Best Practice for IKE keys

Folks,
I am configuring my first site-to-site vpn using IPsec and IKE; however, I wanted to know if I should watch out for anything and the best practices for IKE.
I have generated a phrase that is 30 characters long, but should I include “special characters” in my IKE key?

Rather than the key length and 'strength' I'd focus on keeping a copy documented / stored securely offline somewhere. Process and documentation are at least as important as the technology.
99% of your protection comes from using a VPN at all as opposed to the characters used in your PSK.
If it's an option (e.g ASA 8.4 at both ends) I'd recommend using IKEv2.

Similar Messages

IP: Best Practice for capturing Key Figure input value in characteristics

Hi Gurus,
we have the requeirement to capture a plannable key figure as a characteristic as well for reporting reasons.
Input in the key figures will be a closed value ist (1 to 5) so no new master data will be created by that in the respective characteristics.
My first guess was an exit characterisic relationship, but obviously it is named "Characteristic Relationship" for a reason, as you cannot not derive values from key figures here.
Any ideas on what would be the best and easiest implementation scenario?
Many thanks in advance,
Tobias

Hi Tobias,
You can derive a characteristic value from a keyfigure using Characteristic relationship of type "EXIT".
Kindly let me know if your issue doesn't get solved using the EXIT type char rel.
EXIT type characteristic relationship:
The valid characteristic combinations and derivable characteristic values are defined by the customer-specific implementation of the specified exit class.
The exit class must implement the interface 'IF_RSPLS_CR_EXIT'. Only these types of classes are offered for editing in maintenance. We recommend that you derive your own class from the example class 'CL_RSPLS_CR_EXIT_BASE'. You then only have to implement the methods u2018CHECKu2019, u2018DERIVEu2019 and u2018CREATEu2019. The class 'CL_RSPLS_CR_EXIT_BASE' itself can be used directly, but it does not execute an action.
Note also the example source code given in the template class; an infrastructure for buffering is provided there, for example.
Regards,
Balajee

What is the best practice for creating primary key on fact table?

what is the best practice for primary key on fact table?
1. Using composite key
2. Create a surrogate key
3. No primary key
In document, i can only find "From a modeling standpoint, the primary key of the fact table is usually a composite key that is made up of all of its foreign keys."
http://download.oracle.com/docs/cd/E11882_01/server.112/e16579/logical.htm#i1006423
I also found a relevant thread states that primary key on fact table is necessary.
Primary Key on Fact Table.
But, if no business requires the uniqueness of the records and there is no materilized view, do we still need primary key? is there any other bad affect if there is no primary key on fact table? and any benifits from not creating primary key?

Well, natural combination of dimensions connected to the fact would be a natural primary key and it would be composite.
Having an artificial PK might simplify things a bit.
Having no PK leads to a major mess. Fact should represent a business transaction, or some general event. If you're loading data you want to be able to identify the records that are processed. Also without PK if you forget to make an unique key the access to this fact table will be slow. Plus, having no PK will mean that if you want to used different tools, like Data Modeller in Jbuilder or OWB insert / update functionality it won't function, since there's no PK. Defining a PK for every table is a good practice. Not defining PK is asking for a load of problems, from performance to functionality and data quality.
Edited by: Cortanamo on 16.12.2010 07:12

What is the best practice for inserting (unique) rows into a table containing key columns constraint where source may contain duplicate (already existing) rows?

My final data table contains a two key columns unique key constraint. I insert data into this table from a daily capture table (which also contains the two columns that make up the key in the final data table but are not constrained
(not unique) in the daily capture table). I don't want to insert rows from daily capture which already exists in final data table (based on the two key columns). Currently, what I do is to select * into a #temp table from the join
of daily capture and final data tables on these two key columns. Then I delete the rows in the daily capture table which match the #temp table. Then I insert the remaining rows from daily capture into the final data table.
Would it be possible to simplify this process by using an Instead Of trigger in the final table and just insert directly from the daily capture table? How would this look?
What is the best practice for inserting unique (new) rows and ignoring duplicate rows (rows that already exist in both the daily capture and final data tables) in my particular operation?
Rich P

