Is there any patch for migrating database server from oracle to sql server

we have very large application build using oracle forms 6i
(release 2) & reports 6i & Oracle Database as back-end server.
Now we want to port our application on sql server. Is there any
patch available , so that we don't have to change anything at
application level except connection string.
currently I am using :
oca 6.0.5.35.0
sql server 2000
odbc 3.5xxx
d2k 6i(release 2)
But we have to make lot of changes at application level.
So any one can tell me about any tool, or patch for converting
without changing too much at application level.
Thanks
yogesh

refresh

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Hi
I need to create a database link from oracle to sql server 2000.

Assuming your Oracle database is running on Windows, you can set up a database link using ODBC using Heterogeneous Services and Generic Connectivity, but there are some functional limitations (i.e. no two-phase commits). If you can live with those limitations but aren't on Windows, you can generally purchase an ODBC driver for your operating system that will connect to SQL Server through someone like DataDirect and still use Generic Connectivity. If you cannot live with those limitations, you can purchase one of Oracle's Transparent Gateway products (though this can get somewhat pricey).
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I am trying to create a database link from Oracle to SQL Server, and the documentation is about as clear as mud to me. Can anyone send me clear instructions on exactly what I need to do? What needs to be in tnsnames.ora and listener.ora files? Is there anything other than those two files that needs to be set up? Do I set up an ODBC connection? Anything else? I want to execute queries against a SQL Server database and load data into Oracle database.
Thanks so much,
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These are the instructions from an old document I created. The steps are same for SQL Server and Sybase. Hope it helps.
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We have installed the gateway software in one of oracle database
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eg: HS_FDS_CONNECT_INFO=USTRUD01.uwd
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5.     Create a database link to the Sybase database in the oracle database.
The steps for creating the database link are
a. create a login oracle_tgw in the sybase server
b. add the user to the sybase database with the necessary privilege on the tables
c. create the database link in the required oracle database using the command
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How to create database link from oracle to sql server

Please help with how to create database link from oracle to sql server
Best regards,
Vishal

Please help with how to create database link from oracle to sql server
Best regards,
Vishal
Hi Vishal,
I found a lof of information regarding how to create a database link from Oracle to SQL Server, please see:
https://www.google.co.in/?gws_rd=cr&ei=vd3XUvGFO8TgkAXqlYCADg#q=how+to+create+database+link+from+oracle+to+sql+server
We discuss SQL Server related issue in this forum. If you have any more question regarding Oracle, please post it in Oracle communities forum for better support.
Regards,
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Hello Everyone,
Here i have Oracle Database 9i and SQL Server 2005 databases.
I have some tables in sql server db and i want to access from Oracle.
How to create a database link between these two servers
Thanks,

Thanks for Everyone,
I was struggle with this almost 10 days....
I created Database link from Oracle to SQL Server
Now it is fine.........
Here i am giving my servers configuration and proceedure how i created the db link...@
Using Generic Connectivity (HSODBC) we can create db link between Oracle and SQL server.
Machine (1)
DB Version : Oracle 9.2.0.7.0
Operating System : HP-UX Itanuim 64 11.23
IP : 192.168.0.31
Host : abcdbt
Machine (2)
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Operating System : Windows server 2003 x86
IP : 192.168.0.175
Host : SQLDEV1
User/PW : sa/abc@123! (Connect to database)
Database : SQLTEST (exsisting)
Table : T (“ T “ is the table existing in SQLTEST database with 10 rows)
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a)     Oracle 10g software
b)     User account to access SQL Server database (sa/abc@123!)
c)     Existing SQL Server Database (SQLTEST)
d) Tables (testing purpose) (T)
Steps:
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Control panel >> Administrative Tools >> Data Source (ODBC) >> System DSN ADD
You can follow this link also.....
http://www.databasejournal.com/features/oracle/article.php/3442661/Making-a-Connection-from-Oracle-to-SQL-Server.htm
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Host : 192.168.0.175 (machine 2)
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You can create DSN with different name also (not same as db name also)
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Copy inithsodbc to initSQLTEST
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(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = G:\oracle 10g\oracle\product\10.2.0\db_1)
(PROGRAM = extproc) )
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SQLTEST11 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.175)(PORT = 1525))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SQLTEST))
(HS=OK)
:> tnsping SQLTEST11
If No errors then conti….
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Cd $TNS_ADMIN ($ORACLE_HOME/network/admin)
Create a file
$ vi TEST_abcdbt_ifile.ora
something=
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST =192.168.0.175) (PORT=1525))
(CONNECT_DATA=
(SID=SQLTEST))
(HS=OK)
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$ sqlplus system/manager
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Thanks,
Edited by: ram5424 on Feb 10, 2010 7:24 PM

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Message was edited by:
user628031
Message was edited by:
user628031

Take a look at DUMP_CSV function by Tom Kyte.

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dear all,
i m a newbie to oracle and i need your help to know how to create a database link between oracle and sql server.my oracle version 10.2.0.3 and platform is redhat linux 5.7.your help appreciated.
thanks in advance.

