mssql 两个表的UPDATE用法

2025-03-13 06:32:19
推荐回答(2个)
回答1:

update fromB
set tp2 = a.tp2
from
(
select tpname,tp2 from fromA
) as a
where tpname = a.tpname

回答2:

update froma set froma.tp2=fromb.tp2 from formb where froma.tpname=fromb.tpname