T-SQL将当前行更新为下一行的值问题

我认为可更新的CTE是必经之路。在SQL Server 2012+中，可以使用

lead()

with toupdate as (      select t.*,  lead(start_date) over (partition by entity order by start_date) as next_start_date      from t     )update toupdate     set end_date = dateadd(day, -1, next_start_date)     where end_date = dateadd(day, -1, start_date);