[oracle@localhost ~]$ rpm -qa | grep -i odbc
php-odbc-4.3.9-3.15
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unixODBC-2.2.11-1.RHEL4.1
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Hello,
I am getting following error while converting schema from oracle to SQL server using SSMA.
I get Errors 1-3 while migrating procedures and error 4 while migrating a table.
1- O2SS0050: Conversion of identifier 'SYSDATE' is not supported.
2- O2SS0050: Conversion of identifier 'to_date(VARCHAR2, CHAR)' is not supported.
3- O2SS0050: Conversion of identifier 'regexp_replace(VARCHAR2, CHAR)' is not supported.
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Please suggest.
Thanks.

The exact statement in oracle side which causing this error (O2SS0050:
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Statement causing error O2SS0050:
Conversion of identifier 'regexp_replace(VARCHAR2, CHAR)' is not supported is below.
nCount2:= length(regexp_replace(sDataRow,'[^,]'));
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CHAR) and regexp_replace(VARCHAR2, CHAR) in as such. 'MON-YYYY' and '[^,]'
are CHAR values hence SSMA is unable to convert it from varchar2 to char.
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Hi
I am now tring to connect from oracle to sql server using database link.
Created database link
but when connecting to remote db getting the floowing error
select * from region@mysqlserverdsn
ERROR at line 1:
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 MYSQLSERVERDSN
Can anyone help
My Listener File
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc1)
(SID_DESC =
(GLOBAL_DBNAME = ORCL.DOMAIN.COM)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(SID_NAME = orcl)
(SID_DESC =
(GLOBAL_DBNAME = NORTHWIND.DOMAIN.COM)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(SID_NAME = MYSQLSERVERDSN)
(PROGRAM=hsodbc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST=
(ADDRESS = (PROTOCOL = TCP)(HOST = SALIHKM.DOMAIN.COM)(PORT = 1522))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
My Tnsnames Entry
MYSQLSERVERDSN =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=xxx.xxx.xxx.xxx)(PORT=1522))
(CONNECT_DATA=(SID=MYSQLSERVERDSN))
(HS=OK)
Lsnrctl is working fine.
c:\>lsnrctl start
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 18-MAY-2006 18:53
:13
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting tnslsnr: please wait...
TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production
System parameter file is D:\oracle\product\10.2.0\db_1\network\admin\listener.or
a
Log messages written to D:\oracle\product\10.2.0\db_1\network\log\listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=SALIHKM.DOMAIN.COM)(POR
T=1522)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROCipc)
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=SALIHKM.DOMAIN.COM)(POR
T=1522)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Produ
ction
Start Date 18-MAY-2006 18:53:16
Uptime 0 days 0 hr. 0 min. 3 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\product\10.2.0\db_1\network\admin\listener.o
ra
Listener Log File D:\oracle\product\10.2.0\db_1\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=SALIHKM.DOMAIN.COM)(PORT=1522)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROCipc)))
Services Summary...
Service "NORTHWIND.DOMAIN.COM" has 1 instance(s).
Instance "MYSQLSERVERDSN", status UNKNOWN, has 1 handler(s) for this service..
Service "ORCL.DOMAIN.COM" has 1 instance(s).
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
But Tnsping show no listener
C:\>tnsping MYSQLSERVERDSN
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 18-MAY-2
006 18:56:27
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
D:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp)(HOST=xxx.xxx.xxx.xxx)(P
ORT=1522)) (CONNECT_DATA=(SID=MYSQLSERVERDSN)) (HS=OK))
TNS-12541: TNS:no listener
Services
C:\>lsnrctl services
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 18-MAY-2006 19:00
:04
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=SALIHKM.DOMAIN.COM)(POR
T=1522)))
Services Summary...
Service "NORTHWIND.DOMAIN.COM" has 1 instance(s).
Instance "MYSQLSERVERDSN", status UNKNOWN, has 1 handler(s) for this service..
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "ORCL.DOMAIN.COM" has 1 instance(s).
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "orcl" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1 refused:0 state:ready
LOCAL SERVER
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: SALIHKM, pid: 2080>
(ADDRESS=(PROTOCOL=tcp)(HOST=SALIHKM.DOMAIN.COM)(PORT=1070))
Service "orcl_XPT" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1 refused:0 state:ready
LOCAL SERVER
The command completed successfully
I am very much confused with this situation.
Thanks & Regards
Salih Km

Hi ,
Thanks for your reply.
Contents of my initMYSQLSERVERDSN.ora file is
# This is a sample agent init file that contains the HS parameters that are
# needed for an ODBC Agent.
# HS init parameters
HS_FDS_CONNECT_INFO = MYSQLSERVERDSN
HS_FDS_TRACE_LEVEL = 0
HS_FDS_TRACE_FILE_NAME = hsmsql.trc
# Environment variables required for the non-Oracle system
#set <envvar>=<value>
set ODBCINI=c:\WINDOWS\ODBC.INI
SALIHKM.DOMAIN.COM is my system in which Oracle Test DB is Installed.
SQL Server is in another location.
In Tnsnames i specified ip address.
One more doubt.
I am using 10g Release 2 demo version.
whether it will support Hetrogeneous Services?
How to know whether a database supports HS or not?
Thanks & Regards
Salih Km

Is there any patch for migrating database server from oracle to sql server

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