tool to generate DB relation overview from DB schema - database

I am looking for eclipse plugin or a open source free tool that can connect to oracle DB and
can create a mapping diagram of DB.i need graphical view showing tables relations ,primary key , foreign key constraints
For my sql SQL work bench does the job.What about oracle?
Is there any such tool available?
I know that netbeans hibernate plugin can generate beans corresponding to db tables.

You might look into SQL Developer Data Modeler. You should be able to reverse engineer an ER diagram.

Related

Snowflake Data Model

I was playing around with Oracle SQL developer data modeler (SDDM) and created a data model with primary/foreign keys. When I convert it to get DDLs, I see the oracle syntax which is not going to work with Snowflake. So my question is, can you use Oracle SDDM to create data models for snowflake ?
The short answer is almost certainly yes. Snowflake is very forgiving in terms of syntax, and for example accepts the data type VARCHAR2.
You can even create tables with primary and foreign keys - although these will not be actually enforced by Snowflake.
You may find the following links helpful:
CONNECTING TO SNOWFLAKE WITH ORACLE SQL DEVELOPER DATA MODELER (SDDM)
HOW-TO: CUSTOMIZING ORACLE SQL DEVELOPER DATA MODELER (SDDM) TO SUPPORT SNOWFLAKE VARIANT
How to configure Oracle SQL Developer data modeller on Snowflake

SQL server ER diagram relations

I am generating an ER Diagram by SQL Server, but the relationships between the entities are not pointing to the columns they are supposed to (just to the entities).
Is there an option that would connect the exact columns the foreign keys should point to or should I do it manually every time?
I do not think the diagrams in SSMS are able to do this. You will need to look at other tools to generate your required design such as Visio.

Database Design and relation diagrams details

We have a production SQL Server and my desktop has SQL Server 2008 R2 Management Studio software installed. I have recently been given a task to perform data mining on our server DBs.
We have around 100 or more of tables there and it is getting very difficult for me to see how tables are related or has been created.
For a particular scenario I have cornered to 3 tables amongst the 100's that we have - but I cannot formulate how these tables are related with each other. I mean if only I know that one's table column is PK / FK of other then only I can execute something like below to extract data's -
SELECT *
FROM tablea,tableb
WHERE tableb.id = tablea.id
and do data mining on the result data set.
Please let me know how can I get all the tables and it relation details? What tool I can use such that further on information like above can be extracted or database designs can be known?
I tried to create the DB diagram but it showed me below error:
Do I need to install any other tool?
Below is my MS SQL Studio version details:
I think your solution is to use a database diagram (https://msdn.microsoft.com/en-us/library/ms189078.aspx)
Just drag all tables on the screen and it will show you the relations, this of course only when the primary-keys/foreign-keys are there.
For the error you are getting:
if I google that for you I get:
The backend version is not supported to design database diagrams or tables
The answer marked as the solution is:
This is commonly reported as an error due to using the wrong version
of SMSS. Use the version designed for your database version. You can
use select ##version to check which version of sql server you are
actually using

How to get database dependency/relationship among tables

Can anyone give me an idea about database flow diagram in my SqlServer Server Management Studio? I have a database (ERBIA) in my server; I want to know about the database relationship among different tables.
You can simply click on this:
And then select the tables for which you wish to create diagrams (graphs)
By database flow diagram I think you mean an Entity Relationship Diagram (ERD). There are a number of 3rd party tools that exist to create ERDs. ERWin, Visio, ER/Studio are some examples.
These tools can read the database schema information and create a diagram and draw relationship lines based on the Foreign Key constraints. You can edit the diagrams and depending on the tool update the database or generate a DDL script for the database changes.
SQL Server also includes a database designer, but it should be noted there is no separation from a logical model and the physical model. This means if you draw a line from one table to another indicating a relationship a FK will actually be created when you save the diagram. For some scenarios this would be a problem.

SQL Server entity tables and storedproc automation tools?

Are there any automation tools to ease creation of tables and adding standard insert/select/update stored procs, rather than doing hand creation for a large number of tables ?
If i have 100 tables to create (and later ALTER) and their associated stored procs in SQL Server 2008, what is the most convenient way to do it ?
ADDED:
Are there tools to auto-generate nice class skeletons (with data fields) tied-up with corresponding tables ?
I am using C# .NET 4.0 in Visual studio 2010 and Microsoft SQL Server 2008.
We are starting off a new project from scratch, so it would be helpful to get tools for quick bootstrap from Design on paper to initial code.
Any other related suggestions are appreciated!
Use SSMS Database Diagrams to design you 100 tables because one only has to type the column name and can point and click for data type, primary key, nullability, foreign key, etc. Create a diagram for each functional grouping. When the design is done you can write a script which will write the SQL for the stored proc to do the insert/update for the tables.
As you create the script to write the script you could post your work here.

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