Anyone aware of any tool which I can use to get ERD for existing advantage database? I am messing around with Advantage Data Architect but unable to find any option for ERD. I have also tried PowerDesigner but can't find Advantage Database option under DBMS.
TOAD does it in my case. I am using advantage 8.1 so TOAD will support it.
Related
is there any way to migrate to datomic directly from postgres..?
I have one existing postgres database i am planning to migrate to datomic
is there any source or library from where i can get help?
There's no straight-forward answer to this question or automated, general purpose tool for this. In general, ETL is not trivial, especially when moving between different types of databases (e.g. from table-backed SQL to Datomic).
That said, to get started in solving this for your case you might find Onyx, a project that transfers data to and from a SQL database (MySQL) and Datomic, to be a helpful example.
EDIT: As of December 2016, there is now a video available demonstrating a way to architecture an import job from SQL to Datomic by Stu Halloway, available here.
We have Delphi XE2. We are looking for a database for our application. We have tried Absolute Database and it supports most of SQL commands we need. I see most of Delphi users choose Firebird but it seems to hard to work with. I am so much confused about databases and licenses. Here are my problems:
When we choose a database, let's say Absolute Database, Firebird, MySql embedded etc. and if we have for example 3.000 customers, do we still need to pay to Database developers? Or is it one time fee? I am so much confused because they say when we buy, we can use it inside our building ( http://www.componentace.com/order/licenses.php ). But when we release our software, our customers will need to use the same database of course.
Absolute DB is easy to install and supports most of SQL queries. Firebird does not support most of SQL queries. Is this correct?
When we try to use Firebird, we use FlameRobin to design database. But when we try to connect using IB components, it says "Unable to connect database".
Thank you very much...
Firebird has no licensing fees at all. However, it's smart to help maintain this great project once you rely on it. There is a lot of ways to help Firebird project:
http://www.firebirdsql.org/#consider-your-contribution
Not correct. Firebird is very powerful and supports most SQL standards plus a great SQL extensions for stored procedures and triggers
Check your database connection string. It's usually something like server_ip:full_db_path if you're connecting over a network, or just full_db_path if local. You can always use an ALIAS in place of full_db_path. Make sure you have Firebird server running or, if using embedded, if it's installed correctly. Firebird has a great and very complete documentation and one of the best support groups on open source projects.
It depends on database. Absolute Database is embedded database, everything is included in your exe. Most database engines however are standalone, so they are installed as applications. It looks like if you buy commercial Absolute Database licence, no royalties are needed: http://www.componentace.com/order/order_product.php?id=8
Firebird supports most SQL standards. According to this answer, most SQL compliant embedded database is Firebird: Which embedded database has maximum SQL compliance, and concurrency support?
You must have some configuration issues with IB components, hard to say more without more information. On the otherhand, IB components are for Interbase, so you might find something else better, like UIB.
If you'll choose Firebird, then take a look at IBExpert. This is absolutely the best administration tool available for Firebird. But not cheap. =(
You should also look at Interbase, also marketed by Embarcadero, the Delphi vendor. Interbase is not the same thing as Firebird, which is probably why the IB components you mentioned didn't work.
Yes, each customer will usually have to purchase the IB database. However, there are additional choices with Interbase, depending on how you structure your application. Check how they work and see if they can fit better with what you are trying to do.
What are the option in terms of applications that help build SQL statements against a SQL Server database?
We have some users that need to build SQL statements, preferably through drag and dropping or linking up tables etc.., against a SQL Server databse who don't have any experience in this area.
Any Ideas?
Visual Studio 2008 / 2010 have this featue and works well. I mean LINQ to SQL or Entity Framework, but in bigger projects I dont prefer Entity Framework.
The Sql Query editor in sql server 2005 and above is very good for that sort of operation. I found that the combination of drag and drop columns with the sql instructions below helps non-sql developers learn a little about sql and tends to wean them off of the editor.
I actually just ran into this problem in my own project.
One option is to purchase a tool that does precisely what you're looking for. If you do something like that, you're more likely to get something that's full-featured, well-supported, and has a lot of nice bells and whistles to make your job easier.
However, as both Svisstack and george9170 pointed out, there are already tools within the Visual Studio development environment. Here is how I'm proceeding:
I use Microsoft SQL Server Management Studio's Diagram editor to perform the dragging and dropping of tables. This works fairly well, although it's a bit more cumbersome to work with than some of the tools I investigated. (For the record, the reason I didn't use the tools I investigated was the cost.)
Once I develop the tables in the diagram, I tell MSSMS to generate the tables.
I then use the Database Publisher (it comes with VS2008 and VS2010) and I connect with the database. Using LINQ to SQL, I let the magic work behind the scenes so that I can utilize the various objects which will interact with the database.
If I'm not explaining this well, check out the two links below. It should make things more clear.
Using Database Projects for Visual Studio
NerdDinner - An ASP.NET MVC tutorial, but with good information on LINQ to SQL.
