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• Problem when trying to disappear a column

  - by eddy

  I need to hide a column as well as other elements when my page is printed , and in order to do that I have a print style sheet, everything works fine, except for the column I want to make disappear, the strange thing is that my stylesheet works in IE , but it didn't in Mozilla and chrome, why's that? Html code <col width="10%" class="art-editcolumn"/> and here's the CSS class: .art-editcolumn { display: none; } Hope you can help me out with this.

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• oracle query returns 4 duplicates of each row

  - by ajoe

  hello, I am Running a oracle query, it seems to work except that it returns 4 dupes of each result. here is the code: Select * from (Select a.*, rownum rnum From (SELECT NEW_USER.*, NEW_EHS_QUIZ_COMPLETE.datetime FROM NEW_USER, NEW_EHS_QUIZ_COMPLETE WHERE EXISTS(select * from NEW_EHS_QUIZ_COMPLETE where NEW_USER.id=NEW_EHS_QUIZ_COMPLETE.USER_ID) ORDER by last_name ASC ) a where rownum <= #pgtop# ) where rnum >= #pgbot# does anyone know why this isnt working properly? thanks in advance.

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• Sequential coupling in code

  - by dotnetdev

  Hi, Is sequential coupling (http://en.wikipedia.org/wiki/Sequential_coupling) really a bad thing in code? Although it's an anti-pattern, the only risk I see is calling methods in the wrong order but documentation of an API/class library with this anti-pattern should take care of that. What other problems are there from code which is sequential? Also, this pattern could easily be fixed by using a facade it seems. Thanks

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• is Payment table needed when you have an invoice table like this?

  - by EBAGHAKI

  this is my invoice table: Invoice Table: invoice_id creation_date due_date payment_date status enum('not paid','paid','expired') user_id total_price I wonder if it's Useful to have a payment table in order to record user payments for invoices. payment table can be like this: payment_id payment_date invoice_id price_paid status enum('successful', 'not successful')

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• joining two tables and getting aggregate data

  - by alex

  how do i write a query that returns aggregate sales data for California in the past x months. ----------------------- ----------------------- | order | | customer | |-----------------------| |-----------------------| | orderId int | | customerId int | | customerId int | | state varchar | | deposit decimal | ----------------------- | orderDate date | ----------------------- ----------------------- | orderItem | |-----------------------| | orderId int | | itemId int | | qty int | | lineTotal decimal | | itemPrice decimal | -----------------------

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• Select random line in SQL database

  - by Jensen

  Hi, I would like to select a random line in my database. I saw this solution on a website: SELECT column FROM table ORDER BY RAND() LIMIT 1 This SQL query run but someone said me that it was a non performant query. Is there another solution ? Thx

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• VB.NET Enumeration Representation

  - by Steven

  Is it guaranteed that the numeric values for an Enum with only uninitialized values start at zero and increment by one in the order defined?

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• How do I remove the alert: "...may not respond to..."

  - by balexandre

  In my .m file I call a method that is inside the same .m file. In the header I have the correct import for the header but I keep getting this alert: What am I doing wrong? What should I do in order to make this error disappear? I'm kinda lost here :-( Even if I changed this to: NSString *path = [[NSString alloc] initWithString:@"...."]; [self parseXMLFileAtURL:path]; [path release];

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• mysql query results sorting

  - by user329094

  I am calling the results form a query to a list on my site based on if the item is "downtown_hosted". This works fine but I would now like to sort that list DESC, but can't seem to get the syntax correct. Below is what I have: $result_events = mysql_query("SELECT * FROM events WHERE downtown='downtown_hosted' ORDER BY date DESC LIMIT 5 ");

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• Parameterizing a SQL IN clause?

  - by Jeff Atwood

  How do I parameterize a query containing an IN clause with a variable number of arguments, like this one? select * from Tags where Name in ('ruby','rails','scruffy','rubyonrails') order by Count desc In this query, the number of arguments could be anywhere from 1 to 5. I would prefer not to use a dedicated stored procedure for this (or XML), but if there is some fancy SQL Server 2008 specific way of doing it elegantly, I am open to that.

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• How to create a menu tree using HTML

  - by Priyanka

  Hello,I need to create a menu tree using HTML. I had a search on Google, but they are providing some software to download in order to create this. But I need some script and HTML tags to do this. Can anyone help me solve this problem. Thanks in advance.

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• Java-Hibernate-Newbie: How do I acces the values from this list?

  - by Mes

  I have this class mapped @Entity @Table(name = "USERS") public class User { private long id; private String userName; } and I make a query: Query query = session.createQuery("select id, userName, count(userName) from User order by count(userName) desc"); return query.list(); How can I acces the value returned by the query?

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• Silverlight create and execute file server-side

  - by immuner

  In my app i have the option of viewing a file that opens a window application (google earth). In order to do that i wish to create a custom file server-side under a certain relative path (eg. "//Files") and then tell the server to execute it. How can i do this? Thank you

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• How to recover pixelated text from jpeg in photoshop?

