以前安装sql server的2008,今天到期后,发现再次升级后还是不可以启动Sql Server(以前到期的时候采取升级的办法,再输入一次序
以前安装sql server的2008,今天到期后,发现再次升级后还是不可以启动Sql Server(以前到期的时候采取升级的办法,再输入一次序列号就可以解决)。
在安装的时候,系统提示“在创建窗口句柄前,不能在控件上调用invoke或begininvoke”的错误,googole后,网上很多人说是与office系列的产品有关(卸载后安装还是不行)。
平时安装sql server2008还都是比较顺利的,今天怎么就这么费劲呢,,无奈之下,只能求救于度娘。网上说可能是进程“mscorsvw.exe”造成的,把该进程关闭后,可以启动sql server 2008的安装程序了(谢天谢地啊!)。可是好景不长,在安装到一半的时候,又报出了同样的错误(奔溃了!)。
经查,“mscorsvw.exe”是服务“Microsoft .NET Framework NGEN”的进程,进入服务控制面板(在dos窗口中敲入“services msc”后回车),关闭该服务进程,重新启动sql server 2008的安装程序即可安装完成(微软也太烂了,自家的东西互相冲突啊!)。
“Microsoft .NET Framework NGEN”是服务的显示名称,真正的服务名为“clr_optimization_v2.0.50727_32”,也就是微软自家的公共语言运行时的优化程序,优化过程中估计调用的“.net FrameWork”与sql server安装程序时竞争的资源产生冲突造成的。

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MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

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MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.


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