#NOW

C# 实现 Snowflake算法 ID生成

http://blog.csdn.net/w200221626/article/details/52064976C#实现Snowflake算法///<summary>///动态生产有规律的IDSnowflake算法是Twitter的工程师为实现递增而不重复的ID实现的///http://blog.csdn....

知识图谱(knowledge graph)新入门

https://www.jiqizhixin.com/articles/2018-06-20-4一个关于知识图谱的简介Aknowledgegraphconsistsofasetofinterconnectedtypedentitiesandtheirattributes. ...

Agile Vs Scrum: Know the Difference

AgilemethodologyisapracticethathelpscontinuousiterationofdevelopmentandtestingintheSDLCprocess.Agilebreakstheproductintosmallerbuilds.Inthismethodology,developm...

Object changed by Unknown

https://documentation.red-gate.com/soc7/troubleshooting/object-changed-by-unknownhttps://documentation.red-gate.com/soc7/configuring/log-changes-to-shared-datab...

phpnow 安装memcached

安装步骤:1.解压memcached.exe到任意目录,这里我解压到(E:WorkingPHPnowmemcached)PHPnow安装目录下面。在CMD命令下运行:"E:WorkingPHPnowmemcachedmemcached.exe-dinstall"安装为系统服务。2.继续CMD下执行:"E:Working...

mysql datetime设置now()无效,直接用程序设置默认值比较好

mysqldatetime设置now()无效的,没有此用法,datetime类型不能设置函数式默认值,只能通过触发器等来搞。想设置默认值,只能使用timestamp类型,然后默认值设置为:CURRENT_TIMESTAMP在MySQL5.0以上版本中也可以使用trigger来实现此功能。createtabletest_...

Unknown column comments0_.id in field list

使用jpa时系统报的错误,找错一个小时。解决办法1、查看sql是否写错。2、如果sql语句正确,则观察表结构。  发现表结构字段有空格 ...
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