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  • C++: Life span of temporary arguments?

    - by shoosh
    When creating a new instance of a MyClass as an argument to a function like so: class MyClass { MyClass(int a); }; myFunction(MyClass(42)); does the standard make any grantees on the timing of the destructor? Specifically, can I assume that the it is going to be called before the next statement after the call to myFunction() ?

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  • Created query is not supported by my DB

    - by stacker
    I created an application using seam-gen. The created operation to search the DB ends with and exception (syntax error). The query has a where clause like this: lower(barcode0_.barcode_ean) like lower((?||'%')) limit ? Does hibnerate or seam create the where clause which my DB can't understand? Or is there a workaround for SQL statement related issues in seam?

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  • DELETE and ACCESS

    - by Alex
    Where is the error in this statement? query = "DELETE TOP 10 FROM table WHERE field LIKE \"something*\"" I get an error on the query sytax. Thanks.

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  • Subclassing Cocoa means no subclass ivars in some cases?

    - by Michael
    The question is generally coming from self = [super init]. In case if I'm subclassing NSSomething and in my init's method self = [super init] returns object of different class, does it mean I am not able to have my very own ivars in my subclass, just because self will be pointing to different class? Appreciate if you could bring some examples if my statement is wrong.

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  • Display BLOB (image) through JSP

    - by jMarcel
    I have a code to show a chart o employees. The data (name, phone, photo etc) are stored in SQLServer and displayed through JSP. Showing the data is ok, except the image .jpg (stored in IMAGE=BLOB column). By the way, I've already got the image displayed (see code below), but I dont't know how to put it in the area defined in a .css (see code below, too), since the image got through the resultSet is loaded in the whole page in the browser. Does anyone knows how can I 'frame' the image ? <% Connection con = FactoryConnection_SQL_SERVER.getConnection("empCHART"); Statement stSuper = con.createStatement(); Statement stSetor = con.createStatement(); Blob image = null; byte[] imgData = null; ResultSet rsSuper = stSuper.executeQuery("SELECT * FROM funChart WHERE dept = 'myDept'"); if (rsSuper.next()) { image = rsSuper.getBlob(12); imgData = image.getBytes(1, (int) image.length()); response.setContentType("image/gif"); OutputStream o = response.getOutputStream(); //o.write(imgData); // even here we got the same as below. //o.flush(); //o.close(); --[...] <table style="margin: 0px; margin-top: 15px;"> <tr> <td id="photo"> <img title="<%=rsSuper.getString("empName").trim()%>" src="<%= o.wite(imageData); o.flush(); o.close(); %>" /> </td> </td> <td id="empData"> <h3><%=rsSuper.getString("empName")%></h3> <p><%=rsSuper.getString("Position")%></p> <p>Id:<br/><%=rsSuper.getString("id")%></p> <p>Phone:<br/><%=rsSuper.getString("Phone")%></p> <p>E-Mail:<br/><%=rsSuper.getString("Email")%></p> </td> </table> And here is the fragment supposed to frame the image: #photo { padding: 0px; vertical-align: middle; text-align: center; width: 170px; height: 220px; } Thanks in advance !

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  • && operation in actionscript

    - by wcpro
    In the following code the line after the if statement gets run even when "BITMAP" is null. Why is this? public function get BitmapHeight () { if (_bitmapHeight == 0 && BITMAP != null) _bitmapHeight = BITMAP.bitmapData.height; return _bitmapHeight; }

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  • Clustered Index

    - by Charu
    Which type of index(clustered/non clustrered) should be used for Insert/Update/Delete statement in SQL Server. I know it creates an additional overhead but is it better in performance as comparison to non clustered index? Also which index should be use for Select statements in SQL Server?

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  • Including huge string in our c++ programs ?

    - by Xinus
    I am trying to include huge string in my c++ programs, Its size is 20598617 characters , I am using #define to achieve it. I have a header file which contains this statement #define "<huge string containing 20598617 characterd>" When I try to compile the program I get error as fatal error C1060: compiler is out of heap space I tried following command line options with no success /Zm200 /Zm1000 /Zm2000 How can I make successful compilation of this program? Platform: Windows 7

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  • jQuery if and logic

    - by danit
    I have a simple jQuery toolbar, the basic functionality is: Hover: Background change to defined value & add .active class OnClick: Move the icon down 4px, and change background of the toolbar to that of the element What I would like to do move the icon down 4px when it has the class 'active' applied, however also remove the onclick event? Somehow I need an 'IF' statement in my jQuery for the Onclick event.

