阅读教程时,应该像下面的代码示例一样简单,除非我收到一条错误消息.在网络上搜索具有相同错误的人,我最终看到非常复杂的代码具有相同的错误.有人可以给我一个线索.

DECLARE @Username nvarchar(256) 
Set @Username = 'theUsername'

UPDATE aspnet_Membership
SET IsLockedOut = 0
WHERE UserId IN (SELECT U.UserId
FROM aspnet_Users as U inner join aspnet_Membership M on U.UserId = M.UserId
WHERE u.UserName = @Username)
GO 
SELECT U.UserId,U.UserName,M.Password,M.IsLockedOut,U.LastActivityDate
FROM aspnet_Users as U inner join aspnet_Membership M on U.UserId = M.UserId
WHERE u.UserName = @Username

137号邮件,第15号,第2号,第3行
必须声明标量变量“@Username”.