数据存储优化

Question

我有一个表格，其中可以通过单击添加/删除按钮来动态添加/删除新行。

当我尝试将新添加/删除的行保存回数据库时，我的问题就开始了。我设法使用jQuery的Ajax来保存数据，所以我没有使用post var，而是“收集”每个输入的所有数据。我设法将所有这些数据，并将它们发送到我的store.php存储它们。

我的问题是，我怎么能救我的还真没有几个查询的变化，我的意思是，这是什么store.php被发送到我的MySQL服务器的输出：

UPDATE transport SET transporttype = "3" WHERE id = 1 
UPDATE transport SET transporttype = "2" WHERE id = 6 
UPDATE transport SET transporttype = "1" WHERE id = 7 
UPDATE transport SET transportmandataire = "1" WHERE id = 1 
UPDATE transport SET transportmandataire = "3" WHERE id = 6 
UPDATE transport SET transportmandataire = "3" WHERE id = 7 
UPDATE transport SET transportexpediteur = "1" WHERE id = 1 
UPDATE transport SET transportexpediteur = "3" WHERE id = 6 
UPDATE transport SET transportexpediteur = "3" WHERE id = 7 
UPDATE transport SET transportdestinataire = "1" WHERE id = 1 
UPDATE transport SET transportdestinataire = "2" WHERE id = 6 
UPDATE transport SET transportdestinataire = "4" WHERE id = 7 
UPDATE transport SET transporttransporteur = "5" WHERE id = 1 
UPDATE transport SET transporttransporteur = "4" WHERE id = 6 
UPDATE transport SET transporttransporteur = "3" WHERE id = 7 
UPDATE transport SET transportbondetransportnumerodesuivi = "1563123" WHERE id = 1 
UPDATE transport SET transportbondetransportnumerodesuivi = "23544" WHERE id = 6 
UPDATE transport SET transportbondetransportnumerodesuivi = "23544" WHERE id = 7 
UPDATE transport SET transportlivraisonprevisiondate = "1" WHERE id = 1 
UPDATE transport SET transportlivraisonprevisiondate = "1" WHERE id = 6 
UPDATE transport SET transportlivraisonprevisiondate = "1" WHERE id = 7 
UPDATE transport SET transportlivraisonconstatdate = "test" WHERE id = 1 
UPDATE transport SET transportlivraisonconstatdate = "test" WHERE id = 6 
UPDATE transport SET transportlivraisonconstatdate = "test" WHERE id = 7 
UPDATE transport SET transportlivraisonconstatheure = "test" WHERE id = 1 
UPDATE transport SET transportlivraisonconstatheure = "test" WHERE id = 6 
UPDATE transport SET transportlivraisonconstatheure = "test" WHERE id = 7 
UPDATE transport SET transportlivraisonprevisiondate = "1" WHERE id = 1 
UPDATE transport SET transportlivraisonprevisiondate = "1" WHERE id = 6 
UPDATE transport SET transportlivraisonprevisiondate = "1" WHERE id = 7 
UPDATE transport SET transportlivraisonprevisionheure = "1" WHERE id = 1 
UPDATE transport SET transportlivraisonprevisionheure = "1" WHERE id = 6 
UPDATE transport SET transportlivraisonprevisionheure = "1" WHERE id = 7 
UPDATE transport SET transportetat = "6" WHERE id = 1 
UPDATE transport SET transportetat = "1" WHERE id = 6 
UPDATE transport SET transportetat = "6" WHERE id = 7 
UPDATE transport SET transportimperatif = "09/17/2012" WHERE id = 1 
UPDATE transport SET transportimperatif = "09/18/2012" WHERE id = 6 
UPDATE transport SET transportimperatif = "09/09/2012" WHERE id = 7 
UPDATE transport SET transportbondetransportmoyendetransmission = "2" WHERE id = 1 
UPDATE transport SET transportbondetransportmoyendetransmission = "2" WHERE id = 6 
UPDATE transport SET transportbondetransportmoyendetransmission = "1" WHERE id = 7 
