一、dblink远程调用procedure:
1、写了一个调用远端sayHello存储过程的存储过程,远端sayHello存储过程如下:
-- 远端 sayHello 定义如下: create or replace procedure sayHello(currentTime out varchar) is begin select 'Hello World' into currentTime from dual; end sayHello;
2、实现的sayRemoteHello存储过程如下:
create or replace procedure sayRemoteHello(name varchar, pwd varchar, ip varchar) authid current_user as sqlstr varchar(1000); r varchar(100); begin sqlstr:='drop database link tlink'; execute immediate sqlstr; -- sqlstr:= 'create database link tlink connect to scott identified by fj1234 using ''(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.70)(PORT = 1521)))(CONNECT_DATA = (SERVICE_NAME = orcl)))'''; -- SERVICE_NAME 使用 SELECT * FROM GLOBAL_NAME; 可查,默认为orcl sqlstr:= 'create database link tlink connect to '||name||' identified by '||pwd||' using ''(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = '||ip|| ')(PORT = 1521)))(CONNECT_DATA = (SERVICE_NAME = orcl)))'''; execute immediate sqlstr; sqlstr:='begin sayHello@tlink(:a); end;'; execute immediate sqlStr using out r; dbms_output.put_line(r); end sayRemoteHello;
3、 测试如下:
--测试:call sayRemoteHello('scott', 'fj1234', '192.168.0.70');
二、dblink远程调用function:
三、dblink远程调用sequence:
SELECT 序列名.NEXTVAL@方案名 FROM DUAL; 如: SELECT S_USER.NEXTVAL@SKOCRM FROM DUAL;