Sever vs. Database Code, Server Options

I'm looking for some introductory as well advanced
Oracle or non-Oracle texts/tutorials on
1. Deciding how to split code to
- database strored code
- and application (Apex) code.
Advantages, disadvantages etc.
Especially, some description of database stored code execution.
2. methods of Apex installation.
What are the options for the servers
and what are the choice criteria.
Thank you very much,
Marios

Marcos,
Hmmm... You are asking interesting questions.
How many tiers can an APEX application have?
Well, this all depends on how you define tiers and whether or not you are talking physically or logically.
Physically APEX has three basic tiers; Browser, Application Server and Database, where 'Application Server' can be a number of solutions (Apache/Oracle HTTP Server and mod_plsql or the embeded PL/SQL gateway in Oracle 11g or Oracle XE). The reality of our physical Application Server tier is that it really just forwards requests from a browser into the APEX engine. So as Application Servers go, it's really, really light.
Logically things are a bit different.
Logically it might make sense to say that the APEX engine is the 'Application Server', even though it lives inside the database since its really the engine that runs our application logic.
Let's say that the browser is one tier (client/view) and the database is another tier (data/model). Those tiers are pretty straight forward.
Next comes the 'application logic' or controller tier. If we logically separate the storage of our data in the database (and it's a pretty good idea to do this physically too with different schemas and/or packages) from the application logic we can easily achieve a good model/view/controller architecture even if the controller and model tiers are both physically in the database.
So if the rendering of a data entry form is handled by the browser and the database holds the table that stores the data that form accepts, where should we put the business rules that will manipulate the data?
As Tyler suggested it's almost always a good idea to put the business rules inside the database. Let's say that some of the fields on our form are required. APEX allows you to make data entry fields required pretty easily, but if this wasn't enforced inside the database (with a NOT NULL column for instance) then another application (or even SQL/Plus for instance) might be able to put rows into the table with NULLs and break our business rule. There are many applications out there today that everybody was totally positive that no other application would ever be built against that are totally broken and/or have bad data because someone got around the application logic by building a bad application.
But also remember that as a development environment there's no reason why you couldn't call out to and/or consume web services, XML feeds, etc. from APEX. How you do this is up to you, but really, the sky is the limit.
Is there some sort of clearly separated 'application level'?
There can be if you want there to be. Certainly you can use an APEX workspace to hold your 'application level' information. Again as Tyler mentioned it's not a bad idea to put as much of this application level logic into reusable code libraries using potentially PL/SQL packages.
Is database stored PL/SQL code part of this 'application level'?
It certainly can be. Sometimes this can be a bit confusing, but there is really two 'sections' of PL/SQL code with APEX. The first is the actual APEX engine itself. The second is any PL/SQL code that results from using the wizards and/or PL/SQL code that you write directly. You should really keep the two separate. By default this is what APEX does with workspaces.
Hopefully that helps. If not, ask away...
Rich

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Do both of these work for Oracle Database 10g 10.2.0.4.0?Yes.
I thought I remember reading somewhere that only the Oracle Application Express Listener would only work with database version 11 or higher. No, that restriction (with the exception of 10g XE) applies to the third web server option which you haven't mentioned: Embedded PL/SQL Gateway (EPG), as discussed in your previous thread: +{thread:id=2201975}+
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hi
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Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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Moving the log file of a publisher database SQL Server 2008

There are many threads on this here. Most of them not at all helpful and some of them wrong. Thus a fresh post.
This post regards SQL Server 2008 (10.0.5841)
The PUBLISHER database primary log file which is currently of 3 blocks and not extendable,
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The database has several TB of data and a large number of push transactional replications as well as a couple of bi-directional replications.
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Hi Philip
you should try this long back suggested way of stopping replication and restore db and rename or detach attach
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/6731803b-3efa-4820-a303-4ffb7edf154a/detaching-a-replicated-database?forum=sqlreplication
Thanks
Saurabh Sinha
http://saurabhsinhainblogs.blogspot.in/
Please click the Mark as answer button and vote as helpful
if this reply solves your problem
I do not wish to be rude, but which part of the OP didn't you understand?
Specifically the bit about 20,000 transactions a second and database size of several TB. Do you have any concept whatsoever of what this means? I will answer for you, "no, you are clueless" as your answer clearly shows.
Stop wasting bandwidth by proposing pointless and wrong solutions which indicate that you did not read the OP, or do you just do this to generate points?
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Oracle Database Mobile Server 11 sync

Hi,
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Tables:
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Another problem is that the records of the sqlite database is neither replicated to the back-end database. I have to say that th sync process ends succesfully but I can see nothing on the in-queue and out-queue queues in the mobile manager console. So, what´s about this incomind and outcoming data? Th only thing i can see is a set of dirty records, these records are records on the back-end db, but I dont know what means...
Could you help me please?
Thank you very much.

