Is there any instructions on migrating databases, say Oracle to Db2.
Is it just creating the tables in DB2 then exporting table info from oracle and inserting them to DB2
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I agree with Vivin, but be aware that the changes required to the server configuration must be carefully reviewed and tested in order for the system to operate properly. You'll also need to change the JDBC driver.
Database administrators should be able to do this either manually or using tools/utilities.
Some of the tools/links that show up in a search on the topic are:
a) IBM® Database Conversion Workbench
b) Database Migration from Oracle to DB2 - IBM
c) Oracle to DB2 Conversion Guide: Compatibility Made Easy
d) Move data using the IBM DB2 Migration Toolkit
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I already have a database configured in atp. And the database version is 18c. I want to know the factors that I should consider before migrating data from 12c on-premise. Would also like to know how to do that? Is it doable using SQL developer? Do I need to take a back up before migrating data?
Going from Oracle on-prem to ATP is best done via expdp/impdp. see here
Oracle and SQL server have a database change notification feature that notifies table/row level changes in a database to registered clients. The feature is mostly used for synchronization of data with other data sources.
I've been looking for this feature in DB2 but so far, no luck. Does DB2 not provide this feature at all or am I missing something?
There is no such feature out of the box, not in the LUW version anyway (since you reference Oracle and MS SQL Server, I guess that's what you're interested in). You can easily roll your own using Q Replication event publishing, InfoSphere Change Data Capture, or plain old triggers and MQ functions.
The On-premises Database have tables and those tables columns types are UDTs, for this reason created same UDTs and tables using these UDTs on the cloud.
But when trying to syncing them its shows error not supporting UDTs, So am I missing something or is there any workaround to do syncing with UDTs?
Here if SQL Azure allows to create UDTs & also allows to create tables using those datatypes, then why not allow to sync?
FYI "SQL Azure" is called now "SQL Database" so if you find reference to Windows Azure "SQL Database" you can consider applied to your requirement as well.
SQL Database does not support user-defined data types, extended properties, Windows authentication, or the USE statement.
However the November 2010 update to SQL Server 2008 R2 includes support for SQL Database. The Generate Scripts Wizard now allows you to script for database version SQL Database so the scripts generated are directly compatible to be executed on SQL Database. The scripts thus generated are compatible with SQL Database and can be compiled on SQL Database without any further modifications. So your UDDT or custom data types can my transferred to SQL Database through this migration script.
If your Database is pre-SQL Server 2008, you can use the "Schema Migration with pre-SQL Server 2008 R2" section from this article.
unfortunately, there is no workaround at this time. The Data Sync Service is largely based on Sync Framework and it doesn't support UDT as well. The Data Sync Service supports spatial data types in the latest release though.
I need to migrate data (including tables, procedures, schema) from Sql Server 2005 to Oracle 10g. Can anyone suggest me a way to do it? Thanks.
Take a look at the Oracle Migration Workbench
SwisSQL have a commercial tool that will do that. It can go from and to several different database vendors. I've used it before to go from SQL Server to Oracle and it works well.
The best way to work around is by using ORACLE GATEWAY First create tables, views, stored procedures and triggers in ORACLE and then using ORACLE GATEWAY you can directly insert the data from SQLSERVER to ORACLE.
But you need to be cautious about data types. For migrating data from Image, TEXT you need to use *DBMS_Sql*
One of the possible options is to use SQL Developer. It is an Oracle free tool, which migrates both database objects and data. However, you need to have high level of knowledge in database migration, in particular experience of working with Oracle and SQL Server. Sometimes the results of automatic migration with SQL Developer require significant manual adjustments.
I have a SQL server database (Tables, Views, SP...). I need to convert this database to Oracle 10g. How can I do it?
Transferring the data will be easy; SQL Server integration services can do that, or Oracle's SQL Developer.
However, views and stored procedures are different between Oracle and SQL Server. SQL Server uses T-SQL, Oracle uses PL/SQL. These are not very compatible and I don't know a tool can automatically convert between the two. If your database relies on specific T-SQL features, you will need a developer to do the conversion.
Get the jTDS jdbc driver from sourceforge.
Add it to Oracle SQL Developer.
Tools > Migration > Migrate
Create a migration repository in your new Oracle database.
Create a new migration project.
Point it to your SQL Server database.
Convert it - mind the data types.
Migrate the data:
online row-by-row inserts over JDBC. Fine for SMALL/test boxes.
offline - use micrsosoft's unload utility to pull the sql server down to flat files. SQL Developer will create SQL*Loader scripts to put them over into Oracle.
If you have GoldenGate licensed, use that to move the data over and to synch changes from one system to the other in case you need to keep both up and going.
Start looking at the migrated T-SQL procs and functions. SQL Developer will leave comments for code blocks it wasn't able to translate...but you will need to TEST and VERIFY every single translation. Customers can see upwards to 80-90% translation rates for their T-SQL, but it could be as low as 50%...it just depends on the nature of your code.
The entire process is described here.
I wrote a white paper, with Sybase ASE as the example source platform, here. The process is identical for SQL Server. It has step-by-step guidance with screenshots.
If you have an Oracle account manager, reach out for help. We have specialists that deal exclusively with migrations such as yours. They have lots of practical advice and can recommend 3rd party partners if you lack the expertise.
sql developer can help. You can download it here , it is free. http://www.oracle.com/technology/software/products/sql/index.html
There is step by step documentation including videos on how to migrate SQL Server to Oracle DB. You find it here:
Migrating from Microsoft SQL Server to Oracle
Or you can use a tool to do the job for you like Ispirer - Migrate Microsoft SQL Server to Oracle
You basicaly setup an Oracle Server, once its ready you migrate your tables using a software made for that. I guess this script can do the job:
m2o