在这个示例中，我们首先做了一个例子，目的是实现以上要求.
首先进行适当授权：
[oracle@jumper oracle]$ sqlplus "/ as sysdba"SQL*Plus: Release 9.2.0.4.0 - Production on Tue Nov 7 21:07:56 2006Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.Connected to:Oracle9i Enterprise Edition Release 9.2.0.4.0 - ProductionWith the Partitioning optionJServer Release 9.2.0.4.0 - ProductionSQL> grant create public database link to eygle;Grant succeeded.SQL> grant all on dbms_flashback to eygle;Grant succeeded. |
然后建立DB Link:
SQL> connect eygle/eygleConnected.SQL> create public database link hsbill using 'hsbill';Database link created.SQL> select db_link from dba_db_links;DB_LINK---------------------------------------------------HSBILLSQL> select * from dual@hsbill;D-X |
在此之后我们可以尝试使用DB Link进行远程和本地执行:
SQL> set serveroutput on
SQL> set feedback off
SQL> declare
2 r_gname varchar2(40);
3 l_gname varchar2(40);
4 begin
5 execute immediate
6 'select GLOBAL_NAME from global_name@hsbill' into r_gname;
7 dbms_output.put_line('gname of remote:'||r_gname);
8 select GLOBAL_NAME into l_gname from global_name;
9 dbms_output.put_line('gname of locald:'||l_gname);
10 end;
11 /
gname of remote:HSBILL.HURRAY.COM.CN
gname of locald:EYGLE
远程Package或Function调用也可以随之实现:
SQL> declare2 r_scn number;3 l_scn number;4 begin5 execute immediate6 'select dbms_flashback.GET_SYSTEM_CHANGE_NUMBER@hsbill from dual' into r_scn;7 dbms_output.put_line('scn of remote:'||r_scn);8 end;9 /scn of remote:18992092687SQL> -The End- |
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