Hi
Data Subsetting is to restrict the data each Client sees based on values you specify i.e.
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regards
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Hinding code with Optional Regions

I am getting an error:
HERE
I know why, it is because I have to use: <body
onload="load()" onunload="GUnload()"> in the line:
<body class="thrColFixHdr"
onload="P7_TMclass();P7_TMopen();load()"
onunload="GUnload()","P7_TMclass();P7_TMopen();MM_preloadImages('images/layout-images/clo se-tabs-over.gif')">
This is used to display a google map in my 'Location' page
but this is the only place I need that code and where the map does
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Is there any way of hiding part of that code in my template?
I have tried to have two versions of the line with and
without the map code in 'Optional Regions' but no luck.
Some expert advice greatly appreciated.
Cheers,
Richard

> 1. If I add:  to my template and make it true on the page with
the google map I get
> the
> Load() error on all other pages.
Yes - well, this is a problem with a template controlled
page. The body tag
is NOT editable. You *can* use an editable attribute on the
body tag for
the onload attribute, which would allow you to access the
values associated
with that attribute on each child page, but it's all-or-none
in the sense
that you would have to add the full text of that attribute on
each child
page (adding or subtracting the 'load()' call).
Are you using server scripting on these pages?
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"RICH POW" <[email protected]> wrote in
message
news:ful2gl$lqf$[email protected]..
> Thanks for the reply...
>
> I'm in a bit of a vicious circle here.
>
> 1. If I add:  to my template and make it true on the page with
the google map I get
> the
> Load() error on all other pages.
>
> 2. If I leave the script in I get a Null Value error on
all pages except
> the
> google map page.
>
> Do you know a way I can include that map just on that
page?
> Do you know how I can add the whole page with SSI or add
the <body
> onload="load()" onunload="GUnload()"> to the body tag
with an option
> region?
>
> Here is the map in it's simplest form:
>
http://adelantedesign.co.uk/websites/adelante/googlemap.html
>
> Thanks again for your time.
>
> Richard
>

If DW 2014.1 cc does not support database, binding, server behavior, and PHP/MySQL require it, but using Adobe Extensions Mngr IS NOT recommended, then WHAT TOOLS do we use to develop a database with DW?

I'm using windows DW 2014.1 cc. I'm following lynda.com tutorials to build a website database with PHP and MySQL. I learned I have to download Adobe Extension Mngr to active DATABASE, BINDING, SERVER BEHAVIOR panels, which I've done. BUT NOW I'VE BEEN ADVISED NOT TO USE THESE TOOLS for new development. If this is the truly the case, then WHAT TOOLS DO I USE to develop a website that has a database?

then WHAT TOOLS DO I USE to develop a website that has a database?
Besides the tools you would already need for a system using server behaviors (web server, PHP, MySQL, phpMyAdmin) the only extra tool you need is your own brain.
A lot of people are disappointed by the lack of database tools in DW now, but really it's much better this way. You can never achieve better than a rinky-dink dynamic website using server behaviors. The code Dreamweaver dynamic behaviors create is really terrible. (I'm not insulting the fine folks who wrote the feature. It's just a consequence of automated code.) You can write better, simpler, more maintainable code yourself, and over time you will improve. With server behaviors you cannot improve. you get stuck in database kindergarten.

Log the local variables (string type) to the database (SQL Server)

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Hello i like original,
After re-reading your original message, I think I might have a better understanding of what you would like to do. I have included a few links to Knowledge Base and Developer Zone articles that should be very useful for you. I have included these links below:
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Why not always use -server option?

Hello!
I've tried running some my applications with -server option - and discovered that for non-GUI apps -server renders drastic increase in execution speed.
For example code below takes only 2 seconds to execute with java -server while it takes more then 120 seconds with java -client option.
Now I'm considering writing all apps with
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And, in my code - does java runtime really create 1000 threads - or is there some optimization?
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JVM tutorial states that there are the cases when server performs slower. If you going to execute a small utility (<20 sec), use client.

Code format options ---Version 1.5.1.

