I'm planning to play around with Oracle Business Intelligence (for fun). I have access to a number of Oracle products, and may have gone overboard installing them all (quite possibly more than I need).
Problem is I'm not too sure how all the different Oracle components fit together, but I think I am still missing something, a crucial part - DBCA.
All the online help material I can find says use DBCA to create a database - but I don't seem to have DBCA anywhere.
What I do have installed is:
Oracle - OraClient11g_home1
Oracle - OraDb11g_home1
Oracle Business Intelligence
Oracle Weblogic
Does Oracle have a separate Database Server that is not included in the above? (Like MS SQL Server)
I'll note that I am completely new to Oracle and may be missing something very simple, so any help would be appreciated.
I'm looking for an answer that can lead me to how I can install DBCA and create my database but extra kudos for any additional brief information on how these Oracle building blocks work independently and together.
DBCA is the database configuration assistant. It is a wizard used to create a database and should be instaled during the server install. If you are testing you just want to create a database as part of the server insall and ignore dbca.
Oracle - OraDb11g_home1 is the database (most probably at least - given then Oracle naming conventions). DBCA was called as part of the installation process.
Note that a "database" in Oracle terms is something completely different than a "database" in MS SQL Server. A SQL Server "database" is closer to an Oracle schema.
Related
how to create a synonym for a table of a schema in postgresql database on a server into a schema of oracle database on another server?
I have a schema on oracle database on a server and want to create a synonym a table present in a schema of postgresql database on another server.
To create the synonym, we need to have database remote link between these two databases present on two different servers.
How can we do this? Please provide me one solution.
Just to clarify, I believe the question is trying to figure out how to get PostgreSQL data to appear as a table inside of Oracle. (The existing comments seem to be reading it the other way around, in which case, yes, an FDW would be the solution, but in this case that will not work).
In the past (on older versions of Oracle) when we needed this we were forced to build custom replication scripts to transfer data from Postgres into Oracle systems. For a single table, it is pretty straightforward to do with something like Perl & DBI... feel free to substitute that with your favorite scripting language.
On newer Oracle systems, I believe you can use Oracle Database Gateway to accomplish this. I am not sure if they support Postgres directly, but they do support ODBC (and I think JDBC) which should work. Here is an example blog post setting this up with MSSQL (http://oracle-help.com/oracle-database/installation-oracle-database-gateway/), the process should be similar for Postgres.
Hope this helps!
I am generally a Sql Server coder, but we have a client who wants to move a system from Sql to ORACLE due to the new licensing model of Sql Server.
I know historically, ORACLE has no logical grouping of objects within a db/schema, along the lines of a Sql Server schema. It's been a while since I've done any real ORACLE work though, so I'm just wondering if somewhere along the line, they may have added such a construct?
The version of ORACLE we are porting the Sql Server database into is ORACLE 11g (11.2).
Traditionally, I've seen oracle developers do this using just a prefix on table/view/object names. So for example a Sql Server object users.OPTIONS might become USR_OPTIONS in ORACLE. This works to be sure, but it just feels really kludgey to me, as it's not so much an actual hierarchy, but is sort of "forcing" one in by simply using contorted names.
Oracle has schema support in Oracle 11gR2. Oracle schemas are tied to a user. You'll have to (somewhat confusingly) create a user for each schema that you're creating. This isn't a big deal, but some people find it distasteful.
Oracle 12c Enterprise Edition has a feature called Multitenant that allows for multiple databases on the same Oracle server in much the same way that SQL Server allows out of the box.
I am completely ignorant in relation to databases and servers etc. Please bear with me.
I am trying to install a program called RealProspect 2009 which allows both local and remote sql database installation. Both types are done using the program installation .exe.
I have an azure account on which I have set up a server, and a database. During the program installation I am asked to provide the SQL server address, SQL server name, SQL username and SQL password. Using the information provided in the Azure online tools, I input all of this information into the fields and the program commences installing the database on the remote location. If I use incorrect information in these fields the installation returns an error and tells me it cannot log in, or the IP is not allowed etc., so I know it's actually attempting to connect and verifying the connection credentials.
When I use the correct server and login information the program proceeds. It spends several minutes "Creating the Tables". When it finishes doing that it attempts to begin "Installing Default Data (Categories)". At this point the program stops and I get the error in the subject line of this post "Invalid Object name 'Categories' "
I don't know enough to tell you what I don't know about this process.
I just signed up for Azure specifically because hosting the database with Azure is like $5-10 per month and I want myself and several other participants to be able to use the software with a common database. I created the server and database using the gui "tools/how to" from within the online Azure portal and I have never written a script, or accessed the server/database using anything other than the online GUI.
Thank you in advance for any help you may be able to provide. I hope i'm not too much of a speed bump to your day.
P.S. - For what it's worth you can download a free trial of the software from realinvestorsoftware.com and see if you could install it on a remote server. Maybe you can better see what I see and tell me how to do it on my own?
SQL Azure is VERY similar to SQL Server but there are a few features that SQL Azure doesn't support. That said, I'd be surprised if the app's installer is using any of the features that are unsupported by SQL Azure. My guess is that there's a bug in their installation scripts that might fail on more modern versions of SQL Server (note, their app installs on SQL Express 2005 which is no longer in mainstream support).
Just a couple of other thoughts for you: You get keys to install the app on two machines but:
"If you would like to install on more than two computers, then after you order your copy of RealProspect you can login to your customer account on this website and order additional activation keys for only $97 each."
