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airband.net – Coming Soon

Account Executive – Outside Sales 25 May 2013 | 05:20 am

Company Airband Communications is the largest fixed wireless provider serving businesses in the United States. We deliver a comprehensive portfolio of high-bandwidth Internet access, point-to-point pr...

UNSi Completes Acquisition of Airband Communications 15 May 2013 | 06:50 pm

Acquisition Strengthens National MPLS Network, Adds Fixed Wireless & Voice Services May 15, 2013, Pittsburgh, PA: United Network Services, Inc. (UNSi), a provider of data network and carrier services,...

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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...

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_...

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...

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