Are there programs to graph database schema?

[Tony Reina]

I know that there are standard ways to graph relational databases.

It occured to me that perhaps programs existed which simply parsed the
table definitions and plotted the graphs for you.

Anyone know of such a thing?

Thanks.
-Tony

[Enrico Ortmann]

Hi Tony,

TR> It occured to me that perhaps programs existed which simply parsed the
TR> table definitions and plotted the graphs for you.

If I need to create an [E]ER-Modell from an existing databasae,
I mostly use MS Visio professional. It can reverse engineer via
ODBC lots of DBS.

Rico




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[Juan Miguel]

Hi, I use MS Visio Professional, and it works (not very good), but it works.
I ever wondered if there is a opensource tool, that let me create an
automatic ER-Model diagram from an existing DB, like MS Visio.
Do you know if this tool exists ?

Thanks

Post by Enrico Ortmann
Hi Tony,
TR> It occured to me that perhaps programs existed which simply parsed the
TR> table definitions and plotted the graphs for you.
If I need to create an [E]ER-Modell from an existing databasae,
I mostly use MS Visio professional. It can reverse engineer via
ODBC lots of DBS.
Rico
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joining column's datatypes do not match

[Thierry Missimilly]

Hi,

For a small schema, i've used PGACESS. There is a graphical editor which help
you to draw boxes with the foreign keys.

Thierry

Post by Juan Miguel
Hi, I use MS Visio Professional, and it works (not very good), but it works.
I ever wondered if there is a opensource tool, that let me create an
automatic ER-Model diagram from an existing DB, like MS Visio.
Do you know if this tool exists ?
Thanks

Post by Enrico Ortmann
Hi Tony,
TR> It occured to me that perhaps programs existed which simply parsed the
TR> table definitions and plotted the graphs for you.
If I need to create an [E]ER-Modell from an existing databasae,
I mostly use MS Visio professional. It can reverse engineer via
ODBC lots of DBS.
Rico
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match

[Enrico Ortmann]

Guten Tag Juan Miguel,

Hi Juan,

JM> Hi, I use MS Visio Professional, and it works (not very good), but it works.
JM> I ever wondered if there is a opensource tool, that let me create an
JM> automatic ER-Model diagram from an existing DB, like MS Visio.
JM> Do you know if this tool exists ?

Unfortunately I don't. I am unsatisfied with Visio too, but the point
of reason for using it is exactly that I don't know a better tool.
If anybody does - please let me know!

Rico


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[Leslie]

Hi All ,

Have a look at DbVisualizer-4.0.2
Java based ER tool that works very well.

Regards.
Leslie.

Post by Enrico Ortmann
Guten Tag Juan Miguel,
Hi Juan,
JM> Hi, I use MS Visio Professional, and it works (not very good), but it works.
JM> I ever wondered if there is a opensource tool, that let me create an
JM> automatic ER-Model diagram from an existing DB, like MS Visio.
JM> Do you know if this tool exists ?
Unfortunately I don't. I am unsatisfied with Visio too, but the point
of reason for using it is exactly that I don't know a better tool.
If anybody does - please let me know!
Rico
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[Rajesh Kumar Mallah]

Juan Miguel wrote:

Greetings!

pg_autodoc

http://www.rbt.ca/autodoc/index.html

can produce .dot files that can be charted using
graphviz.

http://www.graphviz.org/

It works pretty well for medium sized databases
but for large it tends to produce a spaghetti.

Check the "Related Sites" in graphviz.org homepage.



Regds
mallah.

Post by Juan Miguel
Hi, I use MS Visio Professional, and it works (not very good), but it works.
I ever wondered if there is a opensource tool, that let me create an
automatic ER-Model diagram from an existing DB, like MS Visio.
Do you know if this tool exists ?
Thanks

Post by Enrico Ortmann
Hi Tony,
TR> It occured to me that perhaps programs existed which simply parsed the
TR> table definitions and plotted the graphs for you.
If I need to create an [E]ER-Modell from an existing databasae,
I mostly use MS Visio professional. It can reverse engineer via
ODBC lots of DBS.
Rico
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[Hal Angseesing]

We recently purchased DBVisualizer. It's really quite good for this kind of diagram (some quirks).
http://www.dbvis.com

It's not open source though and you do have a small charge to pay.
Cheers,
Hal.

-----Original Message-----
From: Rajesh Kumar Mallah [mailto:***@trade-india.com]
Sent: 14 January 2004 18:26
To: Juan Miguel
Cc: pgsql-***@postgresql.org
Subject: Re: [ADMIN] Are there programs to graph database schema?


Juan Miguel wrote:

Greetings!

pg_autodoc

http://www.rbt.ca/autodoc/index.html

can produce .dot files that can be charted using
graphviz.

http://www.graphviz.org/

It works pretty well for medium sized databases
but for large it tends to produce a spaghetti.

Check the "Related Sites" in graphviz.org homepage.



Regds
mallah.

Post by Juan Miguel
Hi, I use MS Visio Professional, and it works (not very good), but it
works.
I ever wondered if there is a opensource tool, that let me create an
automatic ER-Model diagram from an existing DB, like MS Visio.
Do you know if this tool exists ?
Thanks

Post by Enrico Ortmann
Hi Tony,
TR> It occured to me that perhaps programs existed which simply
parsed the
TR> table definitions and plotted the graphs for you.
If I need to create an [E]ER-Modell from an existing databasae,
I mostly use MS Visio professional. It can reverse engineer via
ODBC lots of DBS.
Rico
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TIP 9: the planner will ignore your desire to choose an index scan if
your
joining column's datatypes do not match

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[Rick van Dijk]

hello tony,

Our tool DeZign for Databases can do this for you. With the ImportER
Scripts add-on you can import SQL scripts containing create table
statements etc into the data modeling tool DeZign for Databases.

more info at
http://www.datanamic.com

regards
rick

Post by Tony Reina
I know that there are standard ways to graph relational databases.
It occured to me that perhaps programs existed which simply parsed the
table definitions and plotted the graphs for you.
Anyone know of such a thing?
Thanks.
-Tony