By using LINQ to SQL (as described in the second link), your users should be able to build queries against the database fairly easily. It's not drag and drop, but it's very simple and straightforward.
First, I hope they are not doing their queries against a production database!
For regular non developers, try using excel, for these reasons:
1) most generic users might have it on their PC already.
2) drag and link tables. There is a little GUI for simple drag and link tables in there.
3) Support. When they get into trouble, they can e-mail me the file and I can see what they have so far. I'll end up writing views or procedures for them to use.
4) They can use the results data using familiar excel interface and functions, which helps since their SQL ability is so limited.
For developers these GUI tools are extremely limited in what you can do with your queries. I've never found one that can do UNIONs, derived tables, or CTEs. I'm not sure if any can even do OUTER JOINs. For simple tasks, they might be ok, but to switch back and forth all day would be a pain, so I just type them up.
You can use Access databases as well. They let you form your own queries by dragging and dropping in Access 2010. However, if you are looking for easy to access data without the worries of SQL syntax, you might want to look at using Ruby ActionViews. If you are talking about live editing of the entire database if the database is of any importance (you can easily delete or clear an entire database on accident), I would do it in pure SQL, or better yet, not do this at all. If you are using MySQL, you should look at the possibility of using phpmyadmin for maintaining your database. It is a web based tool that makes database administration easy and can help you form your queries.
I'd like the ability to create a schema for multiple database types such as MySQL, SQL Server, and PostgreSQL. I know ORM tools such as Hibernate can do this, but I won't be using an ORM to access the database so would like a solution that doesn't depend on one. Are there any tools that can do this?
Edit:
I forgot to mention that this is a personal project so I'm looking for something either cheep or free.
Take a look at Erwin.
Edit: (Based on question update)
Yeah Erwin is not going to be cheap. I did a quick search and found Toad Data Modeler, which I haven't tried but may be worth looking into:
Entity relationship diagrams - both Physical and Logical modeling (incl. inheritance)
Support for various databases (Oracle,
MS SQL Server, MySQL, Sybase Ase,
PostgreSQL, DB2)
Generation of SQL (DDL) scripts
More...
SQL Power offer a FOSS modeling tool, SQL Architect. It can generate DDL for several flavours of database. It is still technically beta (current release is 0.9.1) but it should be fine for a personal project. Find out more.
I know you said u don't want an ORM but SubSonic 3's migrations might just do the trick for you. You don't have to use the ORM just have SubSonic build itself from your database and have it as a separate class library. Then change the provider say from MSSQL to MySQL and have it rebuild itself.
PowerDesigner is a far better choice than Erwin but it too is expensive.
It took me roughly 16 hours to install the demo of Erwin, lots of failed attempts, incomprehensible error messages, help phone number which were disconnected.
PD will give you 14 day free trial.
I'm looking for a desktop/embedded database. The two candidates I'm looking at are
Microsoft SQL Server CE and Oracle Lite. If anyone's used both of these products, it'd be great if you could compare them. I haven't been able to find any comparisons online.
The backend DB is Oracle10g.
Update: Clarification, the business need is a client-server app with offline functionality (hence the need for a local data store on the client)
If the backend database is Oracle 10g it will probably be easier for you to use Oracle Lite - that way you don't have to use two completely different SQL dialects in the same project.
BTW, In my product I use SQLite as the desktop database
I'll second the vote for SQLite. I'm not sure what you're trying to accomplish but if you're doing any sort of local storage with syncing SQLite is a good choice. It has very widespread adoption and a lot of community support.
I also used SQLite as a desktop database. It's lightning quick and doesn't need a seperate process or any prior installation. All you need is a library to access the data as part of your code.
In light of your clarification I'd evaluate both OracleXE and Oracle 10g Lite before the others. Stick with the same tech, SQL/Oracle have some funny disagreements about SQL syntax and datatypes. I imagine you'd get the same issue with SQLite.
Perhaps I'm not fully understanding the need here. You are developing against 10g, but for your own test/dev environment you want a more lightweight database?
Or, are you developing an application that synchs with 10g database when online, but when offline uses a local store?
In both cases, I'd recommend staying with Oracle only because it will simplify your code.
In the first case, I'd wonder why you don't have a 10g QA machine somewhere that all the developers can connect to.
One advantage you have with SQL Server CE is that it is free and you can use the Sync Framework to syncronize it with any ADO.NET accesible database.
Also, the same SQL CE file is usable from the PC and mobile devices, and if you develop your application using .NET, you can use the same code for the desktop and the mobile device without changes.
You might want to look at Oracle XE. I cannot remember all of the differences, but O-Lite didn't fit my project needs. Oracle XE is a very good database for local development.
Brad
As #Nir mentioned, it's better to have homogeneous environment. However if you decide to not use Oracle Light, I would highly recommend you to take a look at Firebird. It's one of best choices for desktop database scenarios.