<div class="jb51code">
<pre class="brush:sql;">
Update Tb_Garden1 G Set Steward = (
Select Id From Zyq.Tb_User U Where Replace(U.Name,'区') = G.Name And Rownum =1)
where exists (select 1 from zyq.tb_user u where Replace(U.Name,'区') = G.Name And rownum = 1)