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Entity Relationship diagram editor

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  • J Offline
    J Offline
    Jorgen Sigvardsson
    wrote on last edited by
    #1

    I'm trying to find a free one, which doesn't expire in 30 days, and costs little or nothing. I'm doing some database stuff on my free time, so I can't buy it through work. Dezign for Databases is nice, but I really don't feel like paying for it since it's for personal use. Do you know of a free one, which is fairly good? (It's ok if it's low cost < $50) Reverse engineering from an existing database would be nice, but not a requirement. Generation of SQL code is however. Thanks. :)

    -- Federal law prohibits changing the channel

    J M P Z C 5 Replies Last reply
    0
    • J Jorgen Sigvardsson

      I'm trying to find a free one, which doesn't expire in 30 days, and costs little or nothing. I'm doing some database stuff on my free time, so I can't buy it through work. Dezign for Databases is nice, but I really don't feel like paying for it since it's for personal use. Do you know of a free one, which is fairly good? (It's ok if it's low cost < $50) Reverse engineering from an existing database would be nice, but not a requirement. Generation of SQL code is however. Thanks. :)

      -- Federal law prohibits changing the channel

      J Offline
      J Offline
      Jeremy Falcon
      wrote on last edited by
      #2

      MS used to sell SQL Server 2000 Dev Editon for like $50 that did everything you need. Also, you can use Access via ODBC to connect to most backends, to use it's designer (it edits the DB directly, for the SQL you'd have to use the DBMS for a dump). Or did I miss the idea?

      Jeremy Falcon

      J 1 Reply Last reply
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      • J Jeremy Falcon

        MS used to sell SQL Server 2000 Dev Editon for like $50 that did everything you need. Also, you can use Access via ODBC to connect to most backends, to use it's designer (it edits the DB directly, for the SQL you'd have to use the DBMS for a dump). Or did I miss the idea?

        Jeremy Falcon

        J Offline
        J Offline
        Jorgen Sigvardsson
        wrote on last edited by
        #3

        Jeremy Falcon wrote:

        Or did I miss the idea?

        It's "halfway" there. I have a developer's edition of SQL which I snatched from work. However, its diagram editor understands the physical model only (which is a bit too low level for my taste). I like the ER-notation (1:1, 1:n, n:m, identifying, non-identifying, etc), because it matches my thoughts better than "FK->PK". :)

        -- A Stern Warning of Things to Come

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        • J Jorgen Sigvardsson

          Jeremy Falcon wrote:

          Or did I miss the idea?

          It's "halfway" there. I have a developer's edition of SQL which I snatched from work. However, its diagram editor understands the physical model only (which is a bit too low level for my taste). I like the ER-notation (1:1, 1:n, n:m, identifying, non-identifying, etc), because it matches my thoughts better than "FK->PK". :)

          -- A Stern Warning of Things to Come

          J Offline
          J Offline
          Jeremy Falcon
          wrote on last edited by
          #4

          Jörgen Sigvardsson wrote:

          I like the ER-notation (1:1, 1:n, n:m, identifying, non-identifying, etc), because it matches my thoughts better than "FK->K".

          Um, beats me then. I guess I'm old fashioned. :-D

          Jeremy Falcon

          1 Reply Last reply
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          • J Jorgen Sigvardsson

            I'm trying to find a free one, which doesn't expire in 30 days, and costs little or nothing. I'm doing some database stuff on my free time, so I can't buy it through work. Dezign for Databases is nice, but I really don't feel like paying for it since it's for personal use. Do you know of a free one, which is fairly good? (It's ok if it's low cost < $50) Reverse engineering from an existing database would be nice, but not a requirement. Generation of SQL code is however. Thanks. :)

            -- Federal law prohibits changing the channel

            M Offline
            M Offline
            Michael A Barnhart
            wrote on last edited by
            #5

            Jörgen Sigvardsson wrote:

            Entity Relationship

            Does it have to be an Entity Relationship editor? I have been using Sparx EA UML modeling for much of my work and following some learning curve have been successful generating DDL for oracle 9i. I would think many of the UML modelers would have similar capability.

