Create readonly dblink

Dear,
i would like to create a dblink from one db to another with read only permission but seems could not find anything in the doc
regarding readonly dblink.
Please help if you know to create a read only dblink.
Thanks,
Tom

Tom,
I fail to see the problem.
Ideally one doesn't specify the user at all in the connect to clause of the create database link command.
In that case Oracle will use the username and password of the current user and use it to connect to the target database.
The other alternative is to setup a specific user in the target database and to hardcode this user in the create database link command in the source database.
I fail to see why this shouldn't work in your situation.
Sybrand Bakker
Senior Oracle DBA

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Problem while selecting a table after creating the dblink

Hi,
We have created the dblink for oracle to sql server and it created successfully,
But while selecting the table from oracle we are getting the below issue,
select * from "sysdiagrams"@omniyat;
ERROR at line 1:
ORA-00942: table or view does not exist
[Microsoft][ODBC SQL Server Driver][SQL Server]Invalid object name
'sysdiagrams'. {42S02,NativeErr = 208}[Microsoft][ODBC SQL Server Driver][SQL
Server]Statement(s) could not be prepared. {42000,NativeErr = 8180}
ORA-02063: preceding 2 lines from OMNIYAT
Kindly provide us the solution to resolve this issue.
Regards
Sham

Please see:
Odbc Connection From Oracle To SQL*Server Fails With Errors Ora-28546 and Ora-2063 When Using Connection via Database Link. (Doc ID 1389492.1)
To BottomTo Bottom
Error 08001,NativeErr = 11 Instance Invalid or Not Running Connecting to SQL*Server Using Dg4MSQL (Doc ID 1349023.1)
How to Resolve Common Errors Encountered while using Database Gateways (DG4IFMX, Dg4MSQL, DG4SYBS), DG4ODBC or Generic Connectivity (Doc ID 234517.1)
Thanks,
Hussein

