Rick Curtis' UltraDev Tutorials
& Design Concepts
The focus of these tutorials is to provide
users with some advanced principles for using UltraDev and SQL 7 to create
larger database-driven Web sites. Many of the principles here will also
work for smaller sites driven with Access or other databases. These tutorials
assume that you already understand the basic techniques for working with
UltraDev (connecting to recordsets, creating repeat regions, etc.), These
are not tutorials for first-time UltraDev users. If you are not familiar
with these basic concepts, you need to go through the Ultradev tutorials
first. The
UltraDev manual is mostly just a basic tutorial with limited screen shots
and lacks explanations of many of the advanced features of the program.
There are now a series of good books out on using UltraDev 4 that fill
the gaps so if you are just getting your feet wet with UD, go through
the tutorial and then buy one of the books. I'd recommend you check out
the books from Basic
UltraDev.
I
haven't been on my soapbox for a while, so let me hop on up. If you are
planning on doing any kind of major database-driven Web site with
UltraDev (or any other product) then there are a few keys to success and
scalability.
- Pick
the Right Database - If you are going to create a large site, leave
Microsoft Access behind and go to a full-blown database like SQL Server,
Oracle etc. or create a Microsoft Access Project file that uses the
SQL Server database engine. Why? Access 97 and 2000 use a slightly different
SQL syntax that is not automatically transferable to enterprise databases
if you need to move up. In addition, enterprise databases like SQL Server
give you full-blown programming and business logic within the database.
[I haven't worked with the new database format in Access 2002 so I don't
know what flavor of SQL it generates but I expect that it is fully SQL
Server compatible].
- Write your Database Code in your Database Not in
UltraDev - This lesson has proven itself time
after time for me. I never write SQL in the little UD window. I create
all my database code in Stored Procedures or Views in SQL Server. If
I need to pass parameters to the SQL statement then I create a Stored
Procedure with variables for the parameters. This encapsulates all of
your database logic where it belongs, in your database not on an ASP
or Cold Fusion page. Then when you need to change something in your
database, you simply have to change the Stored Procedure or View not
all your UD pages. It also means that if you change from ASP to .NET
or some other platform change then a lot of your previous investment
in programming is still worthwhile, since it rests within the database
rather than on a specific Web page.
- Learn SQL - When UD first came out people said
'Learn to write script (VBScript or Javascript) it will make all the
world of difference.' Well I've learned how to write code and it's been
helpful but not as helpful as learning how to write Stored Procedures
and other SQL programming code. The more SQL you know, the more elaborate
interaction you'll be able to have with your database data.
I've worked
through my own big learning curve using ultraDev. Along the way as I've
mastered concepts I've managed to document them. These are my contributions
to the UltraDev community to help you get your sites developed. Happy
programming.
Rick Curtis
UltraDev
1.0 was released in June 2000 and offered a great deal of potential
for allowing users to create database-driven Web sites using the
program's predefined Server Behaviors and Extensions. UltraDev 1.0
was clearly a 1.0 version and although it provides a great design
tool for building database-driven sites, the initial version shipped
with limited Server Behaviors.
The
release of UltraDev 4.0 in December 2000 provided some significant
improvements to the code generated. Macromedia also added a number
of new Server Behaviors, and "Live Objects" that allow
for quick creation of Master-Detail Pages, Insert, and Update pages.
This significantly reduces the time required to build the most commonly
used pages and is a welcome feature. Also included is the Server
Behavior Builder which significantly improves the ability for end
users and third parties to create additional Server Behaviors.
UltraDev
has emerged as a sophisticated tool that allows programmers to incorporate
advanced coding and database interaction into graphically well-designed
Web pages. I have been pleased with Macromedia's recent efforts
to respond more to the needs of developers and hope to see continued
expansion of this more customer-centered approach.
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