Hi all,
I am new to SQL Developer tool.
Want to know where I can find settings for code formating options, like PL/SQL developer-Beautifier.
Also, can we generate E-R diagram like in Toad.
Tool Version 1.5.1.
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I am performing the cold backup and taking the below files backup.
Datafiles
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Archive log file
Backup of control file from trace
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I dont think higher version especially 5.1-5.3 will make any difference but oracle 9.2.0.4 will definitely will have an issue. If i am not wrong you need to startup the database with startup MIGRATE option after moving all the files to the new server
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The apparently disastrous depreciation of Database and Server Behaviours in Dreaweaver CC seem to have left a nasty taste in the mouth for many users. I am not a very experienced web developer, to the point where I cringe when describing myself as such, and I assume, possibly naively, that if Adobe have made them optional now, that there is an alternative; if not, the decision seems dimwitted in the extreme, and I did not expect that to be the case with a company who's software I have admired and found useful for so long.
So, assuming there is an alternative method to create dynamic data driven websites in Dreamweaver, can people please suggest what they are, and possibly point me towards the Adobe support and tutorials that encourage and explain their use. It must be in Adobe's interest to to get Dreamweaver's users to adopt the new technologies, and, at the moment, I cannot believe there is no adequate alternative.
I have seen many complaints about the depreciation of the support, but no one seems to be saying "don't use those, this is what you need to do the job". If anyone can do that for me, it would be greatly appreciated, and I imagine others would also benefit.
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Rob Hecker2 wrote:
As the web has evolved it makes sense that websites are no longer created by one person using one tool (DreamWeaver).
I agree with you there, depending at what level you are. A large design company will have specialists in all areas whilst a small one man set up will not. These small one-man band businesses usually attract low paying clients who will not have a budget to employ 'specialists' which is where DW server behaviours fitted in perfectly. Although it's benefited me enormously by learning how to manually connect and query databases I still think it was and is pretty lazy on the part of Adobe NOT to update the behaviours which were an important part of the program for many. 3rd party developers have produced extensions at a considerable cost, over and above what it costs to run DW. They quickly rolled out these extensions when it became clear Adobe had decided to upset many of its customers by not including any alternative in CC/CC 2014 - so don't tell me it would have taken many hours development and financial resources which Adobe just could not afford. That's bollocks. This is purely a decision by some wanker at top level in Adobe that is probably smoking crack and don't know their *** from their elbow, or what their customers really want.
Rob Hecker2 wrote:
It always seemed to me that by adding support for PHP/MySQL at all, Adobe was just going to frustrate people.
NO, the frustration is that Adobe introduce components and then doesn't develop them any further preferring to introduce a bag of dog poo into their programs like fluid grids instead of concentrating on what they do best.
Rob Hecker2 wrote:
PHP programmers do not use Dreamweaver for PHP Development. I recall a questionnaire on a website where the question was "What tools do you use for PHP development?" Dreamweaver was not even on the list of choices.
Serious php developers don't - you're right - but for those who don't program php/mysql on a daily or even weekly basis, but occasionally have the need for it, they do. Most websites can benefit from having a backend database these days and at a time when databases are main stream Adobe decide to ditch what was a premium attraction of the software, completely senseless decision. A few years ago when static sites were main stream Macromedia were ahead of the game an introduced the Server Behaviours. I guess the top brass in charge at the time (Macromedia) weren't smoking crack all day and instead listening to what their customers wanted.

To avoid writing database code in the front end

Hello,
I am working on a database application using 10g database as backend and dotnet as front end. I wish to execute only oracle stored procedure for all the select (to avoid hard parse and use of bind variable), DDL and DML operations; just to avoid writing database code in the front end. Can anyone please give me a little examples of :
1.Select query's output to be return as resultset by stored procedure.
2.DML example by stored procedure.
3.Any DDL example by stored procedure.
using scott.emp, so that i would just call the stored procedure, rather than giving select,DML and/or DDL commands in the front end. Even though i have read in the documentation, but a clear cut examples will help me to get into clear concept as well.
Thanks & Regards
Girish Sharma

Hi...
-->Select example
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is
begin
open rc for select * from emp;
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pempname varchar2,
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is
begin
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exception
when others then
result:=-1;
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-->DDL example
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coltype varchar2,
result out number)
is
begin
result:=-1;
execute immediate 'alter table emp add column ' || colname || ' ' || coltype ;
result:=1;
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Sever vs. Database Code, Server Options

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