UPDATE transport SET transportbondetransportassurance = "86" WHERE id = 1 
UPDATE transport SET transportbondetransportassurance = "86" WHERE id = 6 
UPDATE transport SET transportbondetransportassurance = "86" WHERE id = 7 
UPDATE transport SET transportobservation = "Aucune observation disponible." WHERE id = 1 
UPDATE transport SET transportobservation = "Aucune observation disponible." WHERE id = 6 
UPDATE transport SET transportobservation = "Aucune observation disponible." WHERE id = 7 
UPDATE transport SET transportreclamationmotif = "3" WHERE id = 1 
UPDATE transport SET transportreclamationmotif = "4" WHERE id = 6 
UPDATE transport SET transportreclamationmotif = "1" WHERE id = 7 
UPDATE transport SET transportreclamationnumerosuivis = "B87GT9" WHERE id = 1 
UPDATE transport SET transportreclamationnumerosuivis = "656786" WHERE id = 6 
UPDATE transport SET transportreclamationnumerosuivis = "C89GF8" WHERE id = 7 
UPDATE transport SET transportreclamationdate = "09/17/2012" WHERE id = 1 
UPDATE transport SET transportreclamationdate = "09/10/2012" WHERE id = 6 
UPDATE transport SET transportreclamationdate = "09/24/2012" WHERE id = 7 
UPDATE transport SET transportreclameetat = "2" WHERE id = 1 
UPDATE transport SET transportreclameetat = "1" WHERE id = 6 
UPDATE transport SET transportreclameetat = "1" WHERE id = 7 
UPDATE transport SET transportreclamationrelancedate = "09/19/2012" WHERE id = 1 
UPDATE transport SET transportreclamationrelancedate = "09/04/2012" WHERE id = 6 
UPDATE transport SET transportreclamationrelancedate = "09/17/2012" WHERE id = 7 
UPDATE transport SET transportreclamationrelancemoyen = "1" WHERE id = 1 
UPDATE transport SET transportreclamationrelancemoyen = "1" WHERE id = 6 
UPDATE transport SET transportreclamationrelancemoyen = "1" WHERE id = 7 
UPDATE transport SET transportindemnisationdate = "09/06/2012" WHERE id = 1 
UPDATE transport SET transportindemnisationdate = "09/19/2012" WHERE id = 6 
UPDATE transport SET transportindemnisationdate = "09/11/2012" WHERE id = 7 
UPDATE transport SET transportindemnisationmontant = "600" WHERE id = 1 
UPDATE transport SET transportindemnisationmontant = "600 €" WHERE id = 6 
UPDATE transport SET transportindemnisationmontant = "600" WHERE id = 7 
UPDATE transport SET transportindemnisationmoyen = "1" WHERE id = 1 
UPDATE transport SET transportindemnisationmoyen = "1" WHERE id = 6 
UPDATE transport SET transportindemnisationmoyen = "1" WHERE id = 7 
UPDATE transport SET transportreclamationobservation = "Non pas d'observation" WHERE id = 1 
UPDATE transport SET transportreclamationobservation = "non plus" WHERE id = 6 
UPDATE transport SET transportreclamationobservation = "encore moins" WHERE id = 7 

没有必要告诉你这个速度太慢了，像5秒钟一样存储所有数据。

Answer 1

你可以利用ON DUPLICATE KEY UPDATE：

INSERT INTO table (id,Col1,Col2) VALUES (1,1,1),(2,2,3),(3,9,3),(4,10,12) 
ON DUPLICATE KEY UPDATE Col1=VALUES(Col1),Col2=VALUES(Col2); 

是做什么的小总结：

如果你指定ON DUPLICATE KEY UPDATE，行插入该 会导致重复值在一个唯一索引或PRIMARY KEY中，一个 执行旧行的UPDATE。

如果您正在从PHP脚本运行这些查询，则应确保您使用的是预准备语句（mysqli或PDO）。如果你使用的是普通的mysql扩展，那么你将使用每个查询往返数据库服务器。但是，通过准备好的语句，可以将类似的查询分组到一个准备好的语句中，并使用不同的数据多次执行它。