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  • MySQL query for initial filling of order column

    - by Sejanus
    Sorry for vague question title. I've got a table containing huge list of, say, products, belonging to different categories. There's a foreign key column indicating which category that particular product belongs to. I.e. in "bananas" row category might be 3 which indicates "fruits". Now I added additional column "order" which is for display order within that particular category. I need to do initial ordering. Since the list is big, I dont wanna change every row by hand. Is it possible to do with one or two queries? I dont care what initial order is as long as it starts with 1 and goes up. I cant do something like SET order = id because id counts from 1 up regardless of product category and order must start anew from 1 up for every different category.

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  • objective c - release problem

    - by amir
    Hello, I have the following code: NSNumber *number = [NSNumber numberWithInt:5]; int i = [number retainCount]; [number release]; i = [number retainCount]; [number release]; i = [number retainCount]; the problem is that in line 2 , the value of parameter i is 2 and in line 4 the value is 1. then in line 6 the value is still 1.???????? first i dont understand why after init *number the retaincount is 2 and not 1?? second i dont understand why after release it 2 times retaincount is not 0? it doesnt matter how many times i release the object the retaincount stay 1.

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  • rewrite a function using only pointer increment/decrement

    - by Richard Nguyen
    can anyone help me rewrite the function i wrote below using only points and pointer increment/decrement? I dont have much experience with pointer so I dont know what to do. void reverse(char * s) { int i, l = strlen(s); char c; for(i = 0; i < (l >> 1); i++) { c = s[i]; s[i] = s[l - i - 1]; s[l - i - 1] = c; } } do not use pointer arithmetic or array notation. any help or hint on how to rewrite the function above is appriciated. Thanks!

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  • using operators and functions for sql report charts (visual studio 2010)

    - by user1682566
    I want to create some charts using sql reporting services. But i am unable to use a lot of functions and operators in combination with my data-fields the following work(Stroke-data type is decimal): > =Fields!Stroke.Value > =Sum(Fields!Stroke.Value) > =First(Fields!Stroke.Value) > =Last(Fields!Stroke.Value) > =2+2394.12 the following dont work: > =Fields!Stroke.Value + 2 > =CStr(Fields!Stroke.Value) > =CDbl(Fields!Stroke.Value) > =Fields!Stroke.Value / Fields!Stroke.Value > =Sum(Fields!Stroke.Value) * 2 all other operators and functions(using Fields!Stroke.Value) dont work too

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  • Python:How to override inner class methods if the inner class is defined as a property of the top cl

    - by Maddy
    I have a code snippet like this class A(object): class b: def print_hello(self): print "Hello world" b = property(b) And I want to override the inner class 'b'(please dont worry about the lowercase name) behaviour. Say, I want to add a new method or I want to change an existing method, like: class C(A): class b(A.b): def print_hello(self): print "Inner Class: Hello world" b = property(b) Now if I create C's object as c = C(), and call c.b I get TypeError: 'property' object is not callable error. How would I get pass this and call print_hello of the extended inner class? Disclaimer: I dont want to change the code for A class.

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  • SQLITE (C/C++interface) - How to commit a transaction

    - by AJ
    I am using sqlite c/c++ interface. Now here is my scenario - I have 3 tables (related tables) say A, B, C. Now, there is a function called Set, which get some inputs and based on the inputs inserts rows into these three tables. (sometimes it can be an update in one of the tables) Now I need two things. One, i dont want autocommit feature. Basically I would like to commit after every 1000 calls to Set function Secondly, within the set function itself, if i find that after inserting into two tables, the third insert fails, then i have to revert, those particular changes in that Set function call. Now i dont see any sqlite3_commit function exposed. I only see a function called sqlite3_commit_hook() which is slightly diff in documentation. Are there any function exposed for this purpose? or What is the way to achieve this behaviour? Can you help me with the best approach of doing this. Regards, Arjun

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  • Can NSUserDefaults be used for pausing the application during a phone call ?

