merge
的有关信息介绍如下：
merge into table a
using
() b on a=b
when matched then
update set k=(case when a=1 and b=2 then 1 else k end),
m=(case when a=2 and b=1 then 2 else m end) where...;
when not matched then
merge
Simone
发布于 2026-01-27 16:23:53
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