Powershell中的oracle instantclient 12c EZCONNECT提示输入密码

我已在Windows 8.1上安装instantclient 12c x86

我可以从cmd.exe进行连接：

现在，当我在Powershell中尝试同样的方法时：

我想被提示输入密码。它不起作用

PS C:\Users\vagrant> sqlplus user@\"hostname:1521/SERVICE_NAME\"

SQL*Plus: Release 12.1.0.2.0 Production on Thu Dec 3 06:30:12 2015

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified


Enter user-name:

在这里我提供我的密码，它的工作

PS C:\Users\vagrant>sqlplus user/password@hostname:1521/SERVICE_NAME

SQL*Plus: Release 12.1.0.2.0 Production on Thu Dec 3 06:24:48 2015

Copyright (c) 1982, 2014, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL> 

---

使用Powershell中的sqlplus登录密码时，提示的正确语法是什么？

sqlplususer@hostname：1521/SERVICE\u NAME

？@PetSerAl ORA-12504:TNS:listener未在CONNECT\u数据中获得SERVICE\u NAME如何：

sqlplus--%user@“hostname:1521/SERVICE\u NAME\”

？为什么要添加

\“

？@PetSerAl符号：sqlplus--%user@\“hostname:1521/SERVICE_NAME\”不起作用。非常感谢。你能解释一下--%吗？？

PS C:\Users\vagrant>sqlplus user/password@hostname:1521/SERVICE_NAME

SQL*Plus: Release 12.1.0.2.0 Production on Thu Dec 3 06:24:48 2015

Copyright (c) 1982, 2014, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL>