Faster way to migrate data from SQL Server to Oracle 10g

We have to migrate data from SQL Server to Oracle 10 g.
One particular table on SQL Server has records around 1.25 millions.
We tried moving data using DTS package, but looks it will take hours with current speed of 300 records/minute.
This table has TEXT column, which has XML strings stored. I am not sure, if this is the reason for slow migration.
Would you please suggest better options to migrate it faster?
Thanks in advance !!!

Have you tried Migration work bench?

Similar Messages

Load Data from SQL Server to Oracle 10g using Sql*loader utility

I am trying to lod data from sql server 2005 to oracle 10g.
What is the best way to do it?
Can sql*loader utility do it?
what is the difference of using sql*loader utility and migration tool fom sql developer ?
Thanks
Edited by: user11313758 on Sep 30, 2009 4:30 PM

Hello:
You could consider using Oracle Heterogeneous Services to do this. If your Oracle database is on a Windows platform the link below shows you how to make a connection to SqlServer from an Oracle database.
http://www.databasejournal.com/features/oracle/article.php/3442661/Making-a-Connection-from-Oracle-to-SQL-Server.htm
Varad

Issues Migrating Data from SQL Server to Oracle

Good morning, I'm currently trying to migrate data from a SQL Server 7 Database to Oracle 11GR1.
I've followed the steps outlined in the guide that's on OTN and for the most part it worked well, the Data Model Capture, transformation and generation worked fine but when i try to do an online data migration the parallel DataMove threads stop working, i have no errors at all on the migration log they just don't pickup new tables to migrate data.
After looking at the last tables they tried to migrate i noticed that this happens when the table has a text, timestamp or image column on Sql Server which translate to CLOB, RAW[50] and BLOB columns on Oracle.
I'm i missing something here or just flat out doing something wrong with these datatypes?
Oh btw i'm using SQL Developer 2.1 December Edition plus the jtds 1.2.5 drivers for SQL Server.

As you don't have an error message it is difficult to diagnose. You could perform the offline data load for those failiing tables and continue to use the online method for all others.
Another option would be to log a service request and to provide some demo data to analyse the root cause.

Need help in migrating data from SQL Server to Oracle

Hi,
I've created a database link in my Oracle Database 11g Express Edition connecting to our SQL Server 2005 Enterprise Database. Now, I'm having issues on migrating some fields. Mostly Text field in SQL Server to CLOB in Oracle. I've created a PL/SQL Procedure to do this but somehow these columns don't get all the value.
For example:
In my sql server, I have a table SQLTBL with a field REMARKS of TEXT data type. It has the following value.
This is line 1.
This is line 2.
This is line 3.
Now I created a table ORCLTBL in oracle with field REMARKS of CLOB data type.
In my procedure I do something like.
begin
for i in ( select "remarks" rem from "dbo"."sqltbl"@sqldb )
loop
insert into orcltbl ( remarks ) values (i.rem);
end loop;
commit;
end;
/When I select the data from oracle it will only show "This is line 1" and disregard the values after the new line character.
Is there a way to make this work?
Thanks,
Allen

Allen Sandiego wrote:
Hi,
I've created a database link in my Oracle Database 11g Express Edition connecting to our SQL Server 2005 Enterprise Database. Now, I'm having issues on migrating some fields. Mostly Text field in SQL Server to CLOB in Oracle. I've created a PL/SQL Procedure to do this but somehow these columns don't get all the value.
For example:
In my sql server, I have a table SQLTBL with a field REMARKS of TEXT data type. It has the following value.
This is line 1.
This is line 2.
This is line 3.
Does the above mean, you have Three records or it is One record spanning in Three lines?
Now I created a table ORCLTBL in oracle with field REMARKS of CLOB data type.
In my procedure I do something like.
begin
for i in ( select "remarks" rem from "dbo"."sqltbl"@sqldb )
loop
insert into orcltbl ( remarks ) values (i.rem);
end loop;
commit;
end;
/When I select the data from oracle it will only show "This is line 1" and disregard the values after the new line character.
Probably, assuming that there is only One record, SQL server is sending the data as separate rows as opposed to a Single Row.
Can you provide the Output of below when executed from Oracle terminal? (I hope you understand the motive of query, and pardon my knowledge of SQL Server if the query below does not work :) )
select count("remarks"), "remarks" rem from "dbo"."sqltbl"@sqldb group by "remarks";

How can I migrate data from SQL Server 6,5 to Oracle 8?