Please follow basic Netiquette and post the DDL we need to answer this. Follow industry and ANSI/ISO standards in your data. You should follow ISO-11179 rules for naming data elements. You should follow ISO-8601 rules for displaying temporal data. We need
to know the data types, keys and constraints on the table. Avoid dialect in favor of ANSI/ISO Standard SQL. And you need to read and download the PDF for:
https://www.simple-talk.com/books/sql-books/119-sql-code-smells/
>> My final data table contains a two key columns unique key constraint. [unh? one two-column key or two one column keys? Sure wish you posted DDL] I insert data into this table from a daily capture table (which also contains the two columns that make
up the key in the final data table but are not constrained (not unique) in the daily capture table). <<
Then the "capture table" is not a table at all! Remember the fist day of your RDBMS class? A table has to have a key. You need to fix this error. What ETL tool do you use?
>> I don't want to insert rows from daily capture which already exists in final data table (based on the two key columns). <<
MERGE statement; Google it. And do not use temp tables.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

Best Practices for new iMac

I posted a few days ago re failing HDD on mid-2007 iMac. Long story short, took it into Apple store, Genius worked on it for 45 mins before decreeing it in need of new HDD. After considering the expenses of adding memory, new drive, hardware and installation costs, I got a brand new iMac entry level (21.5" screen,
2.7 GHz Intel Core i5, 8 GB 1600 MHz DDR3 memory, 1TB HDD running Mavericks). Also got a Superdrive. I am not needing to migrate anything from the old iMac.
I was surprised that a physical disc for the OS was not included. So I am looking for any Best Practices for setting up this iMac, specifically in the area of backup and recovery. Do I need to make a boot DVD? Would that be in addition to making a Time Machine full backup (using external G-drive)? I have searched this community and the Help topics on Apple Support and have not found any "checklist" of recommended actions. I realize the value of everyone's time, so any feedback is very appreciated.

OS X has not been officially issued on physical media since OS X 10.6 (arguably 10.7 was issued on some USB drives, but this was a non-standard approach for purchasing and installing it).
To reinstall the OS, your system comes with a recovery partition that can be booted to by holding the Command-R keys immediately after hearing the boot chimes sound. This partition boots to the OS X tools window, where you can select options to restore from backup or reinstall the OS. If you choose the option to reinstall, then the OS installation files will be downloaded from Apple's servers.
If for some reason your entire hard drive is damaged and even the recovery partition is not accessible, then your system supports the ability to use Internet Recovery, which is the same thing except instead of accessing the recovery boot drive from your hard drive, the system will download it as a disk image (again from Apple's servers) and then boot from that image.
Both of these options will require you have broadband internet access, as you will ultimately need to download several gigabytes of installation data to proceed with the reinstallation.
There are some options available for creating your own boot and installation DVD or external hard drive, but for most intents and purposes this is not necessary.
The only "checklist" option I would recommend for anyone with a new Mac system, is to get a 1TB external drive (or a drive that is at least as big as your internal boot drive) and set it up as a Time Machine backup. This will ensure you have a fully restorable backup of your entire system, which you can access via the recovery partition for restoring if needed, or for migrating data to a fresh OS installation.

Best practices for setting up projects

We recently adopted using Captivate for our WBT modules.
As a former Flash and Director user, I can say it’s
fast and does some great things. Doesn’t play so nice with
others on different occasions, but I’m learning. This forum
has been a great source for search and read on specific topics.
I’m trying to understand best practices for using this
product. We’ve had some problems with file size and
incorporating audio and video into our projects. Fortunately, the
forum has helped a lot with that. What I haven’t found a lot
of information on is good or better ways to set up individual
files, use multiple files and publish projects. We’ve decided
to go the route of putting standalones on our Intranet. My gut says
yuck, but for our situation I have yet to find a better way.
My question for discussion, then is: what are some best
practices for setting up individual files, using multiple files and
publishing projects? Any references or input on this would be
appreciated.