    - by Anil Kumar
    Friends, currently I dont have iphone to test and using Simulator for testing purposes. I am Just curious to know whether an application continues to run even after a phone call.. here i have no option to test this from simulator. If it terminates then how can i pause things.. and continue after a phone call. Is NSUserDefaults can be used for my case. As far I understood NSuserDefaults are used to store data that is required when the App is next time loaded. But here I dont want my App to terminate instead pause until Call ends and continue as uninterrupted later. Please clear me about this. Sorry I am still a beginner so I request for no harsh replies if my question looks stupid. Thanks in Advance

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  • i can't see a context menu of WPF windows app through VNC

    - by tk
    I can open a context menu but cannot see the opened menu list through VNC. (I know that i can open the context menu by checking the vnc server machine directly) I tested on different vnc servers / clients machines (although all of them are windows Vista), and different wpf app, but still I cant see any menu list. Is this a reported problem? I found some information about wpf problem relating to windows desktop, but i dont know about vnc. ADDED : I dont have this problem on windows native apps or windows forms apps under my vnc environment.

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  • How to map a property for HQL usage only (in Hibernate)?

    - by ManBugra
    i have a table like this one: id | name | score mapped to a POJO via XML with Hibernate. The score column i only need in oder by - clauses in HQL. The value for the score column is calculated by an algorithm and updated every 24 hours via SQL batch process (JDBC). So i dont wanna pollute my POJO with properties i dont need at runtime. For a single column that may be not a problem, but i have several different score columns. Is there a way to map a property for HQL use only? For example like this: <property name="score" type="double" ignore="true"/> so that i still can do this: from Pojo p order by p.score but my POJO implementation can look like this: public class Pojo { private long id; private String name; // ... } No Setter for score provided or property added to implementation. using the latest Hibernate version for Java.

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  • sql query need a help.

    - by benjamin button
    If i have a table with two fields.customer id and order. let's say i have in total order ID 1,2,3,4 all the customer can have all the four orders.like below 1234 1 1234 2 1234 3 1234 4 3245 3 3245 4 5436 2 5436 4 you can see above that 3245 customer doesnt have order id 1 and 2. how could i print in the query output like 3245 1 3245 2 5436 1 5436 3 EDIT: i dont order table but i have list of order's like we can hard code it in the query(1,2,3,4) i dont have an orders table.

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  • calling a service from an activity

    - by newbie
    Hi,I have been stuck on this issue for quite some time now.Have read the documentation and many tutorials and they just confuse me more.I hope someone will provide me a straightforward answer.It's really important.Thank you.. Ok ..so i want an activity to get some input from the user as and then send that string to a service.Then i want my service to run in a way so that i can use other applications while this one keeps running in the background.Also i don't want the service to keep running every second.What i want is for the service to get updated location of my current position every 10 minutes so i was thinkin if there could be a way to make my service to go to sleep n wake up evry 10 mins n check for updates.I don't want to show the update on the UI so i dont think i need to use an AIDL approach and also dont need to bind to the service.I js simply want to start the service as soon as the user enters the string and keep the service runing every 10 mins.I think it is really simple but m very confused.Please help.

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  • RSA encrypted data block size

    - by calccrypto
    how do you store an rsa encrypted data block? the output might be significantly greater than the original input data block size, and i dont think people waste memory by padding bucket loads of 0s in front of each data block. besides, how would they be removed? or is each block stored on new lines within the file? if that is the case, how would you tell the difference between legitimate new line and a '\n' char written into the file? what am i missing? im writing the "write to file" part in python, so maybe its one of the differences between: open(file,'w') open(file,'w+b') open(file,'wb') that i dont know. or is it something else?

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  • Controlling the visibility of a Bitmap in .NET

    - by ET
    Hi everyone, I am trying to create this simple application in c#: when the user double clicks on specific location in the form, a little circle will be drawn. By one click, if the current location is marked by a circle - the circle will be removed. I am trying to do this by simply register the MouseDoubleClick and MouseClick events, and to draw the circle from a .bmp file the following way: private void MouseDoubleClick (object sender, MouseEventArgs e) { Graphics g = this.CreateGraphics(); Bitmap myImage = (Bitmap)Bitmap.FromFile("Circle.bmp"); g.DrawImage(myImage, e.X, e.Y); } My problem is that I dont know how to make the circle unvisible when the user clicks its location: I know how to check if the selected location contains a circle (by managing a list of all the locations containig circles...), but I dont know how exactly to delete it. Another question: should I call the method this.CreateGraphics() everytime the user double-clicks a location, as I wrote in my code snippet, or should I call it once on initialization?