We have a web site based on Microsoft SQL Server 6.5.Now we plan
to migrate the database to Oracle 8.
We have redesigned the tables structure and created tables under
Oracle 8, so we only need to migrate data from SQL Server.
We've exported data from SQL Server to text files.
How can we import data from files and restore to Oracle tables.
Is there a solution which let us to import data for particular
table columns,not all columns?
We'll be appreciated if somene can give suggestions.
Regards
Michael
null

Thank you for your reply.
I'll try the Oracle sqlloader utility first.
Regards
Micahel
Oracle Migration Workbench Team wrote:
: Michael,
: Oracle sqlloader is user for this sort of operation, see
: Oracle8i Utilities
: Release 8.1.5
: A67792-01
: available online through Oracle Technology Network.
: The Oracle Migration Workbench can be used to create bcp and
: sqlloader scripts, though since you have altered the schema
these
: scripts would need to be altered by hand after generation.
: Some thought has been put into redesigning table structures in
: the Oracle Migration Workbench, but currently it looks like
this
: reengineering will be left to be done by other tools, eg
Oracle
: Designer, once the SQLServer database has been duplicated with
as
: little change as possible onto Oracle.
: Hope that helps,
: Turloch
: Oracle Migration Workbench Team
: Michael (guest) wrote:
: : We have a web site based on Microsoft SQL Server 6.5.Now we
: plan
: : to migrate the database to Oracle 8.
: : We have redesigned the tables structure and created tables
: under
: : Oracle 8, so we only need to migrate data from SQL Server.
: : We've exported data from SQL Server to text files.
: : How can we import data from files and restore to Oracle
tables.
: : Is there a solution which let us to import data for
particular
: : table columns,not all columns?
: : We'll be appreciated if somene can give suggestions.
: : Regards
: : Michael
: Oracle Technology Network
: http://technet.oracle.com
null

How to extract incremental data from SQL server to oracle tables in ODI

HI All,
In my ODI sql server is install.My Source is in SQL server and my target is in Oracle.
I need to create a interface mapping where i need to extract incremental data from sql server to oracle.
There is a datetime(with Timestamp) field in sql server .I need to pull incremental data based on dateime.
Example = tablename.DateTime > (select '1-jan-11' from dual) .....i am using this query but its not woking.the error is Invalid object name"dual".
We are not going to use Incremental in IKM and LKM.
Request you to please provide any suggestion ASAP.
Thanks,
Lony

You can do that via Variable.
In the interface mapping create a filter on Tablename.DateTime
and put the condition like this
Tablename.DateTime BETWEEN #VAR and in the variable use this query in refreshing tab with oracle schema
SELECT max(start_time)||' AND '||max(END_TIME)+1 from audit_table where ETL_JOB_CODE = '20'In the package call the above variable in refresh mode and then interface.
This way you will pass from the query between and condition date and pass to interface so that SQL Server fetches the data between those too range.
Note:- You might need to tweak the date format so that SQL Server can understand.
Hope this helps.

How to import data from SQL server to Oracle?

Dear Sir/Madam,
I want to move database data from SQL Server to Oracle, but don't how to do it, will you please help me do it?