Create a dblink oracle to postgres with dg4odbc

Hi,
I'm trying to create a dblink from a database Oracle (10.2.0.3) to PostgreSQL database (8.3.11) with DG4ODBC (11.2.0.1.0).
I've installed the postgres driver 64 bit :
file /usr/lib64/psqlodbc.so
/usr/lib64/psqlodbc.so: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), strippedI'm configuring the /oracle/.odbc.ini :
[record]
Driver=/usr/lib64/psqlodbc.so
Description = PostgreSQL ODBC
Servername       = cdxlan035
Port         = 5435
Username         = rec_lct
Password     = rec_lct
Database     = REC_TESTI'm configuring the /oracle/product/DG4ODBC/hs/admin/initrecord.ora like this :
# HS init parameters
HS_FDS_CONNECT_INFO = record
HS_FDS_TRACE_LEVEL = 4
HS_FDS_TRACE_FILE_NAME = /oracle/product/DG4ODBC/hs/log/hsodbc.trc
HS_FDS_SHAREABLE_NAME = /usr/lib64/psqlodbc.so
# ODBC specific environment variables
set ODBCINI=/oracle/.odbc.iniI'm configuring the /oracle/product/DG4ODBC/network/admin/listener.ora
LISTENER_HS =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = cdxlan036.douane)(PORT = 1525))
ADR_BASE_LISTENER_HS = /oracle/product/DG4ODBC
SID_LIST_LISTENER_HS =
(SID_LIST =
    (SID_DESC =
      (PROGRAM = dg4odbc)
      (ORACLE_HOME = /oracle/product/DG4ODBC)
      (SID_NAME = record)
      (ENVS=LD_LIBRARY_PATH=/usr/lib64:/oracle/product/DG4ODBC/lib:/oracle/product/10.2.0/lib)
)I'm updating my /oracle/product/10.2.0/network/admin/tnsnames.ora :
RECORD2 =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = cdxlan036)(PORT = 1525))
    (CONNECT_DATA =
      (SID = record)
    (HS=OK)
   )In last i'm creating the dblink :
CREATE DATABASE LINK "RECORD" CONNECT TO "rec_lct" IDENTIFIED BY "rec_lct" USING 'RECORD2';When i'm trying to select my postgres database, that doesn't work. Here the /oracle/product/DG4ODBC/hs/log/record.log :
[oracle@cdxlan036 log]$ cat record_agt_30445.trc
Oracle Corporation --- MONDAY    FEB 27 2012 17:11:31.204
Heterogeneous Agent Release
11.2.0.1.0
Oracle Corporation --- MONDAY    FEB 27 2012 17:11:31.204
    Version 11.2.0.1.0
Entered hgogprd
HOSGIP for "HS_FDS_TRACE_LEVEL" returned "4"
Entered hgosdip
setting HS_OPEN_CURSORS to default of 50
setting HS_FDS_RECOVERY_ACCOUNT to default of "RECOVER"
setting HS_FDS_RECOVERY_PWD to default value
setting HS_FDS_TRANSACTION_LOG to default of HS_TRANSACTION_LOG
setting HS_IDLE_TIMEOUT to default of 0
setting HS_FDS_TRANSACTION_ISOLATION to default of "READ_COMMITTED"
setting HS_NLS_NCHAR to default of "AL32UTF8"
setting HS_FDS_TIMESTAMP_MAPPING to default of "DATE"
setting HS_FDS_DATE_MAPPING to default of "DATE"
setting HS_RPC_FETCH_REBLOCKING to default of "ON"
setting HS_FDS_FETCH_ROWS to default of "100"
setting HS_FDS_RESULTSET_SUPPORT to default of "FALSE"
setting HS_FDS_RSET_RETURN_ROWCOUNT to default of "FALSE"
setting HS_FDS_PROC_IS_FUNC to default of "FALSE"
setting HS_FDS_CHARACTER_SEMANTICS to default of "FALSE"
setting HS_FDS_MAP_NCHAR to default of "TRUE"
setting HS_NLS_DATE_FORMAT to default of "YYYY-MM-DD HH24:MI:SS"
setting HS_FDS_REPORT_REAL_AS_DOUBLE to default of "FALSE"
setting HS_LONG_PIECE_TRANSFER_SIZE to default of "65536"
setting HS_SQL_HANDLE_STMT_REUSE to default of "FALSE"
setting HS_FDS_QUERY_DRIVER to default of "TRUE"
setting HS_FDS_SUPPORT_STATISTICS to default of "FALSE"
Parameter HS_FDS_QUOTE_IDENTIFIER is not set
setting HS_KEEP_REMOTE_COLUMN_SIZE to default of "OFF"
setting HS_FDS_GRAPHIC_TO_MBCS to default of "FALSE"
setting HS_FDS_MBCS_TO_GRAPHIC to default of "FALSE"
Default value of 64 assumed for HS_FDS_SQLLEN_INTERPRETATION
setting HS_CALL_NAME_ISP to "gtw$:SQLTables;gtw$:SQLColumns;gtw$:SQLPrimaryKeys;gtw$:SQLForeignKeys;gtw$:SQLProcedures;gtw$:SQLStatistics;gtw$:SQLGetInfo"
setting HS_FDS_DELAYED_OPEN to default of "TRUE"
setting HS_FDS_WORKAROUNDS to default of "0"
Exiting hgosdip, rc=0
ORACLE_SID is "record"
Product-Info:
Port Rls/Upd:1/0 PrdStat:0
Agent:Oracle Database Gateway for ODBC
Facility:hsa
Class:ODBC, ClassVsn:11.2.0.1.0_0008, Instance:record
Exiting hgogprd, rc=0
Entered hgoinit
HOCXU_COMP_CSET=1
HOCXU_DRV_CSET=31
HOCXU_DRV_NCHAR=873
HOCXU_DB_CSET=31
HOCXU_SEM_VER=102000
Entered hgolofn at 2012/02/27-17:11:31
HOSGIP for "HS_FDS_SHAREABLE_NAME" returned "/usr/lib64/psqlodbc.so"
Entered hgolofns at 2012/02/27-17:11:31
libname=/usr/lib64/psqlodbc.so, funcname=SQLAllocHandle
peflerr=6521, libname=/usr/lib64/psqlodbc.so, funcname=SQLAllocHandle
hoaerr:28500
Exiting hgolofns at 2012/02/27-17:11:31
Failed to load ODBC library symbol: /usr/lib64/psqlodbc.so(SQLAllocHandle)
Exiting hgolofn, rc=28500 at 2012/02/27-17:11:31
Exiting hgoinit, rc=28500 with error ptr FILE:hgoinit.c LINE:337 FUNCTION:hgoinit() ID:Loading ODBC aray of function ptrs
Entered hgoexit
HS Gateway: NULL connection context at exit
Exiting hgoexit, rc=0 with error ptr FILE:hgoexit.c LINE:108 FUNCTION:hgoexit() ID:Connection contextWhat's wrong with my configuration?
thanks for your help
regards,
Mathieu