Because you're going to be paying several hundred dollars anyway, and because (you yourself admit) you're not a database expert, it may be less cost, stress and hard-work to use their $27 per month database hosting service. That way you can concentrate on building your business while they take care of the technology.
[Update: 3/27/2013 # 23:05]
Another option Chris presented was to install the app and database locally and then migrate the database to Azure.
While this is potentially feasible, it requires some finesse to execute.
Microsoft provides a DB migration guide presenting several (pretty manual) options.
You might also want to read this thread which discusses how to migrate your DB via a DACPack.
Another option is to download and use the SQL Azure Migration Wizard which should do most of the heavy-lifting for you and make your DB migration simpler.
However, note that it is possible that the DB the app uses may use features of SQL Server that are not supported on SQL Azure. Hopefully this isn't the case, but be aware that this may be an issue.
Good luck :)
Chris,
I think SQL Database Migration Wizard v3.9.10 & v4.0.13 will solve your problem, I have used this tool several time to migrate db from local machine to sql azure, the most beauty of this tool it also highlights the error or sql which couldn't be migrated to Azure, so we can easily find alternate syntax of such sql queries
We are trying to build a data access layer for using both Oracle and SQL Server (not at the same time).
We use EF Model-first for creating the model and the create the SQL scripts for building the database. Our first thought was to create 2 EDMX files, one for each type, and use the appropriate one depending on the client's need. We are using the Oracle and SQL Server database generation workflow and DDL generation template to create the scripts for each database.
Our main problem is when the database schema changes we do not want to drop and recreate the DB but only create the migration scripts to update the DB base on our model (clients have many data that will be lost).
We use EF power pack for extracting the migration scripts for SQL Server but there is nothing like it for Oracle.
We want help to find a good data layer (1 EDMX for both Oracle and SQL Server if it's possible and not complicated) and a good way to generate database changes from our model to update existing client DBs in case of a new application release
We found this as a starting point
http://msdn.microsoft.com/en-us/data/ff830362 but there is not mention for Oracle support.
We have tried code-first and EF Migrations but Oracle failed us again on the DB creation and migration.
Any recommendation on how we can accomplish this?
Thank You
There is no way to have single EDMX for both SQL Server and Oracle. EDMX consists of three parts CSDL (entity definition), SSDL (database definition), MSL (mapping between those definitions). SSDL must always target concrete database so you need at least separate SSDL for Oracle and SQL Server and if you are lucky you will not need separate MSL as well (mapping must be exactly same which will probably not happen if you are using any tool to generate the database).
So you always need at least part of EDMX file for second DB and manually maintain it.
If you need DB migration supporting Oracle you must look for tool from Oracle (or third party). For example RedGate offers tools supporting schema migration for both SQL Server and Oracle.
Visual Studion Premium and Ultimate edition also offers tools for comparing database schemas. It by default supports only SQL Server but Toad Extensions should add support for Oracle as well.
Once you have any of these tools you just need to compare schema deployed on customer server with your new schema and the tool should create migration script for you.
The best article I found on this topic is from Paul Reynolds Blog.
Try to go through from part 5 to part 9.
There are so many gotchas about Oracle mentioned there... is very helpful!
Hello,
I'm new here, so sorry, if my question is too basic. However, maybe you have some advice, example, links, which could help me... I'm trying to find something helpfull for few days, but no results as for now.
I'm working in a distributed environment. I have a Oracle server hundreds of miles away and a MS SQL server close to me. I'm writing a application using Visual Web Developer 2008 Express. I need some data from Oracle. It's not worth to query the Oracle server every time i need some data from it. I'd prefer to run some Oracle queries once each night and store results in some local (SQL Server) tables. I assume, I should run queries through standard windows scheduler (Windows Server 2008). I have the basic connectivity - I can open Oracle Database from local Visual Studio.
The questions are:
How to write a query/procedure/function that would get data from Oracle and put them into a SQL Server table (possibly recreated before each query run)?
How can I run such a query from command line (or in other way run from scheduler)
What naming conventions are applicable? In VS I use something like //IP.IP.IP.IP/Name and a user with password.
Thanks for any help or advice.
Regards,
Matteo
I suggest you speak to the DBA's of the Oracle and SQL Server databases, as there may be other considerations you need to bear in mind. (Data Integrity, Security, ownership etc.)
One route you could follow would be to implement DTS (For older databases) or SSIS (for new versions of SQL Server) processes to copy the data across on the schedule you want. (This is pretty much what they were built for.)
How much data are we talking about?
If there is a small quantity that you need to transfer every day, you can write a stupid fetch and insert script in language of your choice.
You only need to search for better solutions if "sync" would take too much resources.
Thanks...
I'm the DBA for the SQL Server, which will serve only for my application. For Oracle I just want to read data and I have enough privileges and agreement with DBA's. Security, ownership and integrity are not an issue for now. I just need some technical advise how to get data from Oracle to MSSQL tables on a schedule.
I use MS SQL Server 2008 Express SP1. I'm very close to solve my problem - I have established connections and everything installed and working. I just don't know, how to run a query, which would get data from Oracle and put into MSSQL, on regular basis, without manual interaction.
I've some experience in programming, but not much in databases (except creating complex SQl queries). Therefore some example or links to detailed description would be helpful. I'm not sure about naming conventions, differences between procedures, functions and queries, command line options to run db automation procedures and so on. I'm also not sure, about which mechanisms or technologies are available in MS SQL Server 2008 Express edition.