Oracle Migration Workbench is your best bet:
http://www.oracle.com/technology/tech/migration/workbench/index.html
Cheers, OTN

Transfering Data from SQL Server 2 Oracle

Hellow All,
Even the subject is not here, but i'm trying to transfere data from SQL Server to Oracle 8 (8.0.6) .. using the Wizard that ships with MS SQL Server. All Connections (ODBC or OLE DB) are alright, but still have problems in moving Data .. and Failure.
Failure in Data Movement and not in Table structures.
I have tried using most of the Valid and consistent ODBC and OLE Providers from Microsoft & From Oracle... but still have problems.
Even The Oracle Migration Assitiant from Access 97 dose not work properly.
Any commenets please ???
Regards
Tariq
null

Anil,
OMWB has an inbuilt collision manager, that will check for conflicting words and aptly replaces them with an alternative word.
OMWB also allows users to change these words once you finish performing capture. In this particular case, when you capture the view with the name 'rule', you can go to the oracle model in omwb and change the name to "rule1" or anything that is desirable, preferably those words that do not conflict with the oracle d/b's reserved words.
Regards,
Srinivas

Replicating data from SQL Server to Oracle

I like to know whether it is possible to Replicate data from SQL Server to Oracle and vice-versa.
My present application is using SQL server and very recently we migrated to Oracle. As the usage of SQL Server is more, I like to replicate the data being entered into SQL Server into Oracle also.

You can also use SQL Server replication right out of the box to replicate data to Oracle. In Enterprise Manager, configure an OLE-DB or ODBC subscriber with the Oracle credentials, and then just create a standard push subscription to the newly configured Oracle subscriber. Note that you need to click the advanced checkbox on the subscription wizard to see the heterogeneous datasource as a subscriber.
Good luck,
Matt Hollingsworth
Microsoft

Loading data from SQL server to Oracle database

i want to create one table in oracle db from table in sql server. Table is huge it got 97,456,789 records.
I created db link (HS) in oracle database which is pointing to sql server. i can select that table from oracle thru db link.
select * from "dbo"."t1@dblink;
i fired below create table.
create table t2 nologging parallel (degree=3) as select * from "dbo"."t1@dblink;
and its taking long time.... but its running...
is there any alternate method to do this and and populate table in oracle db faster.
Please advise. thanks.

vhiware wrote:
create table t2 nologging parallel (degree=3) as select * from "dbo"."t1@dblink;
and its taking long time.... but its running...I doubt that parallel processing will be used as this is unique to Oracle (using rowid ranges typically) and not SQL-Server.
is there any alternate method to do this and and populate table in oracle db faster.Part of the performance overhead is pulling that data from SQL-Server to Oracle across the network link between them. This can be sped up by compressing the data first - and then transferring that across the network.
For example: using +bcp+ to export the data on the SQL-Server box to a CSV file, compress/zip the file, scp/sftp the file to Oracle, and then unzipping it there. Parallel and direct load processing can now be done using SQL*Loader to load the CSV into Oracle.
If this is a Linux/Unix base system, then the unzip/decompress process can be run in parallel with the SQL*Loader process by creating a pipe between the two - where the unzip process writes uncompressed data into the pipe and SQL*Loader reads and loads data as it becomes available via the pipe.
Alternatively, you can do you own PQ processing. Let's say the data is date ranged. You can create a procedure on Oracle that looks something like this:
{code}
create or replace procedure CopyDay( day date ) is
begin
insert /*+ append */ into local_tab select * from remote_tab@remotedb where col_day = day;
-- add logging info, commit, etc.
end;
{code}
You can now start 10 or more of these for different days and run it in the background using DBMS_JOB.

