1544121513523117304_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1544121293112402936_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1544121119770209275_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1544121021170710600_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1544120871450810242_5633144318"  UNION 
SELECT "4578583556", "5633144318", "1542556083004139499_5633144318"  as t 
WHERE NOT EXISTS
   ( SELECT `pageid`, `targetpageid`, `mediaid` 
       FROM `targetmediaid` 
      WHERE `mediaid` 
         IN  ("1544121716250721765_5633144318" , 
              "1544121605403655131_5633144318" , 
              "1544121513523117304_5633144318" , 
              "1544121293112402936_5633144318" , 
              "1544121119770209275_5633144318" , 
              "1544121021170710600_5633144318" , 
              "1544120871450810242_5633144318" , 
              "1542556083004139499_5633144318" 
             ) 

Answer 1

在創建唯一索引pageid ， targetpageid ， mediaid列和使用INSERT語句忽略。
INSERT IGNORE INTO targetmediaid (pageid, targetpageid, mediaid) VALUES ("4578583556", "5633144318", "1544121716250721765_5633144318"), ("4578583556", "5633144318", "1544121605403655131_5633144318"),("4578583556", "5633144318", "1544121513523117304_5633144318") .....等。