更新SQL抛出错误中的语句

Question

 update t1
set t1.Act_flg='N'
from STG_EmployeeMaster t1
where t1.GPN NOT IN (#Temp_EmployeeMaster.GPN) t2

获取错误：'t2'附近的语法不正确。

Answer 1

update t1
set t1.Act_flg='N'
from STG_EmployeeMaster t1
where t1.GPN NOT IN (select GPN from #Temp_EmployeeMaster)