Hi,
Here are some of my suggestions:
1) Set up a style guide for all your standard slides. Eg.
Title slide, Index slide, chapter slide, end slide, screen capture,
non-screen capture, quizzes etc. This makes life a lot easier.
2) Create your own buttons and captions. The standard ones
are pretty ordinary, and it's hard to get a slick looking style
happening with the standard captions. They are pretty easy to
create (search for add print button to learn how to create
buttons). There should instructions on how to customise captions
somewhere on this forum. Customising means that you can also use
words, symbols, colours unique to your organisation.
3) Google elearning providers. Most use captivate and will
allow you to open samples or temporarily view selected modules.
This will give you great insight on what not to do and some good
ideas on what works well.
4) Timings: Using the above research, I got others to
complete the sample modules to get a feel for timings. The results
were clear, 10 mins good, 15 mins okay, 20 mins kind of okay, 30
mins bad, bad, bad. It's truly better to have a learner complete
2-3 short modules in 30 mins than one big monster. The other
benefit is that shorter files equal smaller size.
5) Narration: It's best to narrate each slide individually
(particularly for screen capture slides). You are more likely to
get it right on the first take, it's easier to edit and you don't
have to re-record the whole thing if you need to update it in
future. To get a slicker effect, use at least two voices: one male,
one female and use slightly different accents.
6) Screen capture slides: If you are recording filling out
long window based databse pages where the compulsory fields are
marked (eg. with a red asterisk) - you don't need to show how to
fill out every field. It's much easier for the learner (and you) to
show how to fill out the first few fields, then fade the screen
capture out, fade the end of the form in with the instructions on
what to do next. This will reduce your file size. In one of my
forms, this meant the removal of about 18 slides!
7) Auto captions: they are verbose (eg. 'Click on Print
Button' instead of 'Click Print'; 'Select the Print Preview item'
instead of 'Select Print Preview'). You have to edit them.
8) PC training syntax: Buttons and hyperlinks should normally
be 'click'; selections from drop down boxes or file lists are
normally 'select': Captivate sometimes mixes them up. Instructions
should always be written in the correct order: eg. Good: Click
'File', Select 'Print Preview'; Bad: Select 'Print Preview' from
the 'File Menu'. Button names, hyperlinks, selections are normally
written in bold
9) Instruction syntax: should always be written in an active
voice: eg. 'Click Options to open the printer menu' instead of
'When the Options button is clicked on, the printer menu will open'
10) Break all modules into chapters. Frame each chapter with
a chapter slide. It's also a good idea to show the Index page
before each chapter slide with a progress indicator (I use an
animated arrow to flash next to the name of the next chapter), I
use a start button rather a 'next' button for the start of each
chapter. You should always have a module overview with the purpose
of the course and a summary slide which states what was covered and
they have complete the module.
11) Put a transparent click button somewhere on each slide.
Set the properties of the click box to take the learner back to the
start of the current chapter by pressing F2. This allows them to
jump back to the start of their chapter at any time. You can also
do a similar thing on the index pages which jumps them to another
chapter.
12) Recording video capture: best to do it at normal speed
and be concious of where your mouse is. Minimise your clicks. Most
people (until they start working with captivate) are sloppy with
their mouse and you end up with lots of unnecessarily slides that
you have to delete out. The speed will default to how you recorded
it and this will reduce the amount of time you spend on changing
timings.
13) Captions: My rule of thumb is minimum of 4 seconds - and
longer depending on the amount of words. Eg. Click 'Print Preview'
is 4 seconds, a paragraph is longer. If you creating knowledge
based modules, make the timing long (eg. 2-3 minutes) and put in a
next button so that the learner can click when they are ready.
Also, narration means the slides will normally be slightly longer.
14) Be creative: Capitvate is desk bound. There are some
learners that just don't respond no matter how interactive
Captivate can be. Incorporate non-captivate and desk free
activities. Eg. As part of our OHS module, there is an activity
where the learner has to print off the floor plan, and then wander
around the floor marking on th emap key items such as: fire exits;
first aid kit, broom and mop cupboard, stationary cupboard, etc.
Good luck!

