I want to connect with my Oracle database without installing Oracle Client.
I downloaded:
"Instant Client Package - Basic" and
"Instant Client Package - SQL*Plus"
Then I created folder on C:\Oracle\instantclient, where I extracted all packages.
I have been set system environment like:
Path - C:\Oracle\instantclient
NSL_LANG - with properly key
ORACLE_HOME - C:\Oracle\instantclient
ORACLE_SID - C:\Oracle\instantclient
TNS_ADMIN - C:\Oracle\instantclient
Then I created tnsnames.ora file with configuration in C:\Oracle\instantclient
and when I puted a command to cmd:
sqlplus user/password #HOST
I have a message like:
ERROR:
ORA-12560: TNS:protocol adapter error
but when I tried like:
sqlplus user/password#(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=address to host)(Port=1521))(CONNECT_DATA=(SID=address to SID)))
everything works properly. Why SQL have a problem with recognize tnsnames.ora file?
Your command should be:
sqlplus user/password#HOST
with no space between the password and #HOST part.
With the space it treats the #HOST as a script to execute once you've logged in, and it tries to connect locally, which produced that TNS error. (As you don't log in the HOST isn't ever evaluated to establish if it exists, so it's effectively noise at this point).
C:\>sqlplus -l -s x/y #HOST
ERROR:
ORA-12560: TNS:protocol adapter error
SP2-0751: Unable to connect to Oracle. Exiting SQL*Plus
With the space removed it looks for HOST as a TNS alias:
C:\>sqlplus -l -s x/y#HOST
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
SP2-0751: Unable to connect to Oracle. Exiting SQL*Plus
For me that still gets an error since I don't have HOST in my tnsnames.ora, but it's a different error and you can see it's at least trying to use it as a TNS alias. If you have it defined properly it will be able to connect to your database.
NEVER edit $ORACLE_HOME/network/admin/tnsname.ora manually, use "netmr" to create Local Name.
Don't know why it's same but do not work.
This commando works fine for me:
sqlplus /nolog
connect username/password#hostname:port/SERVICENAME
Related
I'm trying to run sql loader with the following syntax on a remote bbdd:
sqlldr user/password#host.sid control=loader_control_file.ctl
(where host.sid is the remote bbdd tnsnames entry) and it gives the following error
SQL*Loader-704: Internal error: ulconnect: OCIServerAttach [0]
ORA-12546: TNS:permission denied
I have the connection configured in my local tnsnames.ora, tnsping resolves the sid and sqlplus connects (and works) correctly so apparently tnsnames setup is good.
I've also tried EZconnect syntax
sqlldr user/password#//host:1521/sid control=loader_control_file.ctl
buts gives the same error
I have no idea of what is wrong here. Any help?
I am able to connect to Oracle DB using Toad with Datasource name and username/password. Oracle client 12 as Oracle driver. oracle database path is set properly in the environment variables. sqlnet.ora, listener.ora and tnsnames.ora is present in ORACLE\ORANT\NETWORK\ADMIN folder and configured properly. I tried to query using Sqlplus in cmd prompt using following command:
connect User/pass#dw-prod.server.int:1527/pdw1s_servicename
I am getting ORA-12170: TNS Connect timeout error. Please help.
In SQL*Plus, just need to connect using the TNS alias.
connect user/password#tns_alias
If your password contains specific characters like # or ! probably you are getting the error for this
Connecting through Oracle SQL Developer(version 18.2.0.183) using wallet files(cwallet.sso and ewallet.p12) we are getting the following error “ORA-12154:TNS:could not resolve the connect identifier specified “when we test the connection via Advanced connection type in SQL Developer. We are using “jdbc:oracle:oci:/#NAME”. We are able to connect using SQLPLUS using “sqlplus /#NAME”. This is on a Mac(High Sierra) with the Instant Client Version 12.2.0.1.0.
https://www.oracle.com/technetwork/topics/intel-macsoft-096467.html
We have the TNSNAMES.ora and SQLNET.ora files configured and the wallet is set and working fine with SQLPLUS.
Is there anything we should look at to troubleshoot this further? Or any workarounds you might suggest?
Thanks,
Tom
Same advice I gave on the OTN forums -
make sure SQL Developer is reading the TNSNAMES file you think it is.
show tns
connect hr/oracle#orcl -- execute in a sqlworksheet with F5
TNS Lookup locations
--------------------
1. USER Home dir
C:\Users\jdsmith
Location used:
-------------
C:\Users\jdsmith
Available TNS Entries
---------------------
LISTENER_ORCL12C
ORCL
ORCL12C
Connected.
Connection created by CONNECT script command disconnected
If that fails, try EZCONNECT syntax
connect hr/oracle#server:port/SID
Also, there is a TNS connection type you can use. If OCI is enabled in preferences, your connection will be 'thick' and use sqlnet and tnsnames ora files.
When I use the command:
sqlplus username#ip_address:1521
I get the error:
ORA-12154: TNS:could not resolve the connect identifier specified
When I set ORACLE_HOME to /cygdrive/c/oracle/product/10.2.0/client_1, I get a different error:
Error 6 initializing SQL*Plus
Message file sp1<lang>.msb not found
SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory
I can telnet to the server's port 1521.
I also tried the Windows path for ORACLE_HOME but it gives me the same error, also in Cygwin when I change the $PATH = $ORACLE_HOME/bin no command is recognized.
I am able to connect to this database via a excel macro but not using cmd.exe or Cygwin .
If you don't want to use TNSNAMES.ORA to specify the connection parameters you need to provide them on the command line. This works with the widest variety of SQLPlus versions.
sqlplus OraUser/OraPassword#'(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=remoteServer)(PORT=1521)))(CONNECT_DATA=(SID=OraSid)))'
Note ' is for Unix and needs to be changed to " for Windows.
I am trying to make a connection using Toad to a database (xe10 free edition) and it givea me a error:
ORA-12154
I tried changing the sqlnetORA to:
SQLNET.AUTHENTICATION_SERVICES= (NONE)
and still the same error.
1st check to make sure you can ping the database, if yes move to next step if not resolve firewall/network issues.
2nd check to see if you can connect via SQL*plus. If you can connect with SQL+ then your TNS is fine and Toad seems to be the issue, if you cannot then there is an issue with your TNS file.
Be sure to try and connect directly using the following method:
In Toad click "Session" > "New Connection"
There are 3 options TNS, Direct, LDAP (Shown as Tabs) . Select "Direct"
User: sys
Password : <passwd>
Host: 127.0.0.1
Port: 1521
Service Name: XE
Connect as: SYSDBA
If you are unable to connect via SQL+ or Toad then fix your .tns, I have attached a few helpful links below which should help resolve your problem.
http://www.dba-oracle.com/t_ora_12154_tns_resolve_service_name.htm
http://www.orafaq.com/wiki/Tnsnames.ora
try to comment the following line in sqlnet.ora
#names.default_domain = world
otherwise, Oracle will append .world to your host string
Often, it's a typographical error in your connexion string or in your tnsnames.ora file. More information here : 11g/ORA-12154.