            J 1 Reply Last reply
            0
            • M Michael A Barnhart

              Jörgen Sigvardsson wrote:

              Entity Relationship

              Does it have to be an Entity Relationship editor? I have been using Sparx EA UML modeling for much of my work and following some learning curve have been successful generating DDL for oracle 9i. I would think many of the UML modelers would have similar capability.

              J Offline
              J Offline
              Jorgen Sigvardsson
              wrote on last edited by
              #6

              Michael A. Barnhart wrote:

              Does it have to be an Entity Relationship editor?

              Yes. In my experience, all modeling tools which aren't specifically designed for a particular task, isn't very good. I did dabble a little with the trial, but I didn't like it. I'll save the UML stuff for the code. :)

              -- In Hypno-Vision

              1 Reply Last reply
              0
              • J Jorgen Sigvardsson

                I'm trying to find a free one, which doesn't expire in 30 days, and costs little or nothing. I'm doing some database stuff on my free time, so I can't buy it through work. Dezign for Databases is nice, but I really don't feel like paying for it since it's for personal use. Do you know of a free one, which is fairly good? (It's ok if it's low cost < $50) Reverse engineering from an existing database would be nice, but not a requirement. Generation of SQL code is however. Thanks. :)

                -- Federal law prohibits changing the channel

                P Offline
                P Offline
                Prakash Nadar
                wrote on last edited by
                #7

                check out StarUML[^]


                -Prakash

                J 1 Reply Last reply
                0
                • J Jorgen Sigvardsson

                  I'm trying to find a free one, which doesn't expire in 30 days, and costs little or nothing. I'm doing some database stuff on my free time, so I can't buy it through work. Dezign for Databases is nice, but I really don't feel like paying for it since it's for personal use. Do you know of a free one, which is fairly good? (It's ok if it's low cost < $50) Reverse engineering from an existing database would be nice, but not a requirement. Generation of SQL code is however. Thanks. :)

                  -- Federal law prohibits changing the channel

                  Z Offline
                  Z Offline
                  Zdeslav Vojkovic
                  wrote on last edited by
                  #8

                  you can try dbdesigner[^].

                  J 1 Reply Last reply
                  0
                  • J Jorgen Sigvardsson

                    I'm trying to find a free one, which doesn't expire in 30 days, and costs little or nothing. I'm doing some database stuff on my free time, so I can't buy it through work. Dezign for Databases is nice, but I really don't feel like paying for it since it's for personal use. Do you know of a free one, which is fairly good? (It's ok if it's low cost < $50) Reverse engineering from an existing database would be nice, but not a requirement. Generation of SQL code is however. Thanks. :)

                    -- Federal law prohibits changing the channel

                    C Offline
                    C Offline
                    Christopher Duncan
                    wrote on last edited by
                    #9

                    Although it's $300, I've had a number of people tell me about how great a deal the new Microsoft Action Pack[^] is, which includes Visio. You might find it worth checking into.

                    Author of The Career Programmer and Unite the Tribes www.PracticalStrategyConsulting.com

                    J 1 Reply Last reply
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                    • Z Zdeslav Vojkovic

                      you can try dbdesigner[^].

                      J Offline
                      J Offline
                      Jorgen Sigvardsson
                      wrote on last edited by
                      #10

                      I tried it, but it's far too MySQLish.. :(

                      -- Behold, for I am THE CORRUPTOR!

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                      • P Prakash Nadar

                        check out StarUML[^]


                        -Prakash

                        J Offline
                        J Offline
                        Jorgen Sigvardsson
                        wrote on last edited by
                        #11

                        Hmm.. definately worth checking out. Thanks!

                        -- Behold, for I am THE CORRUPTOR!

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                        0
                        • C Christopher Duncan

                          Although it's $300, I've had a number of people tell me about how great a deal the new Microsoft Action Pack[^] is, which includes Visio. You might find it worth checking into.

                          Author of The Career Programmer and Unite the Tribes www.PracticalStrategyConsulting.com

                          J Offline
                          J Offline
                          Jorgen Sigvardsson
                          wrote on last edited by
                          #12

                          Visio is only good for small stuff in my opinion. It also doesn't visually show the type of relations between entities. I want need the visual cues. :)

                          -- Behold, for I am THE CORRUPTOR!

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