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  • How can i trim or remove " , " at the end of my query?

    - by Phsika
    i try to write a query but my query finished with "Control nvarchar(500), ". i want to finish "Control nvarchar(500)" How can remove ",", " "? void SqlTable(List listMyColumnNames, string TableName) { string Text = "Create table ENG_"+TableName+" (ENG_"+TableName+"_ID integer PRIMARY KEY identity(1,1), "; char[] MyChar = {',', ' ' }; for (int i = 0; i < listMyColumnNames.Count; ) { Text+=listMyColumnNames[i]+" nvarchar(500), "; if (i == listMyColumnNames.Count-1) Text.TrimEnd(MyChar); i++; } Text+=" )";

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  • How can I convert my Stream (image data) back into a file

    - by James Hay
    I have a WCF restful service that I'm trying to upload an image to. I have a very basic metod that accepts a stream as it's only parameter and is defined in the contract as: [OperationContract] [WebInvoke(UriTemplate = "ReviewImage", BodyStyle = WebMessageBodyStyle.Bare, Method = "POST")] ReviewImage UploadImage(Stream data); I'm actually consuming this service from flash (which is fairly inconsequntial) which selects a file from the file system and uploads it through the service url. It all works seems to work, adding a breakpoint to the UploadImage method breaks as expected. If I wanted to save this file back to disk, is it just a case of reading this Stream object into a FileStream object that creates the file somewhere? A bit like the this? When i do actually do this the file can not be opened as an image. I'm sure i'm missing a key piece of knowledge here. Does my stream actually contain just the image bytes or does it contain more than that?

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  • How do database servers decide which order to return rows without any "order by" statements?

    - by Chris
    Kind of a whimsical question, always something I've wondered about and I figure knowing why it does what it does might deepen my understanding a bit. Let's say I do "SELECT TOP 10 * FROM TableName". In short timeframes, the same 10 rows come back, so it doesn't seem random. They weren't the first or last created. In my massive sample size of...one table, it isn't returning the min or max auto-incrementing primary key value. I also figure the problem gets more complex when taking joins into account. My database of choice is MSSQL, but I figure this might be an interesting question regardless of the platform.

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  • Mysql with innodb and serializable transaction does not (always) lock rows

    - by Tobias G.
    Hello, I have a transaction with a SELECT and possible INSERT. For concurrency reasons, I added FOR UPDATE to the SELECT. To prevent phantom rows, I'm using the SERIALIZABLE transaction isolation level. This all works fine when there are any rows in the table, but not if the table is empty. When the table is empty, the SELECT FOR UPDATE does not do any (exclusive) locking and a concurrent thread/process can issue the same SELECT FOR UPDATE without being locked. CREATE TABLE t ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, display_order INT ) ENGINE = InnoDB; SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; START TRANSACTION; SELECT COALESCE(MAX(display_order), 0) + 1 from t FOR UPDATE; .. This concept works as expected with SQL Server, but not with MySQL. Any ideas on what I'm doing wrong? EDIT Adding an index on display_order does not change the behavior.

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  • Uploading to a remote server periodically?

    - by user1048138
    I have been working on an app that takes screen shots, kinda like http://puush.me/ however, I would like to be able to upload the screen shots to a remote server. What protocols can I use to do so. Needs to be cross platform and secure. I know that SSH, SFTP and FTP are options, however, they all require logins that I dont want to provide to the end user. Nor do I want to sign a key for them as it would still allow their machines to remotely log in.

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  • Advanced Registry Monitoring

    - by RyanTimmons91
    I'm attempting to create a small utility to watch for the creation (or modification) of a specific registry key, and to kill the process responsible for causing that registry modification. I have had success in watching the changes to the registry via a class called 'RegistryMonitor', however it does not give you any information on what process initiated the registry call, through some googling I found that a library called 'EasyHook' should be able to do what I want, but all the documentation states that its designed for a per-application hook. The program itself is a temporary security patch, until our vendors come out with an official security update. As best I can tell there isn't a way to do exactly what I want to accomplish from C#, which is the only language I can comfortable write, test and execute software in. Any help on this would be appreciated I'm considering watching the registry changes via the program I already have, then if the change is discovered (the pc is already infected) running RKill and locking down the PC to prevent the issue from getting any worse

