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SQL Server连接失败如何解决？楼主安装了两次数据库，都是官网最新的2017 Developer版本的。SSMS安装的是最新的18.3。经历了各种失败之后成功连接数据库。下面总结几种实用的方法给大家，希望大家能很快解决问题，成功连接数据库。第一次安装是选择的自定义安装，然后打开配置管理器里面显示未正确安装，然后连接总是失败，尝试了网上各种办法都没有修复。然后选择重新安装，这次选择的是基本安....

文章 2017-01-24 来自：开发者社区

【转】SQL2008的sa账户被禁用，其他账户无法连接的解决方法

或者你还有其它的sysadmin权限的账号，你可以用此账号登录，重置SA密码。但是在以下情况下，怎么办呢？ 1. SA密码丢失或者SA账号被禁用。 2. 你进行了一些安全操作，把BuiltinAdministrator账号从SQL Server中删除了。然后你不可以用sysadmin权限的账号登录SQL Server了，是不是打算重装SQL Server 2008了呢？其实可以不用重装系统。....

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