Best Practices for Setting up a Windows 2012 R2 STD Domain Controller in a Remote Site

So I'm looking for an article or writeup similar to the "Adding Domain Controllers in Remote Sites" TechNet article but for Windows Server 2012 STD R2. Here is my scenario:
1. I want to setup the domain controller at Site A where the primary domain controller is located. The primary domain controller is Windows Server 2008 R2.
2. Once the DC is setup I plan on leaving it on our network for a few days before shipping it to remote Site B for installation
Other key items:
1. The remote Site B will have a different IP range than Site A but will be connected to Site A via a single VPN tunnel. All the DCs that replicate with each other are on the same domain.
2. The 2012 DC that I setup for Site B (same domain in same forest) will be a DHCP, DNS, and WSUS server all replicating to the primary DC at Site A
Questions:
1. What items can I setup while it's at Site A without effecting or conflicting with the existing network and domain controller? Can I setup a scope once the DHCP role is added?
2. All of our DCs replicate through Sites and Services, do I have to manually add this to our primary DC for the new DC going to remote Site B? Or when does this happen automatically when I promote the DC?
All and all I'm just looking for a list of Best Practices for 2012 or a Step by Step Guide. Any help would be appreciated.

Hi,
Thanks for your posting.
When you install AD DS in the hub or staging site, disconnect the installed domain controller, and then ship the computer to the remote site, you are disconnecting a viable domain controller from the replication topology.
For more and detail information, please refer to:
Best Practices for Adding Domain Controllers in Remote Sites
http://technet.microsoft.com/en-us/library/cc794962(v=ws.10).aspx
Regards.
Vivian Wang

Best practice for mouseless ADF applications

I am developing an ADF application where the users do not want to use the mouse.
So I would like to know if there are a best practice for this?
I am already using the accessKey functionality and subforms defaultCommand
But I have had problems setting focus to objects on a page like tables. I would like a button to return the focus to the table after it has made the command like delete.
I have implemented a solution where I have found inspiration several threads and other webpages (see below).
Is this solution okay?
Are there any problems with it?
I would also like to know if there are better pathways to go like
out of the box solutions,
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/79-global-template-button-strategy-360139.pdf (are there an example implementation?), or
http://one-size-doesnt-fit-all.blogspot.dk/2010/11/adf-ui-shell-supporting-global-hotkeys.html
in advance thanks
Inspiration webpages
https://blogs.oracle.com/jdevotnharvest/entry/how_to_programmatically_set_focus
http://technology.amis.nl/2008/01/04/adf-11g-rich-faces-focus-on-field-after-button-press-or-ppr-including-javascript-in-ppr-response-and-clientlisteners-client-side-programming-in-adf-faces-rich-client-components-part-2/
how to Commit table by writting Java code in Managed Bean?
Table does not refresh and getting error as UIComponent is Null
A short description of the solution:
(jdeveloper version 11.1.1.2.0)
--- Example where I use onSetFocus in jsff page
<af:commandButton text="#{hrsusuiBundle.FOCUS}" id="cb10"
partialSubmit="true" accessKey="f"
shortDesc="Alt+Shift+F"
actionListener="#{managedBean_clientUtils.onSetFocus}">
<af:clientAttribute name="focusField" value="t1"/>
</af:commandButton>
--- Examples where I use doTableActionAndSetFocus in jsff page
--- There have to be a binding in the jsff page to delete, commit and rollback
<af:commandButton text="#{hrsusuiBundle.DELETE}" id="cb4"
accessKey="x"
shortDesc="Alt+Shift+X"
partialSubmit="true"
actionListener="#{managedBean_clientUtils.doTableActionAndSetFocus}">
<af:clientAttribute name="focusField" value="t1"/>
<af:clientAttribute name="actionField" value="Delete"/>
</af:commandButton>
<af:commandButton text="#{hrsusuiBundle.COMMIT}" id="cb5"
accessKey="s" shortDesc="Alt+Shift+S"
partialSubmit="true"
actionListener="#{managedBean_clientUtils.doTableActionAndSetFocus}">
<af:clientAttribute name="focusField" value="t1"/>
<af:clientAttribute name="actionField" value="Commit"/>
</af:commandButton>
<af:commandButton text="#{hrsusuiBundle.ROLLBACK}" id="cb6"
accessKey="z" shortDesc="Alt+Shift+Z"
partialSubmit="true"
actionListener="#{managedBean_clientUtils.doTableActionAndSetFocus}"
immediate="true">
<af:resetActionListener/>
<af:clientAttribute name="focusField" value="t1"/>
<af:clientAttribute name="actionField" value="Rollback"/>
</af:commandButton>
--- This is the java class I use
--- It is published in adfc-config.xml as a request scope managedbean
public class ClientUtils {
public ClientUtils() {
public void doTableActionAndSetFocus(ActionEvent event) {
RichCommandButton rcb = (RichCommandButton)event.getSource();
String focusOn = (String)rcb.getAttributes().get("focusField");
String actionToDo = (String)rcb.getAttributes().get("actionField");
UIComponent component = null;
String clientId = null;
component = JSFUtils.findComponentInRoot(focusOn);
clientId = component.getClientId(JSFUtils.getFacesContext());
if ( "Delete".equals(actionToDo) || "Commit".equals(actionToDo) || "Rollback".equals(actionToDo) ){
BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();
OperationBinding operationBinding = bindings.getOperationBinding(actionToDo);
Object result = operationBinding.execute();
AdfFacesContext.getCurrentInstance().addPartialTarget(component);
if (clientId != null) {
makeSetFocusJavaScript(clientId);
public static String onSetFocus(ActionEvent event) {
RichCommandButton rcb = (RichCommandButton)event.getSource();
String focusOn = (String)rcb.getAttributes().get("focusField");
String clientId = null;
if (focusOn.contains(":")) {
clientId = focusOn;
} else {
clientId = findComponentsClientIdInRoot(focusOn);
if (clientId != null) {
makeSetFocusJavaScript(clientId);
return null;
private static void writeJavaScriptToClient(String script) {
FacesContext fctx = FacesContext.getCurrentInstance();
ExtendedRenderKitService erks = null;
erks = Service.getRenderKitService(fctx, ExtendedRenderKitService.class);
erks.addScript(fctx, script);
public static void makeSetFocusJavaScript(String clientId) {
if (clientId != null) {
StringBuilder script = new StringBuilder();
//use client id to ensure component is found if located in
//naming container
script.append("var textInput = ");
script.append("AdfPage.PAGE.findComponentByAbsoluteId");
script.append ("('"+clientId+"');");
script.append("if(textInput != null){");
script.append("textInput.focus();");
script.append("}");
writeJavaScriptToClient(script.toString());
public static String findComponentsClientIdInRoot(String id) {
UIComponent component = null;
String clientId = null;
component = JSFUtils.findComponentInRoot(id);
clientId = component.getClientId(JSFUtils.getFacesContext());
return clientId;
}

