Migrating data from one databaes to oracle?

is there any way to migrate my data from my old/previous database to oracle db.
ie. migrating data from one databaes to another.

If you are using Oracle 9i, look at external tables. Otherwise, dumping your data to text files and using SQL*Loader to load it into Oracle tables is a good option. There are various tools and utilities you might look into, including ODBC and migration toolkit. I prefer the SQL*Loader method for DBase, FoxPro, and Access.

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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?

How to migrate data from MS Access to Oracle???????

how to migrate data from MS Access to Oracle???????

You can use heterogeneous services (HS) connection to MS-Access from Oracle and still use the same PL/SQL (or even a single CTAS statement) or SQL to load directly to Oracle tables. It's transparent, quick and clean as opposed to writing complex control files.
You might have to set the ODBC connection to your Access database and add the details to Oracle listener.
Please let me know if you are not sure how to set up the connection.

Migrate data from one table to another

Hi,
I need to move data from work space -1 to work space -2. I need to move only selected data. From work space -1 to work space -2
Work space -1
Table -1_
ID NAME Description
1 xyz one
2 abc two
3 mnk three
Table -2_
ID PID NAME Description
1 1 x1 -
2 1 x2 -
3 2 a1 -
4 2 a2 -
5 3 m1 -
Table -1 is parent table and Table-2 is child. Here PID is parent key of table-1 and ID's in both the table are primary keys.
Now i need to move data from work space-1 to work space -2
Work Space -2 table structure
Table - 1
ID INDUSTRY_TYPE DATE DESC
1 TNT - -
2 MTN - -
Table - 2
ID T_ID NAME DATE DESC
1 1 T1 - -
1 1 T2 - -
2 2 E1 - -
2 2 E3 - -
I need to migrate data from work space -1 of table 1 and 2 to work space - 2 of table 1 and tabe 2
Please suggest me a query to migrate. Please let me know if the steps mentioned above is not clear.
Thanks
Sudhir

Using INSERT statement.
insert into <target table>(<column list>)
select <column list>
from <source table>

Migration data from SAP DB2 to Oracle 10g

Hi , I am assigned to migrate data from SAP system which is using DB2 to Oracle 10g.I not very familiar with SAP. I hope someone can help me., especially for those familiar in SAP.
Please help me.
thanks
jebatco

Hello,
just migrating a DB2 database to Oracle 10g might be an easy task. The Oracle Migration Workbench is the tool for such a migration:
http://www.oracle.com/technology/tech/migration/workbench/index.html
I have no idea about SAP, and that might complicate the picture. But there exist specialists for this task:
Oracle Expertise in the SAP environment
The Solution Center SAP Support and Service – located in Walldorf – offers SAP
customers the following services:
• Advanced Customer Services (ACS)
• Performance Analysis and Tuning
• Development of concepts for Backup/Restore/Recovery, and High Availability,
Administration
• Security concepts
• Optimizing of ABAP/4 programs (performance improvement)
• Migration service for customers, who want to use Oracle as the database for SAP
applications (from Informix, MaxDB, DB2, or SQL Server to Oracle).
• Migration services from “Oracle to Oracle” (e.g. Tru64 to HP_UX)
• Integration-Products and –Services
• Oracle Database: The Database of Choice for Deploying SAP Solutions
This is taken from http://www.oracle.com/newsletters/sap/docs/ora4sap-db-of-choice.090213.pdf
Best regards
Wolfgang

What methods are available to migrate Data from MS SQL to Oracle DB 11g.

Hi,
Need to know the No of ways/ Techniques via we can Migrate data from MS SQL Server to Oracle DB 11g.
Thanks ,
NL

hi,
i came across this link in oracle demos :
http://st-curriculum.oracle.com/obe/db/hol08/sqldev_migration/mssqlserver/migrate_microsoft_sqlserver_otn.htm
the migration process using sql developer
br,
mrak

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.

Improving performance on migrating data from one Oracle database to another

We are using hibernate to migrate complete tables from one database to the other. This takes hours to days to transfer a couple of tables, all having relationships between each other. The only difference is that the new tables have an extra column which stores the primary key of the source table as an alias key in the destination table and the destination table has only one extra column which is its own primary key. Another small difference is that the name of the columns is a little different.
Isn't there a simple way to use Oracle database's in built tools to migrate data if provided the source and destination tables and column names for mapping purposes? Please provide some suggestions for this Oracle newbie. Any other suggestions on improving the migration performance will be greatly appreciated.
Suggestions please!!!

Hello Justin,
Thanks for your prompt reply. Ours is a small company so we take up all kinda roles. In this particular scenario, I was asked to migrate all the tables from one database to another. Both of the databases are present on two different machines but on the same network. There are about 100,000 records in some of the tables and there are about 50 tables to migrate. As I said, both the tables have different columns to be mapped and then transferred and the new table has only one extra column which is a primary key in the new table. Under these constraints, Hibernate is taking way too much time.
I always felt that there must be a simpler and efficient way to do this. I would appreciate if you could you explain me the procedures in detail please.
Thanks in advance.