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  • Hi, i have a c programming doubt? I want to know the difference between the two and where one is use

    - by aks
    Hi, i have a c programming doubt? I want to know the difference between the two and where one is useful over other? suppose i have a struct called employee as below: struct emp{ char first_name[10]; char last_name[10]; char key[10]; }; Now, i want to store the table of employee records, then which method should i use: struct emp e1[100]; // Or struct emp * e1[100]; I know the two are not same but would like to know a use case where second declaration would be of interest and more advantageous to use? Can someone clarify?

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  • Make array from $_POST values

    - by cbarg
    Let's start telling that I'm passing an x amount of variables via post from a form. Let's name them menu_category_1, menu_category_2, ..., menu_category_x, plus, maybe, menu_category_new (I'm using an if empty to check this last one variable). To make things easier I'm also sending the parameter $key (amount of variables starting from 0). Now I need to set them into a new variable $menu_category (array), which is going to be imploded and then update my database. How do I set up that new $menu_category variable to be an array containing all my variables named in the beginning? I was thinking of using a for loop but I can't come up with something useful. Thanks!!!

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  • casting a node to integer

    - by user1708762
    The code gives an error saying that "no operator matches these two operands" in the if comparison statement. I interpret,it should mean that "a node can't be converted/casted into an integer". But, the print statement prints an integer value for w[2] when used with %d format. Why is that happening? Isn't printf casting it? NODE *w=(NODE *)malloc(4*sizeof(NODE)); if(w[2]==0) printf("%d\n",w[2]); The structure of the node is- struct node{ int key; struct node *father; struct node *child[S]; int *ss; int current; };

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  • how do I refactor this to make single function calls?

    - by stack.user.1
    I've been using this for a while updating mysql as needed. However I'm not too sure on the syntax..and need to migrate the sql to an array. Particulary the line database::query("CREATE TABLE $name($query)"); Does this translate to CREATE TABLE bookmark(name VARCHAR(64), url VARCHAR(256), tag VARCHAR(256), id INT) This is my ...guess. Is this correct? class table extends database { private function create($name, $query) { database::query("CREATE TABLE $name($query)"); } public function make($type) { switch ($type) { case "credentials": self::create('credentials', 'id INT NOT NULL AUTO_INCREMENT, flname VARCHAR(60), email VARCHAR(32), pass VARCHAR(40), PRIMARY KEY(id)'); break; case "booomark": self::create('boomark', 'name VARCHAR(64), url VARCHAR(256), tag VARCHAR(256), id INT'); break; case "tweet": self::create('tweet', 'time INT, fname VARCHAR(32), message VARCHAR(128), email VARCHAR(64)'); break; default: throw new Exception('Invalid Table Type'); } } }

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  • Select photo while keep the order

    - by wong2
    I have a list of photo on the page, each have an unique id, user can click on them to toggle select the photo, when they click the submit button, I need to send the array of selected photo ids to the back end, in the order that the photo was selected. I think that the fastest way to track if a photo is selected is to use an object that use photo id as key, like: var selected = { "6272861": true, "6272888": true } when the user unselect a photo, I just need to delete selected["6272861"]. But this will ignore the order, if I use an array to keep the selected photos: var selected = ["6272861", "6272888"]; then when I need to unselect a photo, I have to loop through the array and delete the item. Is there better ways? thanks.

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  • how to use same password on different userform on specicy worksheet?

    - by user3736237
    How to use same pw on different userform on specicy worksheet? E.g worksheet 1 open userform1 & worksheet 2 open userform2, but both using same password? This is the password ElseIf Pw = "1234" Then ImageNo = "PicGoh" pwno = 2 Or pwno = 3 ' ElseIf Pw = "1111" Then ' ImageNo = "PicGoh" ' pwno = 3 ElseIf Pw = "" Then pwno = 0 Else pwno = 1 End If End Sub Sub Mac3() If pwno = 0 Then Exit Sub ElseIf pwno = 3 Then UserForm2.Show ElseIf pwno = 2 Then UserForm1.Show ElseIf pwno = 1 Then MyVar = MsgBox("Wrong Password! Please Key In Your Password Again") If MyVar = 1 Then MacPw Mac3 End If End If End Sub

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  • Roll back changes to object if invalid

    - by hhravn
    How do i roll back changes to an attached object in nhibernate? We have a validation before update/save (example simplified).. var setting = Get("key") setting.Value = "helo" //for whatever reason, this particular //setting cannot have its value saved to the database ... Verify(setting); //throws base.Update(setting); but since the object is attached, any changes already happened in the session, even if the validation throws, and never reaches Update. What is the proper way to handle this?