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  • Can't create/write to file (Errcode: 22)

    - by magdmartin
    Quite new with SQL I'm looking to export some data from a MySQL database into a csv file. I'm working locally (localhost). Here is my SQL statement: SELECT DISTINCT * INTO OUTFILE 'C:\Users\Martin\Downloads\result.csv' FROM provider, location, provider_has_location WHERE provider.idprovider = provider_has_location.provider_idprovider AND location.idLocation = provider_has_location.location_idLocation LIMIT 20 MySQL return the following error: Can't create/write to file 'C:UsersMartinDownloads esult.csv' (Errcode: 22) Thanks for your help.

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  • bulk insert from Java into Oracle

    - by Will Glass
    I need to insert many small rows rapidly into Oracle. (5 fields). With MySQL, I break the inserts into groups of 100, then use one insert statement for every group of 100 inserts. But with Oracle, user feedback is that the mass inserts (anywhere from 1000-30000) are too slow. Is there a similar trick I can use to speed up the programmatic inserts from Java into Oracle?

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  • Is there anyway that we can get a label value to a Sql

    - by Pradeep
    SELECT COUNT(*) AS Expr1 FROM Book INNER JOIN Temp_Order ON Book.Book_ID = Temp_Order.Book_ID WHERE (Temp_Order.User_ID = 25) AND (CONVERT (nvarchar, Temp_Order.OrderDate, 111) = CONVERT (nvarchar, GETDATE(), 111)) In here i want to change my User_ID to get from a label.Text this Sql Statement is in a DataView. so in the Wizard it not accepting a text box values or anything. can someone please help me to solve this

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  • conditional or js to detect whether user is on windows XP?

    - by Haroldo
    Because windows xp renders certain fonts so poorly, i would like to detect whether the user is using that OS and add a class to the body accordingly. I'm looking ideally for an html conditional statement or php $_SERVER var to do this However failing that a piece of javscript along the lines of below would do if(users_os === 'xp'){ $('body').addClass('xp'); } What avenues should i be persuing?!!! thanks!

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  • mysql_query() returns returns true, but mysql_num_rows() and mysql_fetch_array() give "not a valid r

    - by zlance4012
    Here is the code in question: -----From index.php----- require_once('includes/DbConnector.php'); // Create an object (instance) of the DbConnector $connector = new DbConnector(); // Execute the query to retrieve articles $query1 = "SELECT id, title FROM articles ORDER BY id DESC LIMIT 0,5"; $result = $connector-query($query1); echo "vardump1:"; var_dump($result); echo "\n"; /(!line 17!)/ echo "Number of rows in the result of the query:".mysql_num_rows($result)."\n"; // Get an array containing the results. // Loop for each item in that array while ($row = $connector-fetchArray($result)){ echo ' '; echo $row['title']; echo ' '; -----end index.php----- -----included DbConnector.php----- $settings = SystemComponent::getSettings(); // Get the main settings from the array we just loaded $host = $settings['dbhost']; $db = $settings['dbname']; $user = $settings['dbusername']; $pass = $settings['dbpassword']; // Connect to the database $this-link = mysql_connect($host, $user, $pass); mysql_select_db($db); register_shutdown_function(array(&$this, 'close')); } //end constructor //* Function: query, Purpose: Execute a database query * function query($query) { echo "Query Statement: ".$query."\n"; $this-theQuery = $query; return mysql_query($query, $this-link) or die(mysql_error()); } //* Function: fetchArray, Purpose: Get array of query results * function fetchArray($result) { echo "<|"; var_dump($result); echo "| \n"; /(!line 50!)/$res= mysql_fetch_array($result) or die(mysql_error()); echo $res['id']."-".$res['title']."-".$res['imagelink']."-".$res['text']; return $res; } -----end DbConnector.php----- -----Output----- Query Statement: SELECT id, title FROM articles ORDER BY id DESC LIMIT 0,5 vardump1:bool(true) PHP Error Message Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /path to/index.php on line 17 Number of rows in the result of the query: <|bool(true) | PHP Error Message Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /path to/DbConnector.php on line 50

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  • Targeting all subclassed CCSprites (cocos2d)

    - by Joethemonkey101
    I'm working on a method to end the level, but to do so, I have to see that all of the enemy character have been killed. If my enemies are CCSprites, how do I make a method that detects if all of them are dead? I'm tracking their health with an int called enemyHp. For example, this is an if statement I made to remove the enemy if (enemy.enemyHp <= 0) { To recap - I want to make a method that detects when all enemies have been killed. Thanks

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  • Is there something in MySQL like IN but which uses AND instead of OR?

    - by Skatox
    I need a SQL statement to retrieve records where it key (or any column) is in a associate table, for example: documentId termId 4 1 4 2 3 3 5 1 This: SELECT documentId FROM table WHERE termId IN (1,2,3) ...will retrieve any documentid value where the termid value is 1 or 2 or 3. Is there something like this but return documentid values where the termid values are 1 and 2 and 3? Like an IN but with AND.

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