Oracle的update连表更新使用内联视图:UPDATE (SELECT /*+ BYPASS_UJVC */a.Brchcd AS a_Brchcd, b.Usedbr AS b_Usedbr FROM Com_Brch a, Asd_Card6 b WHERE Substr(b.Usedbr, -4) = Substr(a.Brchna, -4)) SET b_Usedbr = a_Brchcd;MySQL 环境变量的配置详细说明查看Oracle表空间是否自动扩展相关资讯 Oracle教程