Why shall we go for views?

What are the situations where we can go for views instead of joins and why?
Regards,
MD.

Hi MD,
Views are motly advisable to use regarding the performance issue.
Joins reduce the performance because it takes lot of time to retrieve the data.
Its advisable not to use JOINS for more than 2 or 3 tables. 2 tables itself would reduce the performance.
Instead, use for all entries and you can sort the table and use the Read..table to read the entries.
If you are using FOR ALL ENTRIES and need to exclude some entries, then instead of using the Negative stmts like , >=, <= , select all entries and then you can delete the entries which do not match your criteria from the internal table.
Inner Join VS Outer Join:
TABEL1 inner join TABLE2:
only entries found in TABLE1 and TABLE2 are the result.
TABEL1 outher join TABLE2:
all entries found in TABLE1 and, if found the corresponding data from TABLE2 are the result.
For inner and outer join see the below thread:
difference..inner join and outer join
Views : Data about an application object is often distributed on several tables. By defining a view, you can define an application-dependent view that combines this data. The structure of such a view is defined by specifying the tables and fields used in the view. Fields that are not required can be hidden, thereby minimizing interfaces. A view can be used in ABAP programs for data selection.
For View see the below thread:
Regarding Creating views
Reward Points if Useful

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Baskaran, PP consultant, Rajesha:
Thank you for replies
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Daniel,
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Why shall we choose Z10 ?

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4....
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Hi MD,
Views are motly advisable to use regarding the performance issue.
Joins reduce the performance because it takes lot of time to retrieve the data.
Its advisable not to use JOINS for more than 2 or 3 tables. 2 tables itself would reduce the performance.
Instead, use for all entries and you can sort the table and use the Read..table to read the entries.
If you are using FOR ALL ENTRIES and need to exclude some entries, then instead of using the Negative stmts like , >=, <= , select all entries and then you can delete the entries which do not match your criteria from the internal table.
Inner Join VS Outer Join:
TABEL1 inner join TABLE2:
only entries found in TABLE1 and TABLE2 are the result.
TABEL1 outher join TABLE2:
all entries found in TABLE1 and, if found the corresponding data from TABLE2 are the result.
For inner and outer join see the below thread:
difference..inner join and outer join
Views : Data about an application object is often distributed on several tables. By defining a view, you can define an application-dependent view that combines this data. The structure of such a view is defined by specifying the tables and fields used in the view. Fields that are not required can be hidden, thereby minimizing interfaces. A view can be used in ABAP programs for data selection.
For View see the below thread:
Regarding Creating views
Reward Points if Useful

How to install an external editor in version 2.1.1.64 for viewing XMLType

I have a question about viewing XMLType in version 2.1.1.64
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Kind regards,
Erwin Snippert

This is the case:
SQL Developer version 2.1.1.64
Oracle client 11gR2
Oracle Database 9.2.0.6.
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Click on the data tab on the right side of the screen and a part of the xml-data is visible of that XMLType column.
Perhaps my expectations are too high, i want to see the all XML data in a structured and readable way.
I have tried to accomplish this by double clicking on the particular data in the XMLType column. This results in an pencil icon on the right side of the data.
Click on this icon and a popup window appears with the 'Edit Value' titel. This windows shows the xml data as one string, not very readable.
I have the oppurtunity to click on an 'External Editor' button. It seems to me that i can use this button to see/edit the data with an external editor.
If you click on this button, a dialog appears with the following message : 'The Mime Type of selected object is currently not supported. Please see the complete list of supported Mime Type and extension in Tools>Preferences>External Editor panel.'
I have 2 questions, perhaps you can put me in the right direction :
- Why can't SQL developer standard display XML in a structured/readable way?
- How must SQL Developer be configured to use an external editor for displaying XML data from XMLType columns?
Kind Regards, Erwin

Cannot preview filetype please download the file for viewing and garbled text on a downloaded image

Dear Madam or Sir,
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I downloaded an image, which purports to be a .pdf, from the Royal Mail Track & Trace web facility using my Samsung S5. The text that I expect to see might as well be hieroglyphics for all its similarity to text. Please advise.
Regards,
Ron Platt
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Hi Laura,
I have found the solution to be:
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I have a feeling that there is a glitch somewhere, because after I have
opened a number of .pdf files stored on my PC, and irrespective of whether
I have closed them prior to opening the next .pdf file or left them open,
Acrobat Reader will display (Not responding) in the window title bar. The
"number of files" equates to less than 10. I, then, click on the X at the
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I have described the above before and received the usual "it cannot be
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in that online software package offer.
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Why not use interfaces for constants?