  - by Chris Hil

  Hi there, I´ve got an jpeg image with text on it (badly scanned document), which is hardly readable. I have already played around with the sharpen filters, contrast, levels and the color replacement tool, with decent success. however my question is, what else can be done order to maximize the texts readablity? the picture is also somewhat noisy. Any help on this one would be greatly apreciated, since I absolutely need the images content.

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• Infinite loop when Select?!

  - by serhio

  I have a winform in witch I have a custom LongPanel with textboxes. In order to validate an eventually edited textbox when the user click somewhere out of textBoxY I use the following code: Private Sub LongPanel_MouseClick(ByVal sender As Object, ByVal e As MouseEventArgs) _ Handles MyBase.MouseClick _AttachedPanel.Select() End Sub In runtime application freezes at the "Select" line... I receive infinite panel Leave events... any idea why?

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• sqlalchemy natural sorting

  - by teggy

  Currently, i am querying with this code: meta.Session.query(Label).order_by(Label.name).all() and it returns me objects sorted by Label.name in this manner ['1','7','1a','5c']. Is there a way i can have the objects returned in the order with their Label.name sorted like this ['1','1a','5c','7'] Thanks!

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• what does "foo" mean in SqlServer Query ?

  - by John

  for eg... SELECT * FROM ( SELECT RANK() OVER (ORDER BY stud_mark DESC) AS ranking, stud_id, stud_name, stud_mark FROM tbl_student ) AS foo WHERE ranking = 10 Here foo is present...actually what it does ?..

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• Which are the most noteable things which make working with Core Date so different than with MySQL?

  - by mystify

  One thing I have in mind is, that datasets in Core Data (or lets say: managed objects) have no ID like known from other databases such as MySQL. Also, they're not in a specific guaranteed order. What else makes Core Data much more "special" compared to working with a relational database like MySQL? Besides the whole object graph persisting and ORM stuff?

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• sort an array of floats in c++

  - by duckofrubber

  Hi, I have an array of (4) floating point numbers and need to sort the array in descending order. I'm quite new to c++, and was wondering what would be the best way to do this? Thanks.

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• Log into file or database, readability question

  - by Fungsten

  Hi there! Right now I'm logging some info of the user in my web app in a log file to observe the usage & interest for some services, but I'm interested in checking that info in a readeable way, so I'm questioning if maybe I shall save that info in a database and then retrieve it to show it in tables or whatever. It's better to log in the database for my purposes? Or logging like now I could select/order the info of the log easily?

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• How much memory does a hashtable use?

  - by Michael

  Would a hashtable/hashmap use a lot of memory if it only consists of object references and int's? As for a school project we had to map a database to objects (that's what being done by orm/hibernate nowadays) but eager to find a good way not to store id's in objects in order to save them again we thought of putting all objects we created in a hashmap/hashtable, so we could easily retrieve it's ID. My question is if it would cost me performance using this, in my opinion more elegant way to solve this problem.

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• Firebird 2.1 + EXISTS = query bug?

  - by Atlas

  Using Delphi 2009 + Firebird 2.1.3. Database is ODS 11.1, default char set is UTF8. My prepared query is as follows: SELECT a.po_id, a.po_no FROM purchase_order a WHERE EXISTS (SELECT 1 FROM sales_order_item z1 JOIN purchase_order_item z2 ON z2.so_item_id = z1.so_item_id AND z2.po_id = a.po_id WHERE z1.so_id = :soid) ORDER BY a.po_no Now when I loop this say 1000 times because I have 1000 x so_id, the CPU usage get at 100% for FBSERVER.EXE Anyone encountered this problem?

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• SQL Join only returning 1 row.

  - by kevin

  Not quite sure what I'm missing, but my SQL statement is only returning one row. SELECT tl.*, (tl.topic_total_rating/tl.topic_rates) as topic_rating, COUNT(pl.post_id) - 1 as reply_count, MIN(pl.post_time) AS topic_time, MAX(pl.post_time) AS topic_bump FROM topic_list tl JOIN post_list pl ON tl.topic_id=pl.post_parent WHERE tl.topic_board_link = %i AND topic_hidden != 1 ORDER BY %s I have two tables (post_list and topic_list), and post_list's post_parent links to a topic_list's topic_id. Instead of returning all the topics (where their board's topic_board_link is n), it only returns one topic.

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• Grails - how to save a domain object inside a Service ?

  - by w-

  I have a service and inside one of the functions i'm creating a domain object and trying to save it. when it gets to the save part, i get the error No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here What do i need to do in order to save a domain object inside of a service. everything on the internet makes it look like this should just work....

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• Java SQL (h2): What's the best way to retrieve the unique ID of the single item I just inserted into

  - by Daddy Warbox

  My current method is this: SELECT TOP 1 ID FROM DATAENTRY ORDER BY ID DESC This assumes the latest inserted item always has the highest unique ID (primary key, autoincrementing). Something smells wrong here. Alternatives?

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