UPDATE louyus SET (jd, dz, jcnf,cs,jzmj,qlr,zj,rzl) = (SELECT jd, dizhi, jcnf,cs,jzmj,qlr,zj,rzl FROM linshi WHERE louyus.name = linshi.name)?指定了 name=name是oracle 數據庫
請問為什么我louyus表內的原有數據會被覆蓋了呢？
慕函數5116900
2018-09-10 16:49:26