HS_FDS_SHAREABLE_NAME needs to point to the ODBC driver manager. Commonly the ODBC driver manager is a separate library (common name is libodbc.so). It can be downloaded for example from unixodbc.org. Only a few rare ODBC drivers (some ODBC drivers from MySQL and also some IBM DB2 drivers have a built in ODBC driver manager into the ODBC driver itself, all other require a stand alone ODBC driver manager).
Background info:
In general the ODBC set up consists of 2 parts, an ODBC driver manager and an ODBC driver itself. The ODBC driver manager is providing generic ODBC functions and it is also responsible to load the driver specified in the odbc.ini file. The ODBC driver itself is then dedicated for a foreign database and provides specific foreign database functions.

How to create readonly backup

I have one Database, and I want to create one readonly backup so that If give that to someone they can just read the Data. Can we do this in sql server.
Regards Vikas Pathak

I have one Database, and I want to create one readonly backup so that If give that to someone they can just read the Data. Can we do this in sql server.
Regards Vikas Pathak
You cannot create readonly backup in SQL Server as a fact there is no concept of read only backup. If you give somebody your backup they can see data and can restore and modify it but that wont affect your original database unless you restore that backup on
prod server
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it
My Technet Wiki Article
MVP

How to create a dblink

HI,
Here there are two databases A and B.
The Database A is the one where I am working. I need to get a data from Database B by connecting thru DB link.
Database
A
Table1
DataBase
B
Table2
I had to get data from database (B) Table2 and insert it in database (A) table1.
For that do I need any priviliges to create DB link
Any example will really help me.
Thanks in advance

How to know whether my dblink is active or not
This is my TNS entry
hello =
(DESCRIPTION = (ADDRESS = (PROTOCOL=TCP)(HOST=hello.com)(PORT=1550))
(CONNECT_DATA = (SID = orcl))
create database link link1
connect to scott identified by tiger
using 'orcl';
when i am executing the below querry its errored out.
Error:TNS could not resolve the connect identifier specified.
I am connecting to client server thats different server. Do i need to have some privileges and any parametrs to set.
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How to create a DBlink from oracle database on unix to sqlserver

Hi
I need to create a database link from oracle database on solaris machine to sqlserver database.I found that the database link cannot be created from oracledatabase 10g to microsoft sqlserver.So i am planning to go for another windows server where i can pull this data from sqlserver to oracle 10g database on windows and then from windows to unix.
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HI
Thanks for your response.
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Steps to create readonly credential for BPEL console

Hi,
I would like to create read only user for BPEL, ESB, EM Console. Please share me steps to create the same. And also let me know how to disable the radio buttons for read only user, for example "Abort, Cancel, Delete, Migrate, Resume" buttons that are available under Instance tab in BPEL Console web page.
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Regards,
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Thanks a Lot Arik,
Sorry I forgot to mention the version of BPEL we are currently using. We are using 10.1.3.5 version as of now and we are not using weblogic server. So my doubt here whether i can follow same document for 10.1.3.5 version...? I mean the below url what you have provided will work for 10.1.3.5 version, because i can see it's for v11G.
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http://docs.oracle.com/cd/E21764_01/web.1111/e13710/realm_chap.htm
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Edited by: 933131 on Jul 9, 2012 5:25 AM

Trying to create Readonly Smartview user - HFM 9.3.1, SV 11.2.3

If I grant a test user in Native Directory (only) Application Administrator, they can then refresh Smartview enabled Excel spreadsheets.
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Any ideas?
Thanks, Mike

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I can't create form using dblink

I have created a dblink (public) pointing to a table in the remote database. Also I have created some reports using this dblink and it works fine. The problem is that when I create a form based on table or view using this dblink, I get the error "page not found".
Can anybody help me?
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We can't create form using dblink and synonim

We have created a dblink pointing to a table in the remote database.
When we create a form based on table or view using this dblink, we get the error "page not found".
We read from
Re: I can't create form using dblink
that we must create a synonim, and this was done creating one in the same schema of the db-link using the "Database Objects" of oracle portal 10g (external db is an oracle 9.0.2).
The new synonim work (tested with reports and pl/sql page)
but if we click on "Grant Access" (of the synonim) we get the following error :
Error: The underlying object of the synonym does not exist, is a remote object or is not of type function, procedure, package, sequence, synonym, table or view. (WWV-17076)
Does form work only with table and view of the portal database (not external one)? or have we loose something in the creation of the synonim?
Have someone succesfully created a form based on a db-link towards an external database?
Thanks to all.

