ORACLE 12c常见问题有哪些

小编给大家分享一下ORACLE 12c常见问题有哪些，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

服务器sqlnet.ora加上

SQLNET.ALLOWED_LOGON_VERSION=8

重建下密码，新旧版本兼容问题，或升级oracle client

alter user sys identified by "密码"

服务器重启时，pdb默认不启动

SQL> col name format A10

SQL> select name , open_mode from v$pdbs;

NAME       OPEN_MODE

ORCLPDB    MOUNTED

SQL> alter pluggable database orclpdb open;

插接式数据库已变更。

SQL> select name , open_mode from v$pdbs;

NAME       OPEN_MODE

ORCLPDB    READ WRITE

创建hr实例

SQL> @C:\app\Administrator\virtual\product\12.2.0\dbhome_2\demo\schema\human_res

ources\hr_main.sql

specify password for HR as parameter 1:

Enter value for 1: hr

specify default tablespeace for HR as parameter 2:

Enter value for 2: user

specify temporary tablespace for HR as parameter 3:

Enter value for 3: temp

specify log path as parameter 4:

Enter value for 4: C:\app\Administrator\virtual\product\12.2.0\dbhome_2\log

alter session set container=ORCLPDB;

SQL> select con_id, dbid, guid, name , open_mode from v$pdbs;CON_IDDBID GUID                                     NAME       OPEN_MODE

########## ########## 5A872545AC274801A748D0A39B5F513A         PDB$SEED   READ ONLY

########## ########## 707A628103304A948B8250B57DDE09FD         ORCLPDB    MOUNTED

SQL> alter session set container=ORCLPDB

2  ;

会话已更改。

SQL> startup

插接式数据库已打开。

SQL> select con_id, dbid, guid, name , open_mode from v$pdbs;CON_IDDBID GUID                                     NAME       OPEN_MODE                                     ---------- ---------- ---------------------------------------- ---------- ----------

########## ########## 707A628103304A948B8250B57DDE09FD         ORCLPDB    READ WRITE

SQL> alter pluggable database close

2  ;

插接式数据库已变更。

SQL> select con_id, dbid, guid, name , open_mode from v$pdbs;

CON_IDDBID GUID                                     NAME       OPEN_MODE                                     ---------- ---------- ---------------------------------------- ---------- ----------

########## ########## 707A628103304A948B8250B57DDE09FD         ORCLPDB    MOUNTED

SQL> alter pluggable database open read only

2  ;

插接式数据库已变更。

SQL> select con_id, dbid, guid, name , open_mode from v$pdbs;

CON_IDDBID GUID                                     NAME       OPEN_MODE                                     ---------- ---------- ---------------------------------------- ---------- ----------

########## ########## 707A628103304A948B8250B57DDE09FD         ORCLPDB    READ ONLY

SQL> alter pluggable database open read write;

alter pluggable database open read write

*

第 1 行出现错误:

ORA-65019: 可插入数据库 ORCLPDB 已打开

SQL> alter pluggable database close;

插接式数据库已变更。

SQL> alter pluggable database open read write;

插接式数据库已变更。

SQL> select con_id, dbid, guid, name , open_mode from v$pdbs;                                                          

CON_ID       DBID GUID                                     NAME       OPEN_MODE

########## ########## 707A628103304A948B8250B57DDE09FD         ORCLPDB    READ WRITE

SQL> alter pluggable database open read write RESTRICTED;

插接式数据库已变更。

SQL> select con_id, dbid, guid, name , open_mode from v$pdbs;

CON_IDDBID GUID                                     NAME       OPEN_MODE

########## ########## 707A628103304A948B8250B57DDE09FD         ORCLPDB    READ WRITE

以上是“ORACLE 12c常见问题有哪些”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注行业资讯频道！