# SQL*plus ( to Oracle)
### How to use from delta.cs.uwindsor.ca
[](https://itfaq.cs.uwindsor.ca/uploads/images/gallery/2024-01/microsoftteams-image.png)
### Troubleshooting
#### Login problems
##
Oracle database user accounts and passwords are created, synchronized, or unlocked from the [CS Password Utility](https://auth.cs.uwindsor.ca).
Make sure you are using your UWinID as your <user-name>, all lowercase without @uwindsor.ca appended.
If your password does not meet the following restrictions, you MUST enclose your password in double quotation marks when prompted.
The password restrictions for Oracle account passwords are as follows:
- Passwords cannot contain quotation marks.
- Passwords are case sensitive.
- A password must begin with an alphabetic character.
- Passwords can contain only alphanumeric characters and the underscore (\_), dollar sign ($), and pound sign (#).
- Password may NOT contain the @ character.
- Oracle strongly discourages you from using $ and #.
**Common Errors**
```
ERROR:
ORA-01017: invalid username/password; logon denied
```
Your password meets the character requirements, but you typed in the wrong password.
Synchronize your password again using the [CS Password Utiliity](https://cs.uwindsor.ca/password).
```
ERROR:
ORA-12532: TNS:invalid argument
```
Your password contains characters, probably **@**, that require you to enclose it within double quotation marks.
### Running sqlplus from your machine at home
Install Oracle client. Use Global Protect[ VPN ](https://itfaq.cs.uwindsor.ca/books/cs-help/page/vpn)and sign in to campus.
Just type *sqlplus* at a terminal window prompt.
It uses the following tnsnames.ora to establish the connection with the CS01 instance on oracle.cs.uwindsor.ca:
```
CS01 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = oracle.cs.uwindsor.ca)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SID = cs01)
)
)
```