Hi,
I have been getting conflicting views about why not use interfaces for constants?
Can anyone shed some light on it?
Piyush

How so?
If the constants are only used in a single classhow
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(Ignoring the a type safe enumeration of course.)Well, mainly for readability. Suppose that you have a
web application which has a servlet class
"RedirectServlet", which takes a variable to redirect
to a given JSP file. In the JSP files, you want to
create forms which take this servlet as their action.
You could of course put all these "redirect"
constants in the RedirectServlet itself, but then
it's kind of weird that you have to import a
servlet in your jsp file to include these constants
and to be able to write
<form action="servlet/RedirectServlet?key=<%=
RedirectServlet.HOMEPAGE %>> or so.
Instead, you could create an interface called
"RedirectConstants", and then your servlet
RedirectServlet could implement this interface. Then
your JSP can also access these constants via this
interface.
But then again, this is merely a matter of style, I
fully agree that there is never a real _need_ to put
constants in a separate structure if they're only used
in a single class.Are you claiming that your example above is a single class?

I want to download free apps for iphone 4s but when downloading it is asking for payment info. the application are free but why it is asking for purchase details...please help me...

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In iTunes, click "Store", sign in with your Apple I.D. After singing in, click "Store" again, select "View my Account", re-enter your password and your account info will be displayed.
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OS X Mavericks is offered as a free download, why is apple asking for a credit card number?

Can someone tell me why apple is asking for a credit card number to download the Free OS X Mavericks?

Yes. This is what it says.
Resolution
You might not be able to see or select the None payment option for one of these reasons. If you don’t want to use a credit card, you can use another form of payment, such as a gift card.
If you have an unpaid balance or payment due
You can't select None as your payment type until you pay your balance. To see which order you need to pay for,view your purchase history on a Mac or PC. When you sign in to the store, you might see a message that there was a billing issue with your last order. Click the Billing Info button to see the order.
After you pay for the order, you can change your payment information to None.
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If you’re using the store for the first time with an existing Apple ID, you must provide a payment method. After you create the account, you can change your payment information to None.
If you’re creating a new Apple ID, you might be able to create an account without entering your credit card details.
If you changed your country or region
When you change the country or region of an existing Apple ID, you must provide a payment method and update your billing options. If you want to remove your payment method after you change the country or region, you canchange your payment information to None.
She hasn't changed countries nor regions, she's not using the either store for the first time, nor does she owe anything. She doesn't have a gift card. She's just a person without a credit card. She did have one, and now she doesn't.

Why plugin/addon concept for Runtime Shared Libraries not implemented in Flex?

Hi All,
I am posting my refined query here in continuation to my post Fundamental and crucial drawback with Flex in Flex India Community as my last refined query was left unanswered though I feel there is a definite sense of purpose to it.
Why plugin/addon concept for Runtime Shared Libraries not implemented in Flex?
Here is why I feel it should be implemented in Flex.
Though Runtime Shared Libraries SWF file can be cached in the client browser and just need to be loaded only once when the user access a Flex application for the first time,
"40-60% of daily visitors to your site come in with an empty cache. Making your page fast for these first time visitors is key to a better user experience."
Qouting from 'Best Practices for Speeding Up Your Web Site' as described in Tenni Theurer's blog post Browser Cache Usage - Exposed!
While still retaining the cacheability of RSL's for compatibility reasons, flex should give the flexibility and thereby enhance performance by offering RSL's as a plugin/addon.
Looking for your comments and insigts on the same.
Thanks,
Ram Manoj Kongara.

I finally skimmed through the links you posted. The terms plugin and addon
are not in either of the articles so I'm unclear what you are suggesting.
The topic seems to be about application performance. The Flash Player
supports a cross-domain cache of actionscript libraries separate from the
browser cache. Each official release of Flex contains a set of these
libraries. As new Flash Player versions or new Flex versions are released,
and users visit sites utilizing those new versions, the browser picks up the
latest Flash Player and the Flash Player picks up the latest Flex libraries.
These days, it only takes a few months for a new Flash Player to achieve
major saturation in browsers although it still takes a bit longer for Flex
libraries to achieve saturation.
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to leverage these libraries, you will find that the total download from your
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although you might want to serve the libraries in case they are not already
in the cache if you see high latency to the Adobe servers on a cache miss.
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normal good application development practices. Flex provides features such
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boundaries within your application and leverage these features.
If I have not addressed your concerns please describe your issue in more
detail.
Alex Harui
Flex SDK Team
Adobe System, Inc.
http://blogs.adobe.com/aharui

