oracle 根据一个表更新另一个表内容 - 骚年轻狂

declare
cursor c_col is select * from xtgl_jgmcbm where substr(v_jgbm,0,2)in(\'41\');--v_sjbm in( select distinct substr(v_zjhm_mq,0,6) from etbj_fmdj where length(v_dzpath)=7 and substr(v_zjhm_mq,0,2)=\'45\' );
begin
for r_col in c_col loop
update etbj_fmdj set v_dzpath=r_col.v_jgbm where v_xzdz like \'%\'||r_col.v_dz||\'%\' and length(v_dzpath)=7 ;
end loop;
end;