Show data from sql server to oracle db

Hi,
I am using oracle 10g R1 on windows 2003 platform. On one machine database 10gR1 is running and on other machine sql server is running. I want to retrieve some data from sql server to oracle database. Please tell me how I can show data from sql server to oracle db.
Thanks

To make heterogeneous connection with oracle:
1.First make an ODBC connection, make entry in System DSN(to create a data source)
2.Make an entry in tnsnames.ora
3.Make an entry in listener.ora under SID_LIST_LISTENER
4.Make an entry in file named init<HS>.ora file located "oracle_base\oracle_home\db\hs\admin"
5.Restart the listener
e.g:
1. create a odbc system dsn named like 'sqlserver'
2. sqlserver= (DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp) (HOST=xx.xx.xx.xx) (PORT=1521))
(CONNECT_DATA = (SERVICE_NAME=sqlserver))
(HS = OK)
3. (SID_DESC = (SID_NAME = sqlserver) (ORACLE_HOME = oracle_base\oracle_home\db) (PROGRAM = hsodbc) )
4.Create a file named initsqlserver.ora and make the following entry:
HS_FDS_CONNECT_INFO = sqlserver
Alternatively, you can copy the file named inithsodbc.ora and rename it to initsqlserver.ora
and edit as HS_FDS_CONNECT_INFO = sqlserver
5. lsnrctl reload listener_name
regards
adnan kaysar

Reg. Migrating data from SQL Server 2000 to Oracle

Hi All,
I need to migrate a same data from SQL Server 2000 to Oracle 9i.In sql server Export option is there, but the problem is some 30 tables have More than one LONG datatype column in a table. That's why oracle not allow to import.
Could you guys find any tool for the same.
Please do the needful.
Thanks & Regards,
Prathap

hi dermot,
it's very urgent now. Can you please give any solution for this.
and also i tried the SQL developer tool. But i got an below error,
Error starting at line 2 in command:
CREATE USER dbo_testdatalatest IDENTIFIED BY dbo_testdatalatest DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP
Error at Command Line:2 Column:45
Error report:
SQL Error: ORA-01031: insufficient privileges
01031. 00000 - "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if
attempting to install a database without the necessary operating
system privileges.
When Trusted Oracle is configure in DBMS MAC, this error may occur
if the user was granted the necessary privilege at a higher label
than the current login.
*Action:   Ask the database administrator to perform the operation or grant
the required privileges.
For Trusted Oracle users getting this error although granted the
the appropriate privilege at a higher label, ask the database
administrator to regrant the privilege at the appropriate label.
Error starting at line 3 in command:
GRANT CREATE SESSION, RESOURCE, CREATE VIEW TO dbo_testdatalatest
Error report:
SQL Error: ORA-01031: insufficient privileges
01031. 00000 - "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if
attempting to install a database without the necessary operating
system privileges.
When Trusted Oracle is configure in DBMS MAC, this error may occur
if the user was granted the necessary privilege at a higher label
than the current login.
*Action:   Ask the database administrator to perform the operation or grant
the required privileges.
For Trusted Oracle users getting this error although granted the
the appropriate privilege at a higher label, ask the database
administrator to regrant the privilege at the appropriate label.
Error starting at line 4 in command:
CREATE USER epm_testdatalatest IDENTIFIED BY epm_testdatalatest DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP
Error at Command Line:4 Column:45
Error report:
SQL Error: ORA-01031: insufficient privileges
01031. 00000 - "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if
attempting to install a database without the necessary operating
system privileges.
When Trusted Oracle is configure in DBMS MAC, this error may occur
if the user was granted the necessary privilege at a higher label
than the current login.
*Action:   Ask the database administrator to perform the operation or grant
the required privileges.
For Trusted Oracle users getting this error although granted the
the appropriate privilege at a higher label, ask the database
administrator to regrant the privilege at the appropriate label.
Error starting at line 5 in command:
GRANT CREATE SESSION, RESOURCE, CREATE VIEW TO epm_testdatalatest
Error report:
SQL Error: ORA-01031: insufficient privileges
01031. 00000 - "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if
attempting to install a database without the necessary operating
system privileges.
When Trusted Oracle is configure in DBMS MAC, this error may occur
if the user was granted the necessary privilege at a higher label
than the current login.
*Action:   Ask the database administrator to perform the operation or grant
the required privileges.
For Trusted Oracle users getting this error although granted the
the appropriate privilege at a higher label, ask the database
administrator to regrant the privilege at the appropriate label.
Error starting at line 6 in command:
CREATE USER lportal_testdatalatest IDENTIFIED BY lportal_testdatalatest DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP
Error at Command Line:6 Column:49
Error report:
SQL Error: ORA-01031: insufficient privileges
01031. 00000 - "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if
attempting to install a database without the necessary operating
system privileges.
When Trusted Oracle is configure in DBMS MAC, this error may occur
if the user was granted the necessary privilege at a higher label
than the current login.
*Action:   Ask the database administrator to perform the operation or grant
the required privileges.
For Trusted Oracle users getting this error although granted the
the appropriate privilege at a higher label, ask the database
administrator to regrant the privilege at the appropriate label.
Error starting at line 7 in command:
GRANT CREATE SESSION, RESOURCE, CREATE VIEW TO lportal_testdatalatest
Error report:
SQL Error: ORA-01031: insufficient privileges
01031. 00000 - "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if
attempting to install a database without the necessary operating
system privileges.
When Trusted Oracle is configure in DBMS MAC, this error may occur
if the user was granted the necessary privilege at a higher label
than the current login.
*Action:   Ask the database administrator to perform the operation or grant
the required privileges.
For Trusted Oracle users getting this error although granted the
the appropriate privilege at a higher label, ask the database
administrator to regrant the privilege at the appropriate label.
Error starting at line 8 in command:
connect dbo_testdatalatest/dbo_testdatalatest;
Error report:
Connection Failed
Commit
Regards,
Prathap.R

