--同义词(别名) 注意:如果查看其他用户的表,报错表或视图不存在 可能是权限不足 需要授权:conn/as sysdba grant select on hr.employees to scott; conn scott/tiger select count(*) from hr.employees; conn/as sysdba grant create synonym to scott; conn scott/tiger create synonym hremp for hr.employees; --创建私有同义词 select count(*) from hremp; conn/as sysdba grant create public synonym to scott; conn scott/tiger create public synonym hremp2 for hr.employees; --创建共有同义词 drop synonym hremp; conn /as dba grant drop public synonym hremp2 to scott; conn scott/tiger drop public synonym hremp2 --共有同义词操作(创建、删除)一般建议管理员删除操作...