Hi,
I am developing an ADF application where the users do not want to use the mouse. So I would like to know if there are a best practice for this?
Well HTML (and this is the user interface you see) follows a tab index navigation that you follow with "tab" and "shift+tab". Anything else is a short cut for which you use mnemonics (as you already do) or shortcuts (explained in http://one-size-doesnt-fit-all.blogspot.dk/2010/11/adf-ui-shell-supporting-global-hotkeys.html). There is a distinction to make between non-web environments (which I think you and your users have abackground in) and client desktop environments. Browsers block some keyboard functionality for their own purpose. So you may have to find a list of keys first that work across browsers. Unlike desktop clients, which allow you to "press a button" without the button to take focus, this cannot be done on the web. So you need to be clever here, avoiding buttons at all.
The following paper is about JavaScript in ADF and explains the basics for what Chris Muir explains in : http://one-size-doesnt-fit-all.blogspot.dk/2010/11/adf-ui-shell-supporting-global-hotkeys.html
http://www.oracle.com/technetwork/developer-tools/jdev/1-2011-javascript-302460.pdf
It has the outline for how to register short cut keys that perform a specific action (e.g. register ctrl+d to delete the current row you are on, or press F11 to execute a query (similar to Oracle Forms frmres files)). However, be aware that this includes some code you have to write (actually quite some code to be honest).
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/79-global-template-button-strategy-360139.pdf (are there an example implementation?), or
http://one-size-doesnt-fit-all.blogspot.dk/2010/11/adf-ui-shell-supporting-global-hotkeys.html
Actually these are implementations as they come with example code for you to use and customize, do they? So what is this question asking for more ? Also note that global buttons don't quite have anything in common with the question you asked. I assume you want to see it as an implementation of the Forms toolbar that operates on the form or table the focus is in. This however does not work for the web as there is nothing that keeps track of which component has a focus and to what iterator (data block) it belongs. This would involve even more coding (though possibly doable)
Frank

Best practice for PK and indexes?

