PLSQL连接本地oracle或远程oracle数据库实现随意切换功能_Oracle

PLSQL连接本地oracle或远程oracle数据库实现随意切换功能

2021-09-28 15:19前方一片光明 Oracle

这篇文章主要介绍了PLSQL连接本地oracle或远程oracle数据库实现随意切换功能,本文给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值，需要的朋友可以参考下

前言

先赞后看，此生必赚！

每次安装Oracle以后，都会出现使用plsql连接不上的问题！多次重启电脑、重装系统的磨人经历之后，

今天看到这篇文章算是你我之幸！希望能帮助广大技术人员减少一些时间，顺利进行连接！

注：也可以用plsql连接远程数据库（只要有oracle的network\admin\tnsnames.ora就行）。

首先下载64位oracle以及32位轻量级客户端(注意版本的对应，我用的是11g的oracle和11.2的客户端)：

点击进入oracle下载页面点击进入客户端下载页面

以下步骤请自行更改路径，不然，出错了别怪我哦：

oracle安装到某路径下，安装步骤很简单，网上可以搜到！

客户端随便解压到一个路径，我的是放在D:\app\shuhao\instantclient_11_2了。

然后把oracle中的D:\app\shuhao\product\11.2.0\dbhome_1里面的整个network文件夹复制，

粘贴到客户端文件夹D:\app\shuhao\instantclient_11_2下面，如下图所示：

PLSQL连接本地oracle或远程oracle数据库实现随意切换功能

D:\app\shuhao\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora文件内容，添加一个SID_DESC：

# listener.ora Network Configuration File: D:\app\shuhao\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = D:\app\shuhao\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:D:\app\shuhao\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
#下面的SID_DESC是新增加的内容，注意修改ORACLE_HOME路径
(SID_DESC =
(SID_NAME = orcl)
(ORACLE_HOME = D:\app\shuhao\product\11.2.0\dbhome_1)
(GLOBAL_DBNAME = orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
ADR_BASE_LISTENER = D:\app\shuhao

D:\app\shuhao\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.ora文件内容，源文件没有做改动：

# tnsnames.ora Network Configuration File: D:\app\shuhao\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)
LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

D:\app\shuhao\instantclient_11_2\network\admin\tnsnames.ora文件内容:

# tnsnames.ora Network Configuration File: D:\app\shuhao\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)
LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
#新增 @ 标识符，用于区分本地与远程oracle
ORCL@192.168.0.164 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.164)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)