oracle 19c创建db_link名称带.com域名问题处理
文章目录
- 一、修改PDB的global_name
- 二、重启数据库实例
- 三、修改domain后重试
一、修改PDB的global_name
SYS@orcl1>sho pdbsCON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------2 PDB$SEED READ ONLY NO3 PDB READ WRITE NO
SYS@orcl1>alter session set container=pdb;Session altered.SYS@orcl1>select * from global_name;GLOBAL_NAME
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PDB.CN.OSC.ORACLE.COMSYS@orcl1>sho pdbsCON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------3 PDB READ WRITE NO
SYS@orcl1>
SYS@orcl1>sho parameter domainNAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_domain string cn.osc.oracle.com
SYS@orcl1>
SYS@orcl1>UPDATE GLOBAL_NAME SET GLOBAL_NAME='orcl';1 row updated.SYS@orcl1>commit;Commit complete.SYS@orcl1>select * from global_name;GLOBAL_NAME
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orcl
cdb信息确认：
SYS@orcl1>alter session set container=cdb$root;Session altered.SYS@orcl1>sho pdbsCON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------2 PDB$SEED READ ONLY NO3 PDB READ WRITE NO--- there is nothing change for cdb
SYS@orcl1>select * from global_name;GLOBAL_NAME
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ORCL.CN.OSC.ORACLE.COM二、重启数据库实例
#grid
srvctl stop database -o immediate -d orcl
srvctl start database -d orcl
测试：
创建dblink后，查询字典表dba_db_links来确认dblink名称是否可以创建为不带域名的。
三、修改domain后重试
如以上未成功可尝试此操作
#首先show parameter domain看参数值，需要设为null
alter system set db_domain='' scope=spfile sid='*';
#重启数据库实例