Dear All,
What is the best practice for making Primary Key and indexes? Should we keep them in the same tablespace as table or should we create a seperate tableapce for all indexes and Primary Key? Please note I am talking about a table that has 21milion rows at the moment and increasing 10k to 20k rows daily. This table is also heavily involved in daily reports and causing slow performance. Currently the complete table with all associated objects such as indexes and PK is stored in one seperate tablespace. If my way is right then please advise me how can I improve the performance of retrival or DML operation on this table?
Thanks in advance..
Zia Shareef

Well, thanks for valueable advices... I am using Oracle 8i and let me tell you exact problem...
My billing database has two major tables having almost 21 millions rows each... one has collection data and other one for invoices... many reports are showing the data with the joining of Customer + Collection + Invoices tables.
There are 5 common fields in between invoices(reading) and collection tables
YEAR, MONTH, AREA_CODE, CONS_CODE, BILL_TYPE(adtl)
My one of batch process has following update and it is VERY VERY SLOW:
UPDATE reading r
SET bamount (SELECT sum(camount)
FROM collection cl
WHERE r.ryear = cl.byear
AND r.rmonth = cl.bmonth
AND r.area_code = cl.area_code
AND r.cons_code = cl.cons_code
AND r.adtl = cl.adtl)
WHERE area_code = 1
tentatively area_code(1) is having 20,000 consumers
each consuemr may have 72 invoices and against these invoices it may have 200 rows in collection tables (system have provision to record partial payment against one invoice)
NOTE: Please note presently my process is based on cursors so the above query runs for one consumer at one time but just for giving an idea I have made it for whole area.
Mr. Yingkuan, can you please tell me how can I check that the table' statistics is not current and how can I make it current. Is it really effect performance?

Best practice for "Quantity" field in Asset Master

Hi
I want to know what is the best practice for "Quantity field" in asset master. It should be made displayed only or required field in Asset Master creation.
Initially I made this field as required entry. So user entered 1 quantity. At the time of posting F-90, he again entered quantity. So my quantity in asset master got increased. Hence i decided to make that field display only in asset master creation.
Now i made that field as display only in asset master creation. At the time of posting F-90, that quantity field is not coming only. I check my field status group for posting key as well as GL account. Its optional field. Inspite of that user is able to make entry in F-90. Now quantity field is '0' only in asset master even though there is some value in asset.
Please help what is the best practice wrt quantity field. Should be open in asset master or it should be display only.

Hi:
SAP Standard does not recommend you to update quantity field in asset master data. Just leave the Qty Field Blank , just mention the Unit of Measure as EA. While you post acquisition through F-90 or MIGO this field will get updated in Asset master data automatically. Hope this will help you.
Regards

Best Practice for Extracting a Single Value from Oracle Table

I'm using Oracle Database 11g Release 11.2.0.3.0.
I'd like to know the best practice for doing something like this in a PL/SQL block:
DECLARE
    v_student_id    student.student_id%TYPE;
BEGIN
    SELECT student_id
    INTO    v_student_id
    FROM    student
    WHERE   last_name = 'Smith'
    AND     ROWNUM = 1;
END;
Of course, the problem here is that when there is no hit, the NO_DATA_FOUND exception is raised, which halts execution. So what if I want to continue in spite of the exception?
Yes, I could create a nested block with EXCEPTION section, etc., but that seems clunky for what seems to be a very simple task.
I've also seen this handled like this:
DECLARE
    v_student_id    student.student_id%TYPE;
    CURSOR c_student_id IS
        SELECT student_id
        FROM    student
        WHERE   last_name = 'Smith'
        AND     ROWNUM = 1;
BEGIN
    OPEN c_student_id;
    FETCH c_student_id INTO v_student_id;
    IF c_student_id%NOTFOUND THEN
        DBMS_OUTPUT.PUT_LINE('not found');
    ELSE
        (do stuff)
    END IF;
    CLOSE c_student_id;
END;
But this still seems like killing an ant with a sledge hammer.
What's the best way?
Thanks for any help you can give.
Wayne

