Hi I have a Oracle database installed locally on my laptop. I'd like to connect to it via Codeigniter 4. Since version 4.2.0 it is able to do so.
https://codeigniter4.github.io/CodeIgniter4/changelogs/v4.2.0.html
All my database credentials are in the .env file, but I'm unable to establish connection. I'm new to Oracle.
I can connect to my database via Oracle SQL Developer.
The data I use for the connection:
host: localhost
port: 1521
user: system
password: MYPASSWORD
service name: orcl
How can I use that in my .env file?
This is what I have so far:
database.default.hostname = localhost
database.default.database =
database.default.username = system
database.default.password = MYPASSWORD
database.default.DBDriver = oci8
database.default.DBPrefix =
database.default.port = 1521
I get this error:
Unable to connect to the database.
Main connection [oci8]: oci_connect(): ORA-12504: TNS:listener was not given the SERVICE_NAME in CONNECT_DATA
(.env file)
Try using:
database.default.hostname = '127.0.0.1:1521/orcl'
Where:
'127.0.0.1:1521/orcl', // hostname:db_port/service_name
Related
I am start to learn Oracle DB. I just install it and use SQL Developer to connect to it. But when I use 127.0.0.1 or localhost in the Hostname field, I get this error:
The Network Adapter could not establish the connection (CONNECTIONID = xxx)
But when I enter the PC's IP address into the Hostname field, I can connect to Oracle successfully.
Could you please explain how I can use 127.0.0.1 or localhost in hostname field to connect to to Oracle?
This is a WAG as I've not done this in years, but I'm guessing you need to configure your local database for network connections. Check the docs.
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/admqs/configuring-the-network-environment.html#GUID-5FED211C-ACEF-4B75-9071-E08962A47985
Are you sure you can't just "sqlplus" following the install?
Sorry for the noob question but I am new to Oracle SQL software.
I've been trying to create a connection to my database student (created on SQL Developer), but got quite confusing since I'm using a client-computer which will connect to server.
Below are the info about the connection:
Connection Name: LARGER123
Username: LARGER123
Hostname: uxkg265.admin.plent
Port: 1520
SID: ticp5076
Client-computer username: r5678
When I open the SQL Plus prompt, I tried several combinations on the username in order to establish the connection, but got the same error ORA-12154 Error.
I though that it could be the way I was setting the things on username field, so I followed the instructions from Oracle's website:
https://docs.oracle.com/database/121/ADMQS/GUID-1A15D322-B3AC-426A-86A1-EB7590930687.htm#ADMQS045
Basically it tells to "build" the username structure in that way:
nick#"dbhost.example.com/orcl.example.com"
Where: "nick" is the user; "dbhost.example.com" is the host; and "orcl.example.com" is the database.
So, following the example I put my username in that way and got errors:
LARGER123#"uxkg265.admin.plent/student"
I tried different ways, including the Port and SID but got no success.
Do you have a better idea of what's my mistake?
Are you quite certain somebody is listening where you are trying to connect. I would suggest you start by testing with telnet.
You say your server has the domain name “uxkg265.admin.plent”
nslookup uxkg265.admin.plent
I just checked my IP address and found:
$ nslookup $(hostname)
Server: xxx.xxx.xxx.xxx
Address: xxx.xxx.xxx.xx##53
Name: mydomain.myorg.com
Address: 192.168.56.1
I just tried to connect to my oracle instance and got:
$ telnet 192.168.56.1 1521
Trying 192.168.56.1...
Connected to 192.168.56.1
Escape character is '^]'.
^]
telnet> quit
Connection closed.
If I try to the wrong port, I get:
$ telnet 192.168.56.1 1522
Trying 192.168.56.1...
telnet: connect to address 192.168.56.1: Connection refused
I was able to connect with:
sqlplus myoracle/testpass#192.168.56.1:1521/UPGR
where UPGR is the service name.
I was also able to connect with:
sqlplus myoracle/testpass#"(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.56.1)(PORT=1521))(CONNECT_DATA=(SID=UPGR)))"
With UPGR as the SID.
I had some trouble initially because my version of Oracle Linux had iptables enabled and that was keeping me from connecting using sqlplus. As soon as I disabled this protection, I was able to use Oracle.
sudo service iptables stop
sudo chkconfig iptables off
(Keep in mind that iptables serves a purpose. For my test system running on my PC in VirtualBox, turning it off is fine. For other systems, maybe not.)
ORA-12154 is TNS:could not resolve the connect identifier specified, but you likely aren't using TNS to resolve the connect identifier: have you edited the tnsnames.ora file on the client machine and created an entry for the SID you're trying to connect to? Probably not.
Instead of selecting SID, select "Service name" and put the Oracle SID there. With the "Basic" connection type, that should use the host/port and service name explicitly to build the connection rather than relying on TNS to look up (resolve) the SID.
I am trying to create a new connection in Oracle SQL Developer. Below are the inputs:
Connection Name:Dbms
Username:[My Name]
Password:[Ubuntu Password]
ConnectionType:Basic
Role: default
Hostname: localhost
Port: 1521
SID: xe
Upon clicking Test an error is being displayed:
Network Adapter could not establish connection
I am trying to create a new connection in Oracle SQL Developer.
Below are the inputs i am providing and its failing :
Connection Name: HR_ORCL
Username: hr
Password: (system password)
Hostname: localhost
SID: orcl
Clicking Test Connection .
Failure
Test Failed: ORA-01017:invalid username/password;login denied
I have just downloaded and extracted the Oracle SQLDeveloper in MAC OS X. Until then, when I am establishing a connection using the HR (default) as the username and password, ORCL for the SID... the test result always show "test failed the network adapter could not establish the connection". Any insights...
regards prinsipeluha
Your Host or Port entry is not correct and/or your host is not accessible from your machine (e.g. behind a firewall). If localhost the defaults would be
host: localhost
port: 1521