IDENT_CURRENT('TableName')为当前的最大标识值,IDENT_INCR('TableName')为设置的标识值增量, 两者相加即为下一个标识值
SELECT IDENT_CURRENT('TableName') + IDENT_INCR('TableName');
参考链接:https://social.microsoft.com/Forums/zh-CN/07c3a188-5ae1-4623-ba14-0ae2148f5be0/sql-server-id?forum=sqlserverzhchs
MSDN Reference :https://msdn.microsoft.com/en-us/library/ff848728.aspx