Whether it's possible to create cube using SSAS by establishing connection with Oracle DW?
Whish is the best tool to use SSAS/Oracle OLAP?
What are the requirements?
How to install the tool?
PS: I have very limited knowledge on data cubes
SSAS uses a relational database as its data source. According to Microsoft, that relational database can be an Oracle database by using the Oracle OLE DB Provider.
You would need a SQL Server license to build SSAS cubes.
I have built cubes using Oracle OLAP (using Oracle relational database) and SSAS (using SQL Server) but have not personally tried using Oracle as the data source to SSAS. These days, you are better off with SSAS.
Related
I have created linked server in MSSQL.
Next i will try to create a cube in SSAS,
when i create Data Source View in SSAS that MSSQL not showing linked server name.
Is it possible to access linked server tables from SSAS?
Why do you need a linked server? Are the tables for your cube in different databases on different servers? If they are, have you tried creating a view in your primary server that uses the linked servers, then have these views in your SSAS Cube DSV?
Also, do look into data warehousing, it will probably be faster to process if you gather all the data you want in the cube into a single database first. If you have large databases this may be essential.
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.
Does anyone know if Data Quality Services in Sql Server 2012 can be used against Oracle databases to improve their quality? I've had a look around the Sql Server site and can't determine if it can or not.
Thanks,
Steve.
There are two ways to use Data Quality Services over Oracle DBs.
Via the DQS SSIS cleansing component - you can use this as part of an SSIS flow that retrieves the data from the Oracle DB, cleans it within the SSIS flow using the DQS component, and then sends it back to the Oracle DB.
Via the use of the Linked Server functionality of SQL Server. See http://social.technet.microsoft.com/wiki/contents/articles/7540.accessing-your-data-on-remote-servers-for-dqs-operations-by-linking-servers.aspx for more information on how to do this.
This fairly unusual, but because of office politics etc. we have (read-only) access to the data warehouse, but not to the live data. However we need up-to-date data to populate our relational (OLTP) database (MS SQL server. The data in the warehouse (also MS) is in star schema format (i.e. Dimensions and Facts). I am not very familiar with warehouse DBs. How can I get data from the warehouse into a relational database? My google-fu was too weak to get me any answers (lots for the other way round).
Thanks
Chavoux
If there is a data-warehouse, then the ETL process is already in place. So, use the same tool (SSIS ?) that loads the DW to extract data from the DW and move it to a different DB. You can probably ask your ETL guy to help too :).
SSIS packages? Anything that can load and transform data.
Sounds like the data warehouse is a SQL Server database so standard SQL can be used. You can use SSIS to transform the data from the DW and load it to the OLTP database.
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