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  • Object directing to a property when accessed as an iterable

    - by ThE_JacO
    I'm trying to figure out if there's an elegant and concise way to have a class accessing one of its own properties when "used" as a dictionary, basically redirecting all the methods that'd be implemented in an ordered dictionary to one of its properties. Currently I'm inheriting from IterableUserDict and explicitly setting its data to another property, and it seems to be working, but I know that UserDict is considered sort of old, and I'm concerned I might be overlooking something. What I have: class ConnectionInterface(IterableUserDict): def __init__(self, hostObject): self._hostObject= hostObject self.ports= odict.OrderedDict() self.inputPorts= odict.OrderedDict() self.outputPorts= odict.OrderedDict() self.data= self.ports This way I expect the object to behave and respond (and be used) the way I mean it to, except I want to get a freebie ordered dictionary behaviour on its property "ports" when it's iterated, items are gotten by key, something is looked up ala if this in myObject, and so on. Any advice welcome, the above seems to be working fine, but I have an odd itch that I might be missing something. Thanks in advance.

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  • Removing an element from an array (PHP)

    - by morpheous
    I want to remove an element from a PHP array (and shrink the array size). Just looking at the PHP docs, it seems this can be done using array_slice() and array_merge() so I am guessing (off the top of my head) that some combination of array_merge() and array_slice will work. However, array_slice() requires an index (not a key), so I'm not sure how to quickly cobble these functions together for a solution. Has anyone implemented such a function before?. I'm sure it must be only a few lines long, but I cant somehow get my head around it (its been one of those days) ... Actually, I just came up with this cheesy hack when writing up this question.... function remove_from_array(array $in, value) { return array_diff($in, (array)$value); } too ugly? or will it work (without any shocking side effects)?

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  • Are hashCodes unique for Strings?

    - by Batty
    Recently, I came across a piece of code, where Map<Integer, String> is used, where Integer(key) is hashCode of some string and String value corresponding to that. Is this right thing to do? Because now, equals will not be called for the String when calling get. (get is also done using hashCode() method on String object. Or, hashCode(s) are unique for unique Strings? I checked equals od String class. There is logic written for that. I am confused.

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  • ScrollBall press events while screen is off on an Android device.

    - by stolksdorf
    I'm writing a quick music player for myself on my Nexus One and really want to add the feature of being able to switch to the next song without removing it from it's case, ie. by pressing the scrollball through the sleeve. I've scoured many resources and... Haven't found a decently easy way to listen to key press events while the screen is off. Can't seem to even get scrollball press events to work. I've tried using a broadcastreciever listening for the Dpad_center intent, but it doesn't seem to function properly. I'm not looking for someone to write the code for me, but if you have successfully done either of these things, any insight on techniques or resources would be amazing. Thanks in advance!

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  • I can't upload a file with CGIHTTPServer

    - by sdemingo
    Hi all, I'm using the CGIHTTPServer to implement a simple cgi server. I'm trying to upload a file by a form with the post method and the multipart/form-data enctype but I have problems when I recover the value of the fields in the cgi script. When the script catch the form fields, the value of the file is a MiniFieldStorage with two fields only (key and file name), and I can't recover the content of the file. As the API doc shows, this content is in value field of a StorageField but in the MiniFieldStorage this field isn't exits. ¿How can I recover a StorageField with the content of the file instead a MiniStorageField? ¿There are other method to upload a file using CGIHTTPServer? Thanks a lot

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  • Heroku- was working before computer restarted, now can't push to remote repository- access denied

    - by DynastySS
    My heroku/git set up was working perfectly until I restarted my computer. Now when I attempt to push any change to the remote repository I get the following error. ! Your key with fingerprint ..... is not authorized to access ..... fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. I tried looking at heroku keys:add but that didn't seem to make any difference. Any ideas? Thanks!

