Booking App problems

Does anyone have any ideas or suggestions for how I can deliver a time booking application?
Very simply, I am designing an application to replace a paper based car pool booking system.
A single car can be booked from 08:00 to 18:00 in half hour intervals.
Here is an example of a potential row in my booking table:-
ID        CAR_ID        START        END
1001 CAR-A  08-JAN-08 09:00  08-JAN-08 15:30.
How can I display this....
08:00          available
08:30          available
09:00          booked
09:30          booked
15:00          booked
15:30          available
16:00          available
16:30          available
I have 2 major issues
1. All the 'available' times do not exist in the table because they have not been booked.
How can I do a select on rows that don't exist?
2. How can I use SQL to highlight that 15:30 is free even though it is recorded in the booking row?
To put it another way, 15:30 is held in the row but as it is the END of the booking, 15:30 onwards is still valid therefore available.
I want if possible to avoid populating a table of 'Time slots' holding 08:00 to 18:00 and then doing an outer join on it but I will if that's the best solution.
I also don't want to just populate the booking table with all the slots for every day, for every car, for the next however-long as again this seems like a poor solution.
I've studied various threads about calendar based applications but I haven't found anything useful (or understandable!) and I am using Apex v2 so the existing calendars I have at my disposal don't fulfil the requirements.
Any suggestions would be most welcome.
If anyone needs more clarification on the issue in order to study it please say so. I have tried to keep it simple.
Anyway, I shall go back to banging my head against the wall untill someone more qualified comes up with something!
Thanks
James

Hello
That seems an interesting project. You can use this query to generate all the 30min slices you need, for a specific day (in this example, today):
select times.t
from
(select to_char(trunc(sysdate) + (9/24) + (level-1)*30/24/60, 'dd/mm/yyyy hh24:mi') t
from dual
connect by level <= 18) timesYou can then easily join it to your booking table to identify what slices have been booked or not (it is just a case of meddling with the join clause to solve problem #2).
I hope this helps.
Luis

Similar Messages

  • Latest update doesn't allow disney digital book apps to open. how do I fix it?

    I havea couple of Disney digital books (apps for ipad). I have loaded the latest update to the ipad and now they won't open.  I have deleted them from my ipad and reinstalled them by syncing with my itunes, but still to now avail.  I have also tried to open the app in the app store from my ipad and it still won't open.  Is this a bug in the update?  Is there anything I can do? or have I just lost my money on purchasing the app?  Thanks

    I have the same problem and have taken the same steps as Mrs Chubbs. The problem started since the latest software was updated on my Ipad.

  • Kindle app problem since Lion Installed

    Hi All,
    I think Lion is terriffic, aesthetic disasters aside. Everyting seems to work okay except my Kindle for Mac app.
    When I opened it today all the books under the Home tab were present, correct and readable
    Unfortunately the books in the archived section had all been deleted. I tried re-downloading a couple of them but they did not arrive. I found them elsewhwere on the Amazon site as "pending downloads".
    The problem does not exist on my iPhone. The archived books are still present.
    I don't know if it is Lion or Kindle app problem or both of them.
    Can anyone help?
    Thanks guys :-)
    ugly_dog

    It could be some filepermission problems.
    Run repair filepermissions in diskutility.
    Reboot.
    Remove folder ~/library/application support/kindle
    Remove ~/library/preferences/com.amazon.Kindle.plist
    Remove ~/library/preferences/com.amazon.Kindle.plist.lockfile
    Remove ~/applications/Kindle
    Empty trash
    Reboot again (dont know if this is necessary)
    Go to Amazon website and manage your kindle
    deregister your computer
    Install Kindle from AppStore (not from Amazon)
    Start kindle and register.
    Go to Amazon again.
    Select your items and action deliver to your computer.
    Sync and wait for your items to download.

  • Is there a moving picture book app scam and virus?

    I purchased moving picture book app (free) but then they advertised several books and purchased several to download.  I was charged through ITunes as an in app purchase but then the books never downloaded and when a couple of them did, the screen was blank.  I tried to report the problem but cannot select the purchase to report a problem.  I don't know what happened.  I read several reviews and others have experienced this.  I sent an email to ITunes support but have not received any email back.  What can I do?  The books apps were supposed to be for my child who has autism.  We felt we've been cheated.

    Thanks MRLoon for your reply. I've read the adverts and saw the preview and that's why I decided to purchase the apps but I was unable to play any of the three apps that I downloaded.  I purchased 16 total thinking they would download immediately.  But after trying to download the first three and got nothing, I stopped.  I've already sent an email to the moving picture books app support team five days ago and have not received any feedback or reply.  If you are truly one of the owners, have your support team reply to my email.  I'll send another one today. And please have your people check to see if the current app is compatible with IOS 5. Is there a better working contact number or email for Moving Picture Books app?  Again, I appreciate your reply and any assistance you may provide.  I hope your nephew is doing well.

