Dear oracle gurus,
I am unable to get past the error ORA-12154: TNS: could not resolve
service name on my host when using hsodbc to talk to a remote mysql
database. i got from the meta link all the needed documenatation to
configure inithsodbc.ora,listener.ora,tnsnames.ora and related errors
Here is what it says
ORA-12154:
SQL> select * from all_catalog@demo;
select * from all_catalog@demo
*
ERROR at line 1:
ORA-12154: TNS:could not resolve service name
Resolution:
The database link uses a SQL*Net alias not specified
in the TNSNAMES.ORA of the database server.
Query the data dictionary to figure out the 'HOST'
specified for the database link:
select db_link, host from user_db_links;
or
select db_link, host from dba_db_links;
The 'HOST' value is the alias of the SQL*Net.
Please make sure it exists in the TNSNAMES.ORA file
present at the Oracle database server.
I did this query and the host value and SQL*Net alias match.
I dont know what is that i am missing
Your help is greatly appreciated.
-thanks,
avsrk 5 32207
Remote mysql database using tnsnames.ora ?
Or am I missing something over here ?
//tc
"Subrahmanyam Arya" <av***@mailcity.com> wrote in message
news:25**************************@posting.google.c om... Dear oracle gurus,
I am unable to get past the error ORA-12154: TNS: could not resolve service name on my host when using hsodbc to talk to a remote mysql database. i got from the meta link all the needed documenatation to configure inithsodbc.ora,listener.ora,tnsnames.ora and related errors Here is what it says
ORA-12154: SQL> select * from all_catalog@demo; select * from all_catalog@demo * ERROR at line 1: ORA-12154: TNS:could not resolve service name
Resolution: The database link uses a SQL*Net alias not specified in the TNSNAMES.ORA of the database server. Query the data dictionary to figure out the 'HOST' specified for the database link: select db_link, host from user_db_links; or select db_link, host from dba_db_links; The 'HOST' value is the alias of the SQL*Net. Please make sure it exists in the TNSNAMES.ORA file present at the Oracle database server.
I did this query and the host value and SQL*Net alias match. I dont know what is that i am missing
Your help is greatly appreciated.
-thanks, avsrk av***@mailcity.com (Subrahmanyam Arya) wrote in message news:<25**************************@posting.google. com>... Dear oracle gurus,
I am unable to get past the error ORA-12154: TNS: could not resolve service name on my host when using hsodbc to talk to a remote mysql database. i got from the meta link all the needed documenatation to configure inithsodbc.ora,listener.ora,tnsnames.ora and related errors Here is what it says
ORA-12154: SQL> select * from all_catalog@demo; select * from all_catalog@demo * ERROR at line 1: ORA-12154: TNS:could not resolve service name
Resolution: The database link uses a SQL*Net alias not specified in the TNSNAMES.ORA of the database server. Query the data dictionary to figure out the 'HOST' specified for the database link: select db_link, host from user_db_links; or select db_link, host from dba_db_links; The 'HOST' value is the alias of the SQL*Net. Please make sure it exists in the TNSNAMES.ORA file present at the Oracle database server.
I did this query and the host value and SQL*Net alias match. I dont know what is that i am missing
Your help is greatly appreciated.
-thanks, avsrk
It doesn't really make sense to post this question without the
relevant *.ora files. No one here is clairvoyant and crystall balls
have sold out here.
General note: syntax errors like missing parentheses in tnsnames.ora
also result in ora-12154. Please use a magnifying glass to check
whether the () match.
Sybrand Bakker
Senior Oracle DBA
Hi there,
Obviously no..tnsnames.ora on the Oracle end is configured properly.
but i still get that error
Any clue,
avsrk
"TC" <do******@donotuse.com> wrote in message news:<qmoKa.18840$3d.12014@sccrnsc02>... Remote mysql database using tnsnames.ora ?
Or am I missing something over here ?
//tc "Subrahmanyam Arya" <av***@mailcity.com> wrote in message news:25**************************@posting.google.c om... Dear oracle gurus,
I am unable to get past the error ORA-12154: TNS: could not resolve service name on my host when using hsodbc to talk to a remote mysql database. i got from the meta link all the needed documenatation to configure inithsodbc.ora,listener.ora,tnsnames.ora and related errors Here is what it says
ORA-12154: SQL> select * from all_catalog@demo; select * from all_catalog@demo * ERROR at line 1: ORA-12154: TNS:could not resolve service name
Resolution: The database link uses a SQL*Net alias not specified in the TNSNAMES.ORA of the database server. Query the data dictionary to figure out the 'HOST' specified for the database link: select db_link, host from user_db_links; or select db_link, host from dba_db_links; The 'HOST' value is the alias of the SQL*Net. Please make sure it exists in the TNSNAMES.ORA file present at the Oracle database server.
I did this query and the host value and SQL*Net alias match. I dont know what is that i am missing
Your help is greatly appreciated.
-thanks, avsrk
Hi sybrand,
I cross checked all the paranthesis and syntax. Interestingly, if i
were to edit the tnsnames.ora i face this problem. I tried launching
netasst and deleted and recreated the alias and the problem
disappeared.
Does it have some thing to do with not editing this file manually ???
-thx,
avsrk sy******@yahoo.com wrote in message news:<a1**************************@posting.google. com>... av***@mailcity.com (Subrahmanyam Arya) wrote in message news:<25**************************@posting.google. com>... Dear oracle gurus,
I am unable to get past the error ORA-12154: TNS: could not resolve service name on my host when using hsodbc to talk to a remote mysql database. i got from the meta link all the needed documenatation to configure inithsodbc.ora,listener.ora,tnsnames.ora and related errors Here is what it says
ORA-12154: SQL> select * from all_catalog@demo; select * from all_catalog@demo * ERROR at line 1: ORA-12154: TNS:could not resolve service name
Resolution: The database link uses a SQL*Net alias not specified in the TNSNAMES.ORA of the database server. Query the data dictionary to figure out the 'HOST' specified for the database link: select db_link, host from user_db_links; or select db_link, host from dba_db_links; The 'HOST' value is the alias of the SQL*Net. Please make sure it exists in the TNSNAMES.ORA file present at the Oracle database server.
I did this query and the host value and SQL*Net alias match. I dont know what is that i am missing
Your help is greatly appreciated.
-thanks, avsrk
It doesn't really make sense to post this question without the relevant *.ora files. No one here is clairvoyant and crystall balls have sold out here. General note: syntax errors like missing parentheses in tnsnames.ora also result in ora-12154. Please use a magnifying glass to check whether the () match.
Sybrand Bakker Senior Oracle DBA
You must have made a mistake when manually editing your tnsnames.
There's no rule prohibiting manual modifications in tnsnames (as a
matter of fact, I can't remember the last time I used a tool such as
netasst to edit it), but Oracle doesn't allow any syntax mistake at
all (such as extra parenthesis, anything misspelled, ...).
Daniel I cross checked all the paranthesis and syntax. Interestingly, if i were to edit the tnsnames.ora i face this problem. I tried launching netasst and deleted and recreated the alias and the problem disappeared.
Does it have some thing to do with not editing this file manually ???
-thx, avsrk
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