Excel Database ready for viewing

Hi all hope you can advise me.
I have an Excel Database that I want viewers of my website to
be able to search.I found the
http://www.wrensoft.com/zoom/index.html
to use for the searching.
I want to know how best to structure the database for viewing
purposes on the web.What format etc.
What I am after is to have a "search the database page" that
when a search is done elements of the database is brought out in
the results.I would like each search result to have it's own page
so that only the specified search results comes up and not any
other.
I'm not quite sure that what I want can be done from this
excel doc.My thoughts are and I may be wrong is that this being a
simple .xls doc. (Excel doc) doc the results will bring out
highlighted parts that were relevant to the viewer's search.
Any help/advice would be great.
Thanks Mark

> I have XP Home 5.1.2600 service pack 2
XP Home does not include a webserver. If you wanted to
locally test
server-scripted pages, you would have to install Apache.
> Do I actually have to have this on my PC.Why do I need a
web server on my
> PC ?
If you want to locally test pages that interact with a
database (whether
Excel, Access, or MySQL), you would need a local webserver.
Without one,
the best you could do would be to upload pages and browse to
them. If your
pages are static HTML only, then your local preview will work
fine, and you
would have no need for a local webserver.
> I want a database full on information.Tha database will
sit hidden from
> web
> visitors.I will put a search Form on the web page for
people to search the
> Database.
Unless you want to work in PHP and install Apache and MySQL
locally, then
you are hosed. This is not a hard thing to do. It's how I am
configured.
> Can I have a few
> levels in the database I.E. a more detailed page as I
could in HTML. using
> links. from page to page.
Sure.
> The rason I'm not using HTML. in the first place is
because the Data will
> be
> quite vast and I don't want to get lost in thousands of
links.
You couldn't practically use HTML for this anyhow.
> Am I going down the right path with PHP / MYSQL and so
on.
Yes. Get David Powers' excellent book on DWCS3 and PHP/MySQL,
and get busy.
He gives complete instructions for setting up your system.
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
==================
"markie12345" <[email protected]> wrote in
message
news:[email protected]...
> Hi Murray
>
> I have XP Home 5.1.2600 service pack 2
>
> Do I actually have to have this on my PC.Why do I need a
web server on my
> PC ?
>
> To tell you what I'm doing again just to make sure I am
going down the
> right
> road for what goal I am aiming to.
>
> I want a database full on information.Tha database will
sit hidden from
> web
> visitors.I will put a search Form on the web page for
people to search the
> Database.
>
> The goal is to have the results come up in another
page.Can I have a few
> levels in the database I.E. a more detailed page as I
could in HTML. using
> links. from page to page.
>
> The rason I'm not using HTML. in the first place is
because the Data will
> be
> quite vast and I don't want to get lost in thousands of
links.
>
> Am I going down the right path with PHP / MYSQL and so
on.
>
> Kind regards mark
>

Why Should I go for 11g

Since my database and application running well for long time and not major problems then why should I go for 11g. Why not stick to 10g more 2 to 4 years.
Share your ideas....

Hi there,
I dont think that it matters on this too much that your applications and db are running ( or not running ) fine ovr a version x so you should migrate to y version.I have seen shops still running on 817 also and there are many who have opted for 11g also. There are alot of factors which effect the decision.I wont recommend anyone at the moment to go for 11g as its the first release and the R1 product is not usualy so stable.If I really wish to upgrade , I shall wait for atleast 11gR2 to come.
If you are happy with the performance of 10g and are stable than I dont thikn that you have any drastic need for upgrade to 11g any time soon.
Just my 2 cents....
Aman....

Why doesn't Mail for IOS show sent items?

Why doesn't Mail for IOS show sent items with an IMAP server account. Everything else works okay but there is two sent directories and no contant in any of them ...
Trouble is the same in both iPhone4 and iPad.
Exactly the same account shows everything on my Macintosh. Including Sent items.

Using the method described above I see outgoing messages that were sent from Mail on my iMac in the correct mailboxes for 2 different MobileMe accounts.
You seem to be having and issue where your database/setting are corrupted if your messages are in the wrong outbox. I would suggest deleting the accounts from your iPad and the reconfiguring them.
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Message was edited by: J D Knight III (fixed page number)

Why can't I create view in Analytic Workspace?

Why can't I create view in Analytic Workspace?

Hi There,
1) This is the OBIEE forum, by the sounds of your question, which doesnt have much detail, Im guessing you want the OLAP forum for AWM related issues.
2) Trying to help, I guess your trying to create the AW cube views, what version of AWM are you using ? It was first provided as a plug in but Im pretty sure the latest version of AWM ships with the functionality.
BTW I'd try posting in here : OLAP

Why shall we go for views?

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