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";

Migrate Data from one SAN to other in AlwaysON configuration with no/minimal downtime

Team,
There is a requirement to move the current DBs from existing SAN to new IBM SAN disks. I have outlined the below steps. Request you to please add your inputs/challenges/risks.
This is in Always ON and We have 3 Nodes.
Server A , Server B and Server C
A and B are Synchronous
C is hosting Async replica.
Note: The SQL binaries are installed on E: drive which is a SAN drive. Whether is this going to be impacted based on my steps below?
Present the new SAN of same size on all the nodes in the Availability Cluster.
Break the secondary replica. On Secondary replica, Migrate the data by physically moving the DB files from old SAN to new SAN.
Rename the new SANs back to the original filenames as it was present earlier. Bring up the services and join to Availability Group. Check whether the DBs are Synchronized with Primary.
Now, Failover the Primary to Secondary replica- This will be a short outage.
Follow the same steps on Primary as mentioned in Steps 1-3.
Check the Synchronization of the DBs and perform all the sanity checks.
Thanks!
Sharath
Best Regards, Sharath

Hi Sharath,
This can be easily achieved by storage migration by storage Vendor, In your case IBM should be able to do it, since they have sophisticated tools
(one of these tools is Storage Virtualization for Data Migration and Consolidation) to this SAN migration they don't need downtime during the storage sync process. your downtime will be only the Cutoff Time, If SAN Vendor does the Data Migration for you. <o:p></o:p>
Otherwise,
1. Take out read-only replica out of Always on Group.
2. Since SQL is also installed on SAN drive, I strongly suggest you to rebuild the SQL Server as new. (No Copy of Data from SAN to SAN)
Note: Drive allocation and drive letters should be identical
3. Once you rebuild the SQL Server, One Challenge here is to migrate the SQL Logins (You must migrate users using same SID, to avoid permission issues).
4. then Add it Always on Group, and wait for the databases to sync.
5.
Then manually move the always on group read/write replica to new node.
6. follow the steps 1 ,2,3 and 4 in sequence.
Hope this will help you.

Migrating data from SAP BW to Oracle

We have a requirement where the exisiting data from SAP BW needs to be migrated into Oracle. What are some of the major differences that we should keep in mind when migrating this data. Our first task is to generate the data model in Oracle. Can we use a tool such as SQL Data Modeler or ERwin to derive the logical model from SAP and use it to build the physical model in Oracle? Would this be possible? Can you share your experiences in building data models for data migration?

This is a very specialized area you are looking at. My recommendation is that you look at SAP sites on Oracle.com for assistance. There is also a SAP Migration white paper you can read and the Oracle/SAP site.
Regards
Sue

Migrating Data from one BW system to another

Hi Friends,
I have a task where i need to replicate/migrate objects under specific InfoArea/s from one BW system to another BW system. Please suggest me the ways this can be done. Thanks in advance for all the help.
Raj

Hi
to transfer the data is easy, use flat files or you can export the DS in the source sys and then load it in the target sys (the easiest way).
to transfer structores look at these:
Re: Transporting Queries
I hope it helps.
Edan

Migrating data from one screen to another though Table Control

Hi Sapgurus,
I am woking n the scenerio where i have two screen 100 and 200 now in 100 screen i have a Table Control, now i want that when i click on the row of this table control the selected row data should be migrated to another screen.
I have already check the "Respond to Double click property". But i dont know how to move further.
Please Help.

Hi,
In the user command Module,
check at sy-ucomm
if double click....call screen 200
and then u must be having the data in the internal table, fetch the data from the table.
Regards,
Sonika

HT4889 Migrating data from one Mac to another using Migration Assistant

Hi,
I just migrated my data from my old Macbook to my new Macbook Pro. All of the data migrated as my old user, so now i have 2 users on my computer under my name.
I am wondering how I can transfer the data from my old user (on my new computer after migration) to my new user on the new computer. Any thoughts?

Rachelmischel,
I wouldn't use migration assistant. I recently had to move all of my files from a 2008 macbook to a 2013 macbook air. It took me three days to try multiple attempts with migration assistant. What I did was create a drop box account with my macbook (my macbook air already had drop box installed) and then move files from my macbook into my drop box folder. Once that was completed, I would manually copy my files onto my macbook air. The catch is that you need to be sure your computer sharing is enabled and that you make sure your older macintosh will allow permission to your new macintosh to see its drop box files. Hope that helps!
-Freecalls4j-

How to migrate data from one database to another for a specific time frame

Hi
This is the scenario:
We have 2 databases:
PTT : THis has data from march 11 to March 19 that was created when the production was down due to a crash
PROD : THis was recovered after March 19. Hence has no data created between March 11 and March 19
How do I transfer this data from March 11 to March 19 from PTT to PROD so that Production can be up to date asap.
Please let meknow the methods to get this done
Regards
Gayathri

Hi,
You could use EXP/IMP to move the data from PTT to PROD. But, you should be careful with sequences, modification to the same data.....
eg Customer Address was updated between Mar 11 - 19, again the same customers was updated after 19 Mar, under this situation if you load the data from PTT you would be wrongly updating the data.....
You have to study well and apply changes...........

Migrating data from one databaes to oracle?

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