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  • has_many in rails

    - by user363243
    I have a 'users' table which stores all of my websites users, some of which are technicians. The users table has a 'first_name' and 'last_name' field as well as other fields. The other table is called 'service_tickets' which has a foreign key from users called technician_id. This gives me a real problem because when I am looking at the service_tickets table, the related user is actually a technician. That's why the service_tickets table has a technician_id and not a user_id field. I am trying to accomplish something like this: t = service_ticket.find_by_id(7) t.technician.first_name # notice how I don't do t.user.first_name Is this possible in rails? I can't seem to get it to work... Thank you for your help!

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  • equivalent to getch(), mac/linux crash

    - by acidzombie24
    Hey guys. So I am using getch() and my app crashes instantly. Including when doing: int main() { getch(); } I can't find the link but supposedly the problem is, it needs to turn off buffering or something strange along those lines and I still want cout to work along with cross platform code. I was told to use std::cin.get(), but I'd like the app to quit when a key is pressed, not when the user typed in a letter or number then press enter to quit. Is there any function for this? The code must work under Mac (my os) and Windows.

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  • What exactly are hashtables?

    - by keg
    What are they and how do they work? Where are they used? When should I (not) use them? I've heard the word over and over again, yet I don't know its exact meaning. What I heard is that they allow associative arrays by sending the array key through a hash function that converts it into an int and then uses a regular array. Am I right with that? (Notice: This is not my homework; I go too school but they teach us only the BASICs in informatics)

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  • In ruby is there detailed documentation / information on how "<<" can and should be used (see exampl

    - by kamal
    use a YML file, which has key , value pairs yml_hosts = YAML::load(File.open('hosts.yml')) ..... for each pair yml_hosts.each_pair {|key_hosts , value_hosts| ...... redirect to a String "value_hosts" value_hosts << "#{$.} #{line}" if line =~ /recoverable NFE/ Is there a better way of doing this, since i am using the condition: if ! value_hosts.empty? to do an action, like sending email, etc but value_hosts is never Empty so i always get an email, even though, i ONLY want top get an email, if line =~ /recoverable NFE/

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  • No such file or directory python in linux only (coming from windows)

    - by user1804633
    I have the same exact directory structure within a folder in Windows & in Linux (Debian) - where the script is along the static + dataoutput folders How come the following code works fine in Windows, but gives a no such file or directory path error in linux? @app.route('/_getdataoutputfilelisting') def getdataoutputfilelisting(): listoffilesindataouput = getfiles('static/dataoutput') return jsonify(listoffiles = listoffilesindataouput) def getfiles(dirpath): a = [s for s in os.listdir(dirpath) if os.path.isfile(os.path.join(dirpath, s))] a.sort(key=lambda s: os.path.getmtime(os.path.join(dirpath, s))) a.reverse() return a Is there a way to make it universal such that it works in both OSs? Thanks

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  • correct mysql syntax error

    - by user2981651
    please could someone tell me the problem with this syntax because mysql 5.5.32 keeps tell me about an error CREATE TABLE `clients` ( `ID` tinyint(11) NOT NULL auto_increment, `title` varchar(10) NOT NULL default '', `firstName` varchar(30) NOT NULL default '', `lastName` varchar(30) NOT NULL default '', `address1` varchar(100) NOT NULL default '', `address2` varchar(100) NOT NULL default '', `town` varchar(100) NOT NULL default '', `province` varchar(100) NOT NULL default '', `country` varchar(40) NOT NULL default '', `postCode` varchar(20) NOT NULL default '', `telephone` varchar(20) NOT NULL default '', `email` varchar(100) NOT NULL default '', `cardNo` varchar(16) NOT NULL default '0000-00-00', `expiryDate` date NOT NULL default '0000-00-00', PRIMARY KEY (`ID`) ) TYPE=MyISAM COMMENT='customer table' AUTO_INCREMENT=1 ;

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