1、安裝oracle-instantclient：（默認安裝即可）

oracle-instantclient12.1-sqlplus-12.1.0.1.0-1.x86_64.rpm
oracle-instantclient12.1-devel-12.1.0.1.0-1.x86_64.rpm
oracle-instantclient12.1-basic-12.1.0.2.0-1.x86_64.rpm
2、配置環境變量，修改/etc/profile，文件最后加入以下內容：
export ORACLE_HOME=/usr/lib/oracle/12.1/client64
export LD_LIBRARY_PATH=/usr/lib/oracle/12.1/client64/lib
export PATH=$ORACLE_HOME/bin:$PATH
3、配置監聽
[root@rusky admin]# pwd
/usr/lib/oracle/12.1/client64/network/admin
[root@rusky admin]# ls----------這兩個文件需要手工創建或從服務端拷貝過來，然后修改參數。
??listener.ora? sqlnet.ora? tnsnames.ora?????? //就這三個文件，放到這個目錄下?
==============================
listener.ora:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.111)(PORT = 1521))
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = /usr/lib/oracle/12.1/client64)
(SID_NAME = orcl)
)
)
ADR_BASE_LISTENER = /usr/lib/oracle/12.1/client64/network/admin
===================================
tnsnames.ora
orcl =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.111)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
4、連接oracle數據庫
[root@rusky admin]# sqlplus /nolog;

SQL*Plus: Release 12.1.0.1.0 Production on Sun Sep 28 15:08:03 2014

Copyright (c) 1982, 2013, Oracle. All rights reserved.
SQL> conn rusky@orcl;
Enter password:
Connected.
SQL>

轉載于:https://www.cnblogs.com/rusking/p/3998303.html

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