  • Office Web Apps Server 2013 - Word Web App - Problem with Tab space

    Hello We have Office Web Apps Server 2013 running with SharePoint 2013.  Users Editing a Word document with Office Web Apps, can't use "Tabs", any Word document with Tabs; the tabs are replaced with a single space.
    Has anyone noticed this?  Is this a bug?
    -thanks
    thomas
    -Tom

    Yes, currently the Word Web App does not support
    Tab Keyboard shortcut for editing document content .
    For more information, you can have a look at
    the article:
    http://office.microsoft.com/en-us/office-online-help/keyboard-shortcuts-in-word-online-HA010378332.aspx?CTT=5&origin=HA010380212
    http://social.technet.microsoft.com/Forums/en-US/3f5978d3-67a1-4c8c-981f-32493d72610b/office-web-apps-server-2013-word-web-app-problem-with-tab-space?forum=sharepointgeneral

  • IPad app problems it won't. Let me download apps.it says check billing info I check everything number by number letter by letter

    iPad version 4.2.1 app problems it won't. Let me download apps.it says check billing info I check everything number by number letter by letter it still won't work everything on my billing is correct

    If you had money in your account when you purchased a paid app and Apple didn't claim on the payment to your bank until after the download it maybe that there was insufficient balancce in your account to complete the purchase and therefore you'll need to wait until you have the funds to make the payment, when you have billing issues it won't even let you download free apps.
    If that isn't the case then give iTunes store a call or email them and they can tell you exactly what is wrong with the account

  • My ipad1 won't let me download books,apps or even update apps, it says delete pictures

    My ipad1 won't let me download books,apps or even update apps, it says delete pictures &amp; videos to make room for downloads but I do not have on my iPad pictures or video &amp; I barley have any extra apps!!

    The operating system takes up about 2GB, so that's why your 16 GB iPad has 14 GB capacity.  And if you only have 687mbs left, it means you don't have much space left to add to your iPad.  Do you have lot's of videos/Books/Music/Apps/Pictures on your iPad.  If you do and you want to add more, you're going to have to delete things before you can add more.

  • My iPhone 4S will not connect to the internet properly. It says that it is connected, the App Store won't load apps and I can't get on my face book app. I have tried wifi and my cellular data, neither work. What are some ways to fix this?

    My iPhone will
    not connect to the internet properly. It says that it is connected, the App Store won't load apps and I can't get on my face book app. I have tried wifi and my cellular data, neither work. What are some ways to fix this?

    Try resetting your network settings.
    Settings>Genenal>Reset>Reset Network Settings.

  • I get a message that my ipad and iphone cannot connect to the iTunes store. I have tried to sync books to my iPad and iphone and i get the message that I cannot connect to the iTunes store and thus cannot sync a book to my books app. Why?

    I get a message that my ipad 2 and iphone 5 cannot connect to the itunes store when I try to sync a book to my book app. Although, when I click "store" both are able to access the itunes store. Why is this? Also I tried to open a book that was synced and a message that I did not have enough memory to load this book popped up--when I know that I have well over 40gb of memory left in my ipad and over 16gb left in my iphone. The message that I cannot connect to the itunes store is strange that it offers no option and I have to hit OK to get out and use my ipad or iphone.

    Try logging out of your account on the iPad by tapping on your id in Settings > Store and then log back in and see if it then works.
    If that doesn't solve it then what has worked for some people is going into Settings > General > Date & Time and changing the date to a few months (or maybe a year or two) in the future and then re-trying

  • Hello - downloading app problems - this phone can only be usedto download apps in uk or something - think i am linking to the us apps  - how do i link to the uk apps?

    hello - downloading app problems - this phone can only be usedto download apps in uk or something - think i am linking to the us apps  - how do i link to the uk apps?
    ta

    You're welocme
    Depending on the size of the app or the connection speed when using Wi-Fi it could take a little longer to download. You can also try to download it onto your computer, might be faster, and sync it to the phone after that.
    Downloading past purchases from the App Store, iBookstore, and iTunes Store

  • I am looking for a text to speech app that supports the Books App?

    I am looking for a text to speech app that supports the Books App?

