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Em 14/08/2012 15:47, Scott Mead
escreveu:
On Tue, Aug 14, 2012 at 5:24 AM, Robert
Gravsjö <robert.gravsjo@xxxxxxxx>
wrote:
> Can anyone advice about a tool to visualize a database
schema? Ideally, I would like something that takes the SQL
definition of a schema or database
> (essentially the output of pg_dump) and produces a
graphical representation of the tables, constraints and
indexes which can be moved around for ease of
> visualization (something like the "Graphical query
builder" that comes with pgAdmin =>1.14).
A simple method for this, open source cross-platform and work
for various RDBMS, is the following:
1. Download SQL Power Architect at https://code.google.com/p/power-architect/downloads/list
(it's a java app so you need a JVM installed and JDBC drivers
for the RDBMS to use)
+1 on SQL Power Architect. I use it a lot.
--Scott
I like SQL Power Architect, but IMHO it has a big flaw: you can't
create separate tables in several (logical) diagrams, you can have
only one big diagram for entire database (please, correct me if I'm
wrong!).
At this point, I do prefer DbWrench (besides it is not free, it's
cheap and works fairly well - but support is weak).
Regards,
Edson
2. Run it, right click in left pane and choose "Add source
connection" -> "New connection..." to create a connection
for your db
3. Expand the connection and the database and then simply
drag and drop the schema to the right pane.
4. Click on "Automatic layout" in the toolbar (it's the icon
that looks like three connected boxes and a green triangle)
>From there you can examine the database. There are some
limitations, constraints for example, so for more complicated
tools
look into ERD-tools as suggested by John in another reply.
Regards,
roppert
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