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.
Related
Is there a way in Oracle 11g to dump database to sql script, that when run will perform database, users, tables and data creation?
In Microsoft SQL Server there's SSMS Toolpack that is capable of such thing. (Script all data from SQL Server database) I'm interested whether the same is possible in Oracle 11g.
To extract metadata and data you should look at data pump, specifically the export and import tools. This will be the simplest, fastest and most supported way to move everything.
You will need to already have created the database, but I'm not sure if you're confusing that with the Oracle schema. Which you will also have to create in advance by creating the user(s) that will own all the objects. You can extract a script to create the user/schema, e.g. from Toad or SQL Developer, or using the DBMS_METADATA package.
Most client applications also have options to export pretty much everything as scripts. In SQL Developer, for example, go to the Tools menu and there's an 'Export database' option where you can choose what you want to include, which will be pretty much everything in your case. You'll still need to pre-create the new database to run those scripts against.
I have an oracle database that is very large in size.
I also have a sql server database. I want to integrate data from the oracle database to the sql server database and also the opposite way. This does not need to be real time but can work in the background possibly on defined intervals during the day.
What is the process for setting this up and how may it be achieved?
You should look into Microsoft SSIS:
http://en.wikipedia.org/wiki/SQL_Server_Integration_Services
One possibility is to use Oracle Golden Gate software. It does cost money but it supports real time data movement between many different database architectures, including the ones you specifically care about.
Creating DB links is the best option for this. With DB links the databases can talk to each other directly. No need for additional software or programming, this is standard functionality in Oracle and SQL Server and is very reliable.
I have users entering data in SharePoint (Running on SQL Server), but my application to view that data will be an Oracle Apex app running on Oracle, obviously. How do I have the data be pushed into the Oracle db automatically?
First off, are you sure that you need to replicate the data to Oracle? Oracle Heterogeneous Services allows you to create a database link in Oracle that connects to a non-Oracle database using ODBC (assuming you use the Transparent Gateway for ODBC which is free). Your APEX application could then query and report on data that is in SQL Server by issuing queries that run over the database link. Tim Hall has a good article (though it's a bit dated and some of the components have been renamed, the general approach is still the same) on configuring Heterogeneous Services.
If you do need to replicate the data, you can create materialized views in Oracle that query the objects in SQL Server using the database link you created with Heterogeneous Services and schedule those materialized views to refresh on a regular basis. The materialized views will need to do a complete refresh, though, which means that every row will need to be copied from SQL Server to Oracle every time there is a refresh. That generally limits the frequency with which you can realistically have refreshes happen. If you need the data to be replicated to the Oracle database and you need to send incremental changes so that the Oracle side doesn't lag too far behind, you can use Streams from a non-Oracle database to an Oracle database but that involves a lot more work.
In SQL Server you can setup linked servers that allow you to view data from other db's. You might see if Oracle has something similar, if not the same. Alternatively, you could use the sql's integration services to push the data over to an oracle table. Unfortunately I only know how to setup linked servers in SQL Server and I don't have a lot of experience with ssis to tell you how to do that, but those are the first two options I can think of that you might explore further.
Here's a link I found that might be helpful as well: http://www.dba-oracle.com/t_connecting_sql_server_oracle.htm
There's no way to do it "automatically" that I know of that will work across DBMS. ETL tools like Sql Server Integration Services might help but there's going to be a loading delay (as it will have to poll for changes). You could build some update triggers on the SharePoint database tables but that's going to turn into a support nightmare.
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
Are there any good database schema comparison tools out there that support Sybase SQL Anywhere version 10? I've seen a litany of them for SQL Server, a few for MySQL and Oracle, but nothing that supports SQL Anywhere correctly.
I tried using DB Solo, but it turned all my non-unique indexes into unique ones, and I didn't see any options to change that.
If you are willing to download SQL Anywhere Version 11, and Compare It!, check out the comparison technique shown here:
http://sqlanywhere.blogspot.com/2008/08/comparing-database-schemas.html
You don't have to upgrade your SQL Anywhere Version 10 database.
The new kid on the block is Qwerybuilder. It supports SQL Server, Sybase ASE, Sybase SQL Anywhere and Oracle. I've used it successfully with SQL Anywhere to track schema changes.
Two I've come across that support SQL Anywhere:
Upscene Database Workbench - http://www.upscene.com/products.dbw.sqlanywhere.php
Aquafold - http://www.aquafold.com/index-sybaseany.html
Each one appears has a schema comparison tool, however I have not used either to compare schemas.
SQLDelta is awesome. It is for SQL Server. I've used it with SQL 2000 and 2005. It will compare stored procedures, tables, views, permissions, indexes, etc. It can also compare data between tables I believe. You can sync the changes or generate SQL Scripts for later use. I use it often to script out db changes in development to production.
Ah...missed the Sybase remark. Not sure if SQLDelta can talk to it..but I'd probably give it a shot since Sybase is similar.
Try erwin (CA AllFusion ERwin Data Modeler). It supports quite a lot of different DBs, including SQL Anywhere, and is quite good in reverse/forward engineering and schema comparison. However, you may find it a bit too complex to use for the comparison...
I use SQL Data Compare from Red Gate along with SQL Compare the data compare allows you to Compare the contents of two databases and Automatically synchronize your data.
SQL compare allows you to do the same but with the database tables. Nice GUI on each and very easy setup. they also work on a remote database.
There not cheap but each has a 30 trail so you can get a feel if you like it or not.
Sybase PowerDesigner can also Compare or Merge your Database Schema.
It can also Load the Schema from various Databases by ODBC if you have Schema generation Scripts you can also load them into a Model.
Its an expensive tool but great to document and develop you schema changes IMHO.
Breck Carter's idea is a good one. For quick scans, I have an old product that is called DBDelta. I have it installed on an old Windows 2000 machine because the install I have will not work on an XP machine. It's a very small app that compares two SQL Anywhere databases across an ODBC connection.
I've done some searches to try and find a later copy, but have not been able to. The developer was Charles Butcher. I think he supported it for a while and then stopped back in 2002 or so.
I'll continue to look for a link. If I find something I will post it here.
QweryBuilder 5.5.0 will allow you to compare all procedures, functions, views, tables and triggers in one shot. This release is scheduled for mid May, 2010.
It hasn't been finalized yet but we are also looking at adding an option to turn the diff results into a script that can be executed on a target database.