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  • how to make the footer div start after all other divs have finished

    - by amit
    i am having a slight problem with the alignment of the footer div. i have a header at the top. div = maincontent { two divs for content, side by side. another 2 divs side by side below the content div. } //just to represent. i know this is not html ;) now i want the footer div to start after the maincontent div finishes. i can do that if i specify a fixed height for the maincontent div. but i dont want to specify a height for it. if i dont specify the height, the footer div starts at the middle of the page. what am i doing wrong?

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  • top and left in IE6

    - by peter
    i have really problem adjusting top and left in IE6 , in all browsers just things works good. i have this css font-family: "Lucida Grande","Lucida Sans Unicode",Verdana,Arial,Helvetica,sans-serif; font-size: 12px; height: 590px; left: 50px; line-height: normal; overflow: hidden; position: relative; text-align: left; top: -42px; width: 760px; z-index: 0; EDIT this top and left i get it from javascript like that function() {H(a,{left:0,top:0}) i dont have css file to put codes. so if i change top and hight its not triggered in ie6 . its like that i do nothing . i wonder if ie6 dont handle top and left ? how can i fix this .?

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  • Tkinter change all color when variable change

    - by Morten Larsen
    hi i have a simpel tkinter window. consists of a small window, a timer, and a button for set timer. dont want to go in details with the code... Now all the widgets in my windows eg. button, Label Ect. will have to change color. EG. i Have a global variabel wich i will set as color "red" fx... All the widgets BACKGROUND option is associated with the global variabel. Now on button press i will change the global variable to "green" so that the background of all widgets ect. will change color, but they DONT. i thought the .mainloop() sort of UPDATED the window. how can i have the widgets to change background color when my variable change WITHOUT restarting my application??? ty Xanthar

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  • Overlapping and Stacking in CSS

    - by ApacheCode
    Hello, I'm a programmer and learning new techniques in web development. I've ran into a problem if you could look at the link below. http://bailesslaw.com/Bailess_003/bailesHeader/header.html This example I made isnt fixed and it needs to be, which is becoming difficult. This looks fine on here, but when I put those layers on main website, index.html, place this code as the header, the banner moves in the documents position 0,0 . I need these boxes fixed, center page and I cannot get them to do that without messing up the layers order and content. Layer1-rotating images, js causes the rotation Layer2-blue triangle with backdrop effect overlapping layer 1, Layer 3-is a static image with a high z-index Below I including some code, the important part that needs 3 overlapped layers exactly matching in width and height, except it has to be fixed in center 780px wide. Code: <style rel="stylesheet" type="text/css"> div#layer1 { border: 1px solid #000; height: 200px; left: 0px; position: fixed; top: 0px; width: 780px; z-index: 1; } div#layer2 { border: 1px solid #000; height: 200px; left: 0px; position: absolute; top: 0px; width: 780px; z-index: 2; } div#layer3 { border: 1px solid #000000; height: 200px; left: 0px; position: absolute; top: 0px; width: 780px; z-index: 3; } </style> </head> <body class="oneColFixCtr"> <div id="container"> <div id="mainContent"> <div id="layer1"> </div> <div id="layer2"> <div class="slideshow"> <span id="rotating1"> <p class="rotating"> </p> </span> <span id="rotating2"> <p class="rotating"> </p> </span> <span id="rotating3"> <p class="rotating"> </p> </span> <span id="rotating4"> <p class="rotating"> </p> </span> </div> </div> <div id="layer3"> <table width="385" border="0"> <tr> <th width="81" scope="col"> &nbsp; </th> <th width="278" scope="col"> &nbsp; </th> <th width="12" scope="col"> &nbsp; </th> </tr> <tr> <td> &nbsp; </td> <td> </td> <td> &nbsp; </td> </tr> <tr> <td> &nbsp; </td> <td> &nbsp; </td> <td> &nbsp; </td> </tr> </table> </div> </div> <!-- end #container --> </div> </body> </body> </html> CSS: @charset "utf-8"; CSS code: #rotating1 { height: 200px; width: 780px; } #rotating2 { height: 200px; width: 780px; } #rotating3 { height: 200px; width: 780px; } #main { background-repeat: no-repeat; height: 200px; width: 780px; z-index: 100; } #test { width: 780px; z-index: 2; } #indexContent { background-color: #12204d; background-repeat: no-repeat; height: 200px; width: 780px; z-index: 1; } #indexContent p { padding: .5em 2em .5em 2em; text-align: justify; text-indent: 2em; } .rotating { float: right; margin-top: 227px; text-indent: 0px !important; } .clearfix:after { clear: both; content: " "; display: block; font-size: 0; height: 0; visibility: hidden; } .clearfix { display: inline-block; } * html .clearfix { height: 1%; } .clearfix { display: block; }

