Originally HTTP has been designed as a stateless, response-request oriented protocol. However, real world applications often need to be able to persis ...
分类：
Web程序 时间：
2016-07-30 16:45:17
阅读次数：
190
Description The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil"). However, Rozdil is dangerous to settle, so ...
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其他好文 时间：
2016-07-30 13:32:36
阅读次数：
147
Introduction In the past, developers have generated a Cron entry for each task they need to schedule. However, this is a headache. Your task schedule ...
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其他好文 时间：
2016-07-20 15:04:02
阅读次数：
272
1、概述
即使业务拆分，有时还是不能避免某张表的数据（行数）过多。
当单表数据过多时，会影响整体的性能，查询将变得更慢，数据的备份恢复也会花费更多时间。
However，数据库一般都提供了一个将单表拆分成多张表的机制，以更容易的管理表和解决性能问题。这种方式（把表的行分为多个部分）划分表数据的方法就是对表的分区。被分区的表是分区表，拆分后的每一部分叫一个分区。
分区是解决大型表问题的有效方法：
改善表的查询性能。
表更容易管理。
导入导出会更好的执行...
分类：
数据库 时间：
2016-07-17 16:56:53
阅读次数：
237
解决方法: However, the proper way to fix this is to use the new UIAlertController API on iOS 8 (i.e. use if ([UIAlertController class]) ... to test for it ...
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移动开发 时间：
2016-07-14 13:09:17
阅读次数：
905
Tasks & executors relation Q1. However I'm a bit confused by the concept of "task". Is a task an running instance of the component(spout or bolt) ? An ...
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其他好文 时间：
2016-07-12 12:13:01
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131
官网地址 http://redis.io/download Windows The Redis project does not officially support Windows. However, the Microsoft Open Tech group develops and maint ...
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其他好文 时间：
2016-07-12 11:57:40
阅读次数：
294
Understanding the Router Our module is coming along nicely. However, we're not really doing all that much yet; to be precise, all we do is display all ...
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其他好文 时间：
2016-07-05 11:47:36
阅读次数：
182
Problem Description
The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and the doggie could feel the ground sinking. He rea...
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其他好文 时间：
2016-07-04 15:40:44
阅读次数：
181
Problem Description The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, an ...
分类：
其他好文 时间：
2016-07-04 01:02:05
阅读次数：
205
