sql 插入数据检查[新建唯一索引]唯一索引

CREATE UNIQUE NONCLUSTERED INDEX [2] ON [dbo].[AllPlayer]
(
[userid] ASC,
[loginname] ASC,
[nickname] ASC

)WITH (STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]