我想从我的UNIX机器连接到Oracle数据库。 我一般是新来的剧本创作。 我知道如何浏览圆UNIX和已经编写Basic脚本（读/显示），并与bash命令执行。 此外，我知道如何查看UNIX中的变量（用户和系统）。 你能告诉我什么，我需要做的连接到Oracle数据库？ 我用sqlplus命令？ 是否有任何变量我必须在那之前设置？
Answer 1:
你能告诉我什么，我需要做的连接到Oracle数据库？ 我用sqlplus命令？
嗯，是的，当然，你需要使用SQL * Plus。 然而，在这之前，你需要确保的几件事情：
- 出口ORACLE_HOME变量
例如，
export ORACLE_HOME=/u01/app/oracle/product/11.2.0
- 出口PATH变量
例如，
export PATH=$PATH:$ORACLE_HOME/bin
- 出口SID
例如，
export ORACLE_SID="your database service name"
- 确保您已在
tnsnames.ora正确配置 - 请确保您有
listener和运行，监听到正确的端口。
你应该能够连接到数据库：
sqlplus username/password@sid
Answer 2:
设置ORACLE_HOME和ORACLE_SID环境变量。 然后使用sqlplus的用户名@ ORACLE_SID
Answer 3:
请确保您已远销所有必要的Oracle变量在您的UNIX用户路径如下环境：
ORACLE_BASE=/home/oracle/app; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/oracle/product/11.2.0/dbhome_1/; export ORACLE_HOME
ORACLE_SID=orcl; export ORACLE_SID
PATH=$ORACLE_HOME/bin:$HOME/bin:$PATH; export PATH
并确保tnsnames.ora文件配置正确，听者应达和下面运行。
[oracle@OLE1 admin]$ cat tnsnames.ora
# tnsnames.ora Network Configuration File: /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ole1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
[oracle@OLE1 ~]$ tnsping orcl
TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 12-JUL-2017 23:12:35
Copyright (c) 1997, 2009, Oracle. All rights reserved.
Used parameter files:
/home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = ole1)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (20 msec)
[oracle@OLE1 ~]$
[oracle@OLE1 ~]$ cat /etc/hosts
127.0.0.1 localhost
::1 localhost
192.168.244.128 ole1
[oracle@OLE1 ~]$
现在你已经通过多种方式从UNIX命令提示符下连接数据库。
甲骨文@ OLE 1〜] $ sqlplus的斯科特/老虎
甲骨文@ OLE 1〜] $ sqlplus的斯科特/老虎@ ORCL
甲骨文@ OLE 1〜] $ sqlplus中scott/tiger@192.168.244.128：1521 / ORCL
甲骨文@ OLE 1〜] $ sqlplus的斯科特/老虎@ // 192.168.244.128:1521/orcl
[预言@ OLE1〜] $ SQLPLUS“斯科特/老虎@（DESCRIPTION =（ADDRESS =（PROTOCOL = TCP）（HOST = OLE1）（PORT = 1521））（CONNECT_DATA =（SERVER = DEDICATED）（SERVICE_NAME = ORCL））） “
[oracle@OLE1 ~]$ sqlplus scott/tiger
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jul 12 23:29:30 2017
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@OLE1 ~]$ sqlplus scott/tiger@orcl
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jul 12 23:30:00 2017
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected
[oracle@OLE1 ~]$
[oracle@OLE1 ~]$ sqlplus scott/tiger@192.168.244.128:1521/orcl
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jul 12 23:30:00 2017
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected
[oracle@OLE1 ~]$
[oracle@OLE1 ~]$ sqlplus scott/tiger@//192.168.244.128:1521/orcl
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jul 12 23:30:00 2017
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected
[oracle@OLE1 ~]$
[oracle@OLE1 ~]$ sqlplus "scott/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ole1)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=orcl)))"
SQL*Plus: Release 11.2.0.1.0 Production on Thu Jul 13 12:30:23 2017
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL>
SQL> show user
USER is "SCOTT"
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@OLE1 ~]$
文章来源: how to connect to an oracle database from unix
