#when

SQL利用Case When Then多条件判断

CASEWHEN条件1THEN结果1WHEN条件2THEN结果2WHEN条件3THEN结果3WHEN条件4THEN结果4.........WHEN条件NTHEN结果NELSE结果XENDCase具有两种格式。简单Case函数和Case搜索函数。--简单Case函数CASEsexWHEN'1'THEN'男'WHEN'2'...
代码星球 ·2020-04-06

iOS报错 -pie can only be used when targeting iOS 4.2 or later

近期,使用师兄的project时。突然报错之前没发现这个错误。信息例如以下:ld:-piecanonlybeusedwhentargetingiOS4.2orlaterclang:error:linkercommandfailedwithexitcode1(use-vtoseeinvocation)详细信息: ...
代码星球 ·2020-04-06

activemq 无法消费! consumers are alive when the messages are stuck !

我的微服务中,activemq消费一条消息的时候,出了错,结果导致了那条消息就一直处于pending状态, queue.user.545c2ed5-fee7-482a-bb59-564bbaa593f8_c5cdc461-4e9c-48c5-8684-6a81571114b81100点击去是这样的:Brows...

order by 多条件查询 case when

   场景:在按照条件查询后,排序按照不同的条件排序,以及同一个条件正序和倒序排序。可以考虑使用。   遇到的排序条件:按照直播的状态,根据条件排序。直播的状态包括:直播、置顶、预告、回放、过期预告。排序条件为:多直播按照开始时间倒序排序,置顶按照置顶时间正序...
代码星球 ·2020-04-05

hidesBottombarWhenPushed的副作用

在UITabbarController包含的UINavigationController应用中,如果UINavigationController某一页(某个level)需要隐藏Tabbar,之前的做法是在push那一页之前,将那一页的ViewController中的hidesBottombarWhenPushed参数设...
代码星球 ·2020-04-05

SQL之Case when 语句

--case简单函数(把多列变成单列)selectcasesexwhen'0'then'女'when'1'then'男'else'其他'endfrom[Northwind].[dbo].[Users]--case搜索函数selectcasewhensex='0'then'女'whensex='1'then'男'else...
代码星球 ·2020-04-05

没有连接的AMQP / RabbitMQ通道何时死亡?(when does an AMQP/RabbitMQ channel with no connections die?)

 IhaveasimpleRabbitMQtestprogramrandomlyenqueuingmessages,andanotherreadingthem,allusingSpring-AMQP.Iftheconsumerdies(forexamplekillingaprocesswithouthavin...

mysql case when

下面为您举例说明了三种mysql中casewhen语句的使用方法,供您参考学习,如果您对mysql中casewhen语句使用方面感兴趣的话,不妨一看。1。select name,  case        &n...
代码星球 ·2020-04-02

Git does not apply deleted files when merging an old branch into the master. How can I tell Git to apply deleted files?

TheonlywayIcanfathomthispossiblesituationisifyoucreatedtwodifferentfiles,eachwiththesamefilename,inindependentbranches. 我遇到的情况的是Branch5和Branch6基于同一个commit出...

This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request.

2020-03-1611:04:35,168ERROR[13]:System.InvalidOperationException:Thisrequesthasbeenblockedbecausesensitiveinformationcouldbedisclosedtothirdpartywebsiteswhenthi...
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