Oracle基礎：2: sqlplus連線方式
阿新 • • 發佈：2018-12-20
環境準備
使用Oracle的精簡版建立docker方式的demo環境，詳細可參看：
方式1(本機): / as sysdba
在oracle伺服器，可以直接通過作業系統許可權認證，使用sysdba方式登陸，前提是你可以登入伺服器，並且擁有此許可權。
[email protected]:~$ id uid=1000(oracle) gid=1000(dba) groups=1000(dba) [email protected]:~$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.2.0 Production on Sun Oct 21 08:20:51 2018 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production SQL> show user USER is "SYS" SQL>
方式2(本機): sqlplus 使用者名稱/密碼
在本機除了sysdba，還可以通過使用者名稱和密碼的方式登陸進來
[email protected]:~$ sqlplus system/liumiao123 SQL*Plus: Release 11.2.0.2.0 Production on Sun Oct 21 08:21:27 2018 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production SQL> show user USER is "SYSTEM" SQL>
方式3: 通過tnsname方式
通過tns設定，保證聯通性的情況下使用 sqlplus 使用者名稱/密碼@Oracle例項名 的方式進行連線。
確認tns連線通暢
[email protected]:~$ tnsping XE
TNS Ping Utility for Linux: Version 11.2.0.2.0 - Production on 21-OCT-2018 10:32:55
Copyright (c) 1997, 2011, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = e871d42341c0)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
OK (0 msec)
確認oracle的監聽程序正常啟動
[email protected]:~$ ps -ef |grep lsnr |grep -v grep
oracle 27 1 0 Oct16 ? 00:00:28 /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr LISTENER -inherit
[email protected]:~$
連線
[email protected]:~$ sqlplus system/[email protected]
SQL*Plus: Release 11.2.0.2.0 Production on Sun Oct 21 10:34:04 2018
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production
SQL> show user
USER is "SYSTEM"
SQL>
方式4: IP和port的方式定位
還可通過IP和port的方式定位Oracle例項進行連線：sqlplus 使用者名稱/密碼@//IP地址或者hostname:埠號/Oracle例項名
# netstat -tunlp |grep 1521
tcp6 0 0 :::1521 :::* LISTEN -
# ip ad |grep 172.17
inet 172.17.0.2/16 scope global eth0
# sqlplus system/[email protected]//172.17.0.2:1521/XE
SQL*Plus: Release 11.2.0.2.0 Production on Sun Oct 21 10:37:31 2018
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production
SQL>
方法5: 使用nolog 和 connect實現連線
準確的來說，這種方式和方式2/方式3/方式4沒有本質區別，無非就是使用者名稱/密碼以及例項名的資訊的寫法不同而已，詳細如下：
# sqlplus /nolog
SQL*Plus: Release 11.2.0.2.0 Production on Sun Oct 21 11:19:50 2018
Copyright (c) 1982, 2011, Oracle. All rights reserved.
SQL> connect system/liumiao123
Connected.
SQL> connect system/[email protected]
Connected.
SQL> connect system/[email protected]//172.17.0.2:1521/XE
Connected.
SQL> show user
USER is "SYSTEM"
SQL>