Do not design in order to avoid exceptions. Do not code in order to avoid exceptions.
Exceptions are good. Damn good. As it allows you to catch an unexpected process branch, where execution did not go as planned and coded.
Trying to avoid exceptions is just plain bloody stupid.
As for you specific problem. When the SQL fails to find a row and a value to return, what then? This is unexpected - if you did not want a value, you would not have coded the SQL to find a value. So the SQL not finding a value is an exception to what you intend with your code. And you need to decide what to do with that exception.
How to implement it. The #1 rule in software engineering - modularisation.
E.g.
create or replace function FindSomething( name varchar2 ) return foo.col1%type is
id foo.col1%type;
begin
select col1 into id from foo where col2 = upper(name);
return( id );
exception when NOT_FOUND then
return( null );
end;
And that is your problem. Modularisation. You are not considering it.
And not the only problem mind you. Seems like your keyboard has a stuck capslock key. Writing code in all uppercase is just as bloody silly as trying to avoid exceptions.

In the Begining it's Flat Files - Best Practice for Getting Flat File Data

I probably should have posed this question here before I delved into writing Java to get data for reports, but better late than never.
Our ERP is written in COBOL. We have a third party ODBC which allows us to access data using a version of SQL. I have several Java sources compiled in my database that access the data and return something relevant. The Java sources are written in a procedural style rather than taking advantage of object oriented programming with attributes and methods.
Now that I am becoming more comfortable with the Java language, I would greatly appreciate any feedback as to best practices for incorporating Java into my database.
My guess is that it would be helpful to model the ERP "tables" with Java classes that would have attributes, which correspond to the fields, and methods to return the attributes in an appropriate way. Does that sound reasonable? If so, is there a way to automate the task of modeling the tables? If not reasonable, what would you recommend?
Thanks,
Gregory

Brother wrote:
I probably should have posed this question here before I delved into writing Java to get data for reports, but better late than never.
Our ERP is written in COBOL. We have a third party ODBC which allows us to access data using a version of SQL. I have several Java sources compiled in my database that access the data and return something relevant. The Java sources are written in a procedural style rather than taking advantage of object oriented programming with attributes and methods.
OO is a choice not a mandate. Using Java in a procedural way is certainly not ideal but given that it is existing code I would look more into whether is well written procedural code rather than looking at the lack of OO.
Now that I am becoming more comfortable with the Java language, I would greatly appreciate any feedback as to best practices for incorporating Java into my database.
My guess is that it would be helpful to model the ERP "tables" with Java classes that would have attributes, which correspond to the fields, and methods to return the attributes in an appropriate way. Does that sound reasonable? If so, is there a way to automate the task of modeling the tables? If not reasonable, what would you recommend?Normally you create a data model driven by business need. You then implement using whatever means seem expedient in terms of other business constraints to closely model that data model.
It is often the case that there is a strong correlation between data models and tables but certainly in my experience it is rare when there are not other needs driven by the data model (such as how foreign keys and link tables are implemented and used.)

Best practice for including additional DLLs/data files with plug-in

Hi,
Let's say I'm writing a plug-in which calls code in additional DLLs, and I want to ship these DLLs as part of the plug-in. I'd like to know what is considered "best practice" in terms of whether this is ok (assuming of course that the un-installer is set up to remove them correctly), and if so, where is the best place to put the DLLs.
Is it considered ok at all to ship additional DLLs, or should I try and statically link everything?
If it's ok to ship additional DLLs, should I install them in the same folder as the plug-in DLL (e.g. the .8BF or whatever), in a subfolder of the plug-in folder or somewhere else?
(I have the same question about shipping additional files too, such as data or resource files.)
Thanks
-Matthew

