SQL ERD Diagram online AJAX tool

by Yuval Ararat on 18/09/2008

Hi guys i found this online demo tool to sketch your SQL ERD diagrams.
Although supporting only the great MySQL and SQLite and not Oracle or SQL Server, the tool is amazing from the UI design and usability.

{ 10 comments… read them below or add one }

Lawrence Maina December 15, 2009 at 6:00 pm

Oh my God, I managed to develop a powerful database within just few minutes

Furqnaz April 28, 2010 at 4:10 am

Q.Draw the ER diagram of the following schema.

1.EMP(SSN,Name,Birthdate,Street,City ,DNO,SuperSSN,Salary)-stores information about emloyees,with SSN as key.
The DNO denotes the department to which they are assignes and the SuperSSN is the SSN of their supervisor.Every employees has a supervisor(assume the CEO has a supervisor with a fictious SSN).

2.DEPT(DNUM,Dname,MGRSSN)-Stores information about the departments such as the unique departments number,a unique department name(Dname),and the SSN of the department manager(every department must have a manager).

3.PROJECTS(PNum,Panme,PLocation,DNO)-information about Projects at the Company,with unique Project number(PNO).
The project has a name and a location and is controlled/managed by a department.

4.WORKS(ESSN,PNO,Hours)information about the projects that each employees works on the number of hours they works on each project.

plz solve there queries….

yuval April 28, 2010 at 9:47 am

Hi Furqnaz,
What is the query that you have?
Are you wishing me just to draw the ERD?
Is there a logical issue with the structure?

wida April 30, 2010 at 6:55 pm

furqnaz question sounds like a typical problem given for homework in database class. i remember [almost] the same design in a database text book by elmasri and navathe

yuval April 30, 2010 at 8:53 pm

True, if he only asked for something else then me doing his homework.
Logic problems are much more satisfying then copying.

Aisha December 30, 2010 at 7:00 am

Yuval please please help me in drawing ER diagram of Dell Website please :( ASAP I shall be very thankful to you. .

Aisha December 30, 2010 at 7:08 am

Can anyone please help?

Aisha December 30, 2010 at 7:09 am

I need to draw an ER diagram for Dell.com online shopping like if a customer purchase any product how do they buy n make payment . . a possible model behind that . . please help me . .

ness October 11, 2011 at 11:38 pm

kindly help me in drawing ERD for online ordering system…..please100x asap

ness October 14, 2011 at 10:47 pm


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