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”每个输入上的所有数据。我设法获取所有这些数据并将它们发送到存储它们的 store.php。

我的问题是，如何用很少的查询保存我的更改，我的意思是，这是 store.php 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

不用告诉你这太慢了，一个一个存储所有数据大约需要 5 秒。

Answer 1

你可以使用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);

它的作用的小总结：

如果您指定 ON DUPLICATE KEY UPDATE，并插入一行 会导致 UNIQUE 索引或 PRIMARY KEY 中的重复值， 更新旧行。

如果您从 PHP 脚本运行这些查询，则应确保您使用的是准备好的语句（mysqli 或 PDO）。如果您使用的是常规的 mysql 扩展，您将在每次查询时往返于数据库服务器。但是，使用准备好的语句，您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。