MySQL5.5 delete表串連文法改變

來源:互聯網
上載者:User

在MySQL5.5裡,規範了sql語句表串連的寫法。

 
  1. delete user a,user2 b from user a join user2 b on a.id=b.id; 

這樣寫在MySQL5.1裡,可以正常執行,但在MySQL5.5裡就報錯,下面是一個測試:

650) this.width=650;" border="0" src="http://www.bkjia.com/uploads/allimg/131229/19222K112-0.png" alt="" /> 650) this.width=650;" border="0" src="http://www.bkjia.com/uploads/allimg/131229/19222GM6-1.png" alt="" />

可以看到,執行時報錯。那麼規範後的寫法是: 

 
  1. delete a,b from user a join user2 b on a.id=b.id; 
650) this.width=650;" border="0" src="http://www.bkjia.com/uploads/allimg/131229/19222JT4-2.png" alt="" />

參考手冊:

650) this.width=650;" border="0" alt="" src="http://www.bkjia.com/uploads/allimg/131229/19222M414-3.jpg" />

 

本文出自 “賀春暘的技術專欄” 部落格,請務必保留此出處http://hcymysql.blog.51cto.com/5223301/1009331

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