如果值为true则不接受数据的约束（1）

Question

如果IsSuccess = 1已存在UpdateID行，我怎么能创建一个不接受行的表？

Create table myTable
(
UpdateID int,
IsSuccess bit,
)

UpdateID   IsSuccess
--------   ---------
1          0      -- sucesss
1          0      -- success, There is no row for UpdateID = 1 where IsSuccess = 1
1          0      -- success, There is no row for UpdateID = 1 where IsSuccess = 1
1          1      -- success, There is no row for UpdateID = 1 where IsSuccess = 1
1          1      -- fails, There is row for UpdateID = 1 where IsSuccess = 1
1          0      -- fails, There is row for UpdateID = 1 where IsSuccess = 1
2          0      -- success, There is no row for UpdateID = 2 where IsSuccess = 1
2          1      -- success, There is no row for UpdateID = 2 where IsSuccess = 1
2          0      -- fails, There is row for UpdateID = 2 where IsSuccess = 1
2          1      -- fails, There is row for UpdateID = 2 where IsSuccess = 1