Microsoft SQL Server, 错误：4064的解决方法

最新推荐文章于 2020-08-03 13:38:06 发布

原创最新推荐文章于 2020-08-03 13:38:06 发布 · 2.1w 阅读

3 ·

CC 4.0 BY-SA版权

文章标签：

#sql server #microsoft #database #login #user #server

数据库理论专栏收录该内容

9 篇文章

订阅专栏

本文介绍了一种解决SQL Server中常见的登录失败问题的方法，特别是当用户的默认数据库被删除时出现的错误4064。通过更改连接数据库及运行特定的SQL语句来解决此问题。

SQL SERVER – Fix : Error: 4064 – Cannot open user default database. Login failed. Login failed for user

November 4, 2008 by pinaldave

I have received following question nearly 10 times in last week though emails. Many users have received following error while connecting to the database. This error happens when database is dropped for which is default for some of the database user. When user try to login and their default database is dropped following error shows up.

Cannot open user default database. Login failed.
Login failed for user ‘UserName’. (Microsoft SQL Server, Error: 4064)

The fix for this problem is very simple.

Fix/Workaround/Solution:

First click on Option>> Button of “Connect to Server” Prompt.

Now change the connect to database to any existing database on your server like master or msdb.

Now click on connect and it will successfully log you in. Once you login in the system run following statement for your username and it should fix your problem. Make sure to replace [test] with your username and master with yourdatabase name.

ALTER LOGIN [test] WITH DEFAULT_DATABASE = master
GO