permissions - SQL Server Error while creating User - Database Administrators Stack Exchange
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Microsoft SQL Server - Lesson 28: Uniting, Copying, and/or Merging Records
![重庆思庄每日技术分享]-新增用户报：用户不是有效登录或没有权限(Microsoft SQL Server, Error: 15007) - 知乎](https://picx.zhimg.com/v2-b206e9b93e4c8b47a1f56b09bd55d8ad_720w.jpg?source=172ae18b "重庆思庄每日技术分享]-新增用户报：用户不是有效登录或没有权限(Microsoft SQL Server, Error: 15007) - 知乎")
重庆思庄每日技术分享]-新增用户报：用户不是有效登录或没有权限(Microsoft SQL Server, Error: 15007) - 知乎
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Microsoft SQL Server - Lesson 28: Uniting, Copying, and/or Merging Records
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实验六】【为用户设置权限】_创建用户错误15007-CSDN博客
How to (Somewhat) Increase SQL Server Security – SQLServerCentral
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Working with SQL Server Logins
Working with SQL Server Logins - CodeProject
