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More on duplicate key related news:
Advantages of Duplicate Keys and High Security Locks in Florida sumterlocksmith.com 2 Jun 2012 | 07:08 pm
Locksmith in FL will give you a great service for Orlando Locksmith installation, duplicate keys, mortise lock, high security locks that assist in protecting your home as well as office property. You ...
Поведение INSERT… ON DUPLICATE KEY UPDATE в крайней ситуации myforce.ru 30 Oct 2012 | 12:00 am
Несколько недель назад, я работал над проблемой клиента, который столкнулся с падением производительности БД и даже ее отказами, которые происходили приблизительно каждые 4 недели. Ничего особенного в...
TIL: Easy UPSERTS in MySQL wynnnetherland.com 11 Jan 2013 | 05:00 am
I've long loved upserts in MongoDB, but I suppose my desire to keep my SQL vanilla for Rails caused me to overlook easy upserts in MySQL using ON DUPLICATE KEY UPDATE: If the INSERT would cause a dup...
JSON Array Single MySQL Insert and Update foscode.com 18 Dec 2012 | 07:47 am
This is another quick one. I wanted to insert a JSON array into MySQL with a single insert and, on duplicate key update. This is how you get it done: Say you have a JSON array like this: [{"num":"222...
Advantages of Duplicate Keys and High Security Locks in Florida sumterlocksmith.com 2 Jun 2012 | 04:08 pm
Locksmith in FL will give you a great service for Orlando Locksmith installation, duplicate keys, mortise lock, high security locks that assist in protecting your home as well as office property. You ...
mysql处理存在则更新，不存在则插入（多列唯一索引） itindex.net 11 Jul 2013 | 06:28 am
mysql处理某个唯一索引时存在则更新，不存在则插入的情况应该是很常见的，网上也有很多类似的文章，我今天就讲讲当这个唯一的索引是多列唯一索引时可能会遇到的问题和方法。 方法一： 使用 INSERT INTO ON ... DUPLICATE KEY UPDATE ... ： 表的创建如下： 其中该表中var1、var2和var3完全相同的记录只能有一条，所以建了一个多列唯一索引index_...
Duplicating Key from Digital copies negosyoideas.com 29 Jul 2013 | 07:15 am
A new startup called KeyMe has developed a kiosk that enables anyone to cut a new copy of their house key from a digital file stored in the cloud. Located in several 7-Eleven stores around New York C...
Fixing duplicate primary key constraint issue in Postgres kdelchev.com 12 Aug 2013 | 03:50 pm
Having error message “PG::Error: ERROR: duplicate key value violates unique constraint “table_name_pkey” DETAIL: Key (id)=(60) already exists.” logically means the primary key in the query you try to ...
MySQL中实用sql语句 phpno.com 23 Aug 2013 | 06:43 am
1、如果数据库存在则更新 如果不存在则插入<这个插入的数据中必须含有唯一索引字段> insert into …. on duplicate key update eg. insert into t_test set ikey=1,value=’a',value2=1 on duplicate key update value2=value2+1; 2、插入数据库 存在的话先删除后插入 不存在...
Remove the shortcut arrow from the desktop untitled.page4.me 5 Nov 2011 | 02:28 pm
How to remove the shortcut arrow from the desktop ? Open Regedit and navigate to the following key:HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ Shell IconsBackup.....
