oralce创建dblink

CREATE DATABASE LINK dblinkName CONNECT TO dbLoginName IDENTIFIED BY dbLoginPwd USING '(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521))(CONNECT_DATA=(SID=orcl)))';

select * from orclLoginName.tableName1@dblinkName;

drop DATABASE LINK dblinkName;

/*dblinkName：dblink名称 dbLoginName：登录名 dbLoginPwd：登录密码

*/