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  • Retrieving a page of that has a redirect

    - by Dmitry Makovetskiyd
    I get my page content with this function: private function fetch_url($url){ $ch=curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_TIMEOUT, 320); $this->doc = curl_exec($ch); $this->status_code= curl_getinfo($ch, CURLINFO_HTTP_CODE); // echo $this->doc; curl_close($ch); } The problem is that with some urls dont exist on a webpage and there is a redirect to another page.. So say if I put the parameter: http://example.com/uncategorized/ It redirect me to : http://example.com/mature/ The problem is with curl, I dont get any content.. But my aim is to get the content of that page redirect.. Is there an easy way to get the function to work in the way I want..?

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  • How to copy a folder recursively with out overwriting the previous one

    what i need is i have linked my project with the cruise control, so when ever a build happens i want to copy the bin folder to a seperate destination folder with version number. That is when the project build happens for the second time i dont want to replace the bin folder of the first build i want to save this with another version number. How can i do that. Right now i got the thing how to copy the folder but it was overwriting the previous one. i dont want that to happen please help me how to implement the concept of versioning.

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  • Database suggestion

    - by superartsy
    I am working on an enterprise level product that is designed around SQL Express Database ( views,concurrent users,stored procedures,case,IF).Though we dont use any SQL Server advanced features, if the database size of 4Gb in express ends up being a limitation customers can move to advanced versions of SQL Server. However my problem is, SQL Express deployment is not easy and the installer size is huge. This is a major drawback for someone looking to try our product.You dont want end users to not buy a product becos the download is huge. Does anyone have any recommendations of a database that has a smaller footprint but all the features of Express and which can be migrated to express?

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  • C# Drag and Drop Effect with Overlay/Opaque Image

    - by CallMeLaNN
    Hi, I think this would be simple question and should be asked in the pas few years but unable to google around and dont know if there is a specific keyword. In c# WinForm I want to do drag and drop but I dont want the image of DragDropEffects Move, Copy or whatever. I want to display an image with half opaque. Just like Firefox when dragging an image, you would see the image folowing the mouse pointer like a ghost :) I already Implement DoDragDrop, DragEnter and DragDrop events. I just want to customize the dragging effects with overlay image.

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  • Webservice for uploading data: security considerations

    - by Philip Daubmeier
    Hi everyone! Im not sure about what authentification method I should use for my webservice. I've searched on SO, and found nothing that helped me. Preliminary Im building an application that uploads data from a local database to a server (running my webservice), where all records are merged and stored in a central database. I am currently binary serializing a DataTable, that holds a small fragment of the local database, where all uninteresting stuff is already filtered out. The byte[] (serialized DataTable), together with the userid and a hash of the users password is then uploaded to the webservice via SOAP. The application together with the webservice already work exactly like intended. The Problem The issue I am thinking about is now: What is if someone just sniffs the network traffic, 'steals' the users id and password hash to send his own SOAP message with modified data that corrupts my database? Options The approaches to solving that problem, I already thought of, are: Using ssl + certificates for establishing the connection: I dont really want to use ssl, I would prefer a simpler solution. After all, every information that is transfered to the webservice can be seen on the website later on. What I want to say is: there is no secret/financial/business-critical information, that has to be hidden. I think ssl would be sort of an overkill for that task. Encrypting the byte[]: I think that would be a performance killer, considering that the goal of the excercise was simply to authenticate the user. Hashing the users password together with the data: I kind of like the idea: Creating a checksum from the data, concatenating that checksum with the password-hash and hashing this whole thing again. That would assure the data was sent from this specific user, and the data wasnt modified. The actual question So, what do you think is the best approach in terms of meeting the following requirements? Rather simple solution (As it doesnt have to be super secure; no secret/business-critical information transfered) Easily implementable retrospectively (Dont want to write it all again :) ) Doesnt impact to much on performance What do you think of my prefered solution, the last one in the list above? Is there any alternative solution I didnt mention, that would fit better? You dont have to answer every question in detail. Just push me in the right direction. I very much appreciate every well-grounded opinion. Thanks in advance!

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