    If Settings -> General -> Accessibility -> VoiceOver does not work, then it is unlikely iBooks will do text to speach on its own in the current version.
    <http://www.apple.com/feedback>
    I know that some competing services, Kindle, Nook, etc... are restricted in doing text to speach by the book publishers.
    If this is text in a PDF (not an ebook), then maybe there is another app that can to text to speach on PDFs.
    If it is published books that are of interest, there is Audible.com <http://www.audible.com/>
    In theory it should be possible to use the Mac OS X Text to Speach facilities to convert a document into an audio file, and they sync that to the iPod Touch.  I assume there is similar text to speach utilities for Windows systems.
    I'm also guessing that there are web sites dedicated to assisting sight impaired individuals that might provide ideas for getting text to speach options for the iPod Touch.

  • What are the correct privileges for Wheel in address book.app 5.0.3?

    I think I messed with the privileges for Wheel in Address Book.app 5.0.3. Can anyone tell me if it should be set to Read only or to Read & Write?
    Scared to close the info window until I have sorted this out!

  • Address Book app disappeared; how can I reinstall it?

    Out of the blue, my Address Book app disappeared. The icon in the Dock has a question mark on it, and the application itself is no longer in my Applications folder, or anywhere on the drive. Even stranger, it's not in any of my Time Machine backups, even though it was working and present until yesterday.
    Mind you, I'm not talking about the data. it's that the app itself is gone. Interestingly, my email still seems to act as if the Address Book contact information is still present. But if I select an address in an email "from" field, for example, and say "Open in Address Book," nothing happens.
    Now here's an even weirder part. I also have a recent backup of my Apple Mail and Address Book using Email Backup Pro. After seeing that the Address Book app seems to have also disappeared from my Time Machine backups, I opened Email backup Pro and did a restore of my Address Book. The program reported that the Address Book was successfully restored, but nothing changed -- the Address Book app was still nowhere to be found. I've done this twice.
    I also have my Address Book data on my iPod Touch (thankfully). Synching does nothing -- nothing changes on the iPod or on the hard disk, in terms of Address Book.
    I'm baffled. Although I'd like to know what caused this, my more immediate concern is to get a functioning Address Book installed again. I booted from the Snow Leopard disc, but could see no option to install just the Address Book.
    Does anyone have any ideas?
    Thanks, John.

    click here for instructions.

  • Yahoo! Mail glitches with Lion mail client and Address Book app

    I had really been looking forward to using my Yahoo! mail account in the Lion mail client but now that it is here and I have set it up and used it for a few days I am noticing the following issues:
    New mail is not always received or is received late. Yahoo! Webmail portal shows new items but these sometimes do not appear in Lion mail client even after a manual 'get mail' check.
    Mail marked as read in Yahoo! Webmail portal or in mail clients in iOS devices such as iPhone or iPad is not marked as read in Lion mail client, however the reverse does work (i.e. mail marked as read in Lion mail client does mark the message as read in webmail and in clients on iOS devices).
    Yahoo! Aliases are not supported. Yes, you can add aliases by inserting the other email addresses in the 'Email Address' field of the account settings, but you cannot add more than one display name.
    I have also found that if you turn on Yahoo! contacts via the tick-box in the new 'Mail, Contacts & Calendars' pref pane in System Preferences that I end up with random duplicated contacts. These duplicates are not seen on iOS devices, just in the Address Book app. If you delete a duplicate contact, it deletes the contact altogether. However, I have found that if you keep contacts unticked in the pref pane and add your Yahoo! account the old-fashioned way (i.e. via the Address Book app's own preferences) then the contacts sync through perfectly with no duplications.
    I would be interested to know if anybody else is experiencing these issues. It may be worth noting that mine is not a @yahoo.com address but @xtra.co.nz which belongs to my ISP here in New Zealand, but the mail is managed by Yahoo!. The account works perfectly as a Yahoo! account on iOS devices and does appear to be working in Lion, except for these small glitches but I don't imagine these are specific to @xtra.co.nz addresses.
    Thanks
    Steve

    i've had the same experience here.
    essentially it seems like lion mail.app just takes an incredibly long time to pickup new changes from the IMAP server at yahoo.
    ios and webmail are obviously much quicker.
    if it is working on ios, why does is it so delayed in mail?
    any solutions out there?

  • My facebook icon dissapeared from my iphone 4s immediately after I updated my face book app. I have tryed everything to restore but nothing worked and i couldn

    My facebook icon dissapeared from my iphone 4s immediately after I updated my face book app. I have tryed everything to restore it but nothing worked and I couldn't even download it again because in the settings it says thats its installed and when try to open it it doesn't respond. Has any one experiebced the same thing or does anyone know any idea how to fix this?
    Thanks.

    try
    Restart iPhone: Hold down the Sleep/Wake button and the home button together until the apple logo appears (ignore the ON/OFF slider) then let both buttons go and wait for phone to restart.

Maybe you are looking for