Using Oracle Forms Importing Data From SQL Server into Oracle Tables.

Dear All,
We are using Oracle Forms 10g in windows XP and having OAS 10g and Oracle database 9i.
How can we import data from SQL Server 2005 into Oracle tables using Oracle Forms?
Thanks & Regards
Eidy

I have no idea what "Oracle Hetrogenius Services" is, so I can't help you with that, sorry.
SQL Developer might also assist you. SQL Developer can connect to SQL Server as well as Oracle and has some tools for migration. See the documentation for details:
http://download.oracle.com/docs/cd/E12151_01/doc.150/e12156/toc.htm
For additional help on using SQL Developer for this task, please consult Support or the SQL Developer forum: SQL Developer
Hope this helps,
Jacob

Import data from SQL Server to Oracle

I have created a dblink in oracle to access the SQL database. I am able to run queries through the dblink and it works fine. I have created a test table on Oracle Server to import the data. The field named "description" has CLOB data type. The corresponding datatype on SQL Server is varchar(7000).
When I insert the data from SQL Server, it completes successfully without any error but it truncates the data on CLOB field.
If I run the select query in SQLPlus I can see the entire description.
Select "description" from sql_view@dblink;
-- the above works fine.
CREATE table test
(description CLOB);
INSERT INTO TEST
Select "description" from sql_view@dblink;
-- this works but it truncates the data after 256 characters
My question is, how to get the data from SQL Server without truncating characters.
Thanks in advance,
Gopal

I hear the same from other friend that sql server truncated the leading zeros from the id column.
I really don't have a solution for this but you can try the work around. Export the data to flat file and upload in oracle using SQL loader, as this would be much faster and efficient.

How to merge data from SQL server to Oracle Database

Dear Expert,
I am having problem with SQL server with Oracle.
Problem: I want to merge table records from SQL server to Oracle Table. Which License free tool I can use to achive the goals.
If I able to make a free DB link from Oracle to SQL server , then we can select table and will be able to update.
Right now I have made a DB link from SQL server to Oracle, Using that I can see the records from oracle database but I can't update them.
Thanks,
Sher

Hi,
What about using Oracle SQL Developer for migration
http://www.oracle.com/technetwork/database/migration/sqlserver-095136.html
HTH

Faster way to migrate data from SQL Server to Oracle 10g

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