Brother wrote:
I probably should have posed this question here before I delved into writing Java to get data for reports, but better late than never.
Our ERP is written in COBOL. We have a third party ODBC which allows us to access data using a version of SQL. I have several Java sources compiled in my database that access the data and return something relevant. The Java sources are written in a procedural style rather than taking advantage of object oriented programming with attributes and methods.
OO is a choice not a mandate. Using Java in a procedural way is certainly not ideal but given that it is existing code I would look more into whether is well written procedural code rather than looking at the lack of OO.
Now that I am becoming more comfortable with the Java language, I would greatly appreciate any feedback as to best practices for incorporating Java into my database.
My guess is that it would be helpful to model the ERP "tables" with Java classes that would have attributes, which correspond to the fields, and methods to return the attributes in an appropriate way. Does that sound reasonable? If so, is there a way to automate the task of modeling the tables? If not reasonable, what would you recommend?Normally you create a data model driven by business need. You then implement using whatever means seem expedient in terms of other business constraints to closely model that data model.
It is often the case that there is a strong correlation between data models and tables but certainly in my experience it is rare when there are not other needs driven by the data model (such as how foreign keys and link tables are implemented and used.)

Best Practice for Multiple iTunes and One Account?

My wife and I share our account for our iPhone Applications and Songs in iTunes.
Can someone point me to a topic that covers a best practice for multiple iTunes syncing?
I travel a lot and keep my iPhone synced to my Macbook Pro while she uses the workstation at home to sync to. We keep the addresses and contacts and calendars synced through MobileMe, however, I'm trying to find the best way of pushing applications and songs I've bought over to the other PC so they're still around while I'm traveling for her to sync with.
Thoughts?

Hi Steve,
Might be trying for solution for a long time, If i understood your question clear let me clarify you few points.
You are trying to access the bex query which is designed with the exit's in the background based on the logic and trying to call the entire dimensions and key-figures in a single connection. Then you are trying to map those data in the charts.
Steve, try to make more connections based upon the logic and split them. use the same query but split them by sales per customer group, sales per day, sales per week by making three different connections and try. You can merge the prompts from all connections.
Hope this Helps!!!
Sorry if i misunderstood your question.
--SumanT

Best practice for backing bean population? (also, ActionListener RANT)

Hello,
I am about 3/4 of the way through development of a small to medium size JSF application. Sometimes I really like JSF, but much of the time I am left puzzled or frustrated for hours trying to find workarounds to JSF's bugs/glitches and design flaws.
For example, early on, I was impressed with how easily it was to invoke a method from a page using an actionlistener. Now that I'm actually building things with JSF, the actionlistener funtionality still seems cool, but incredibly half baked. I find myself using request parameters LIKE CRAZY to work around the fact that JSF doesnt support passing parameters directly to backing bean methods. This feels awkward and wrong considering the fact that JSF is intended to abstract the HTTP underpinnings. To add insult to injury, I often have to iterate through ALL of the request parameters looking for one that has an id with an ending matching my desired property name (since JSF appends it's own crap to the beginning). I don't like doing things in a hacky way. This seems very hacky, and I feel dirty doing it.
So, my first question is, what is the best practice for populating backing beans??? How do others accomplish this. I can think of several other approaches, but none feel less hacky.
Second, are there plans in the next spec (please say there are) to allow parameters to be passed to backing bean methods? If not, WHY THE HECK NOT?
Even though JSF expert group people have been conspicuously absent from this forum of late, I'd really appreciate responses from you as well.
Thank you for your thoughts.

Hi BrownBear,
I've been using JSF for about 6 months now and I'd be glade to help as much as I can.
Concerning parameters, I'm not sure what your issue is but I use the f:param tag to pass them. If you could post an example of what you are trying to do, I could see exactly what your issue is. Maybe the f:param can't help you.
As for best practice for populating backing beans, I personaly try to let JSF do as much as possible. For example, if I have a backing bean with five properties, I make sure that they all are on the JSP page the bean serves. If one of the property is just there as an Id like, lets say, a Person ID (DB row key), then I put it on my JSP page as a hidden input field. I do the same with the properties that only for display, if I want them to be back in my bean when request comesback.
Hope this help some how. Please, feel free to ask specific questions related to your specific problem and I monitor this post and trnasfer to you the ;little JSF experience I have.
I'm pretty happy with JSF as it is but it sure needs improvements. :) What the heck, it's version 1.01 after all, and the next release should be a great one with the integration of JSTL.
Cheers

Best Practice for IKE keys

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