Re: Entity Relationship diagrams

From: Brian Wisniewski <brian_wisniewski_at_yahoo.com>
Date: Tue, 17 Apr 2001 06:57:08 -0700
Message-ID: <F001.002EAB0C.20010417061526@fatcity.com>

We just went through the purchasing process with CA over ErWin. It is definitley not free! But at least it isn't based on the Power Unit matrix. :)

I don't know of any free ones.

Visio has very basic capabilities, ErWin is still King of the market, Embaracadero is up and coming but as of yet doesn't have a repository, Sybase's PowerDesignor is very nice also, and there is also Oracle's Designor but when the documentation told me it would take several hours to install I didn't take that as a good sign just to use as a modeling tool. All of these have eval's available from their websites.

I have another client which is creating a small database (10 tables or so) and they are using Access to show the relationships and such. Very crude but it works for them.

• Brian
  • Saurabh Sharma <saurabhs_at_fcsltd.com> wrote:
    > hi,
    > ya there are tools which can do this work for you. one such tool i
    > know is
    > Platinum ERwin, but i don't know whether it's free or not. but what i
    > feel
    > is u can get some trial version of it.
    > try getting some more info about how to get it.
    > but one thing i tell u, it's really a good tool. i've used it, it's
    > handy
    > and easy to use. it has tools for reverse and forward engineering.
    >
    > bye,
    > saurabh
    > ----- Original Message -----
    > To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
    > Sent: Tuesday, April 17, 2001 2:20 PM
    >
    >
    > > Dear DBA Gurus,
    > >
    > > I have around 30 tables for which the columns,
    > datatypes, size
    > of
    > > each datatype, referential integrity constraints is decided. I
    > need to
    > draw
    > > E-R diagram linking each table with one or many tables. I am
    > looking for
    > a
    > > tool which will draw the diagram for me if I provide the column
    > names, its
    > > datatypes, referential integrity constraints etc. Is there any
    > free tool
    > > which will do this for me? If not, how do I do this? Any URLs or
    > links
    > or
    > > documents will be very much helpful. Any help in this regard will
    > be very
    > > much appreciated.
    > >
    > > TIA and Regards,
    > >
    > > Ranganath
    > >
    

    ---

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Received on Tue Apr 17 2001 - 08:57:08 CDT