Hei guys, has nobody created succesfully a data-driven forms based on a dblink towards an external database?
I can't believe this!!!!

How to create and Pass DBLINK name at the run time

Hi,
Please help me out ....
ACCEPT DB_USER PROMPT 'Enter the DB user name :'
like this i will get the DB_USER name and i want to create one dblink with that userbame at the runtime
and in all my .sql file i have to append that user name and dblink .. how to do this ....
for example ,
1.sql file contains a query like this
select *
from <user>.emp@<dblink>
where ename= 'KING'
ACCEPT DB_USER PROMPT 'Enter the DB user name :'
user enter : SCOTT
and the dblink should create a name like SCOTT_DBLINK
and it should make the select clause in the .sql file as
SELECT *
FROM SCOTT.EMP@SCOTT_DBLINK
WHERE ename = 'KING';

Hi,
Do you want to actually CREATE DATABASE LINK on the fly? - Don't there are all sorts of implications there.
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Regards
Peter

Can a dblink be created with select only privilege

I have created dblink from one instance to another instance.With dblink we can perform dml operations on a table.But i want to restrict insert,update,delete rights and grant only select.Is this possible

my problem is there is a user named ABC in mango instance with >insert,update,delete privs.
there is another user CDE in apple instance with insert,update,delete privs.
Now i have created a dblink on user ABC to CDE as a fixed user.So now user >ABC can do all insert,update,delete operations on user CDE tables.This I want to >restrict.I want user ABC to just view CDE tables instead of update,insert and >delete operations. Create a new user CDE1 and grant select only privilege on all tables of CDE.
create a dblink using CDE1 this will solve the issue?
Justin explains the same in his previous reply.
HTH

Creating Dblink

Dear Experts,
I am using given bellow Query to create remote Dblink
create public database link TEST
connect to home
identified by <pwd>
using 'dbhome.WORLD';
when i try to retrieve rows from a table exist in home user thats giving me error
ORA-12154: TNS:could not resolve the connect identifier specified
waiting

Hi,
you should check youre tnsnames.ora file where that connect string should be.
You wrote wrong name of db to which you ar trying to connect.
Maybe is not dbhome.WORLD but just dbhome.
Try tnsping dbhome.WORLD from command prompt on machine where is the database on which you are trying to create db link, and paste the output here if you wish.

Create dblink to a non-domain db

How can i create a dblink from a domain db to a non-domain db.
I keep getting the usual error:
ORA-02085: database link DISP.world connects to DISP
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then i can get DISP dblink to work but i mess up all the others.
I have no control over the non-domain db i am trying to connect to so i cannot add this to a domain. Is there any way to work around this.
My domain db is 8i while the other non-domain db is 9i
James.

What kind of objects are you creating over the dblink. If these are views or synonyms try the following:
1) Alter system set global_names=false;
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3) Create objects;
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How to create dblink to sqlserver in unix?

I have a oracle database(9i) running in unix server(AIX).
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Q:
How to create dblink to sqlserver in unix?
Thanks for your replys

Hi dear ,
I installed oracle db 10g R2 in Linux 4.
then installed the Oracle client in Win2k3 Server.
then made a odbc system dns for existing Sqlserver.
Now setting a Heterogeneous connection in that for that
my oracle service is orcl
ssql service is sqlserver
i started the listner
checked tnsping , it was successful,
then i created a link in oracle database
when i make select query for a table i get the following error,
can anyone give some idea why this error comes??
ERROR:
ORA-28545: error diagnosed by Net8 when connecting to an agent
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: preceding 2 lines from SQLSERVER
Thanks in Advance
Regards
Raja Kumar

Create readonly dblink

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