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  • Restrict the class of an association in a Hibernate Criteria query

    - by D Lawson
    I have an object, 'Response' that has a property called 'submitter'. Submitters can be one of several different classes including Student, Teacher, etc... I would like to be able to execute a criteria query where I select only responses submitted by teachers - so this means putting a class restriction on an associated entity. Any ideas on this? I'd like to stay away from direct SQL or HQL.

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  • save 20 users with one sql query?

    - by fayer
    i save a user like this in doctrine: $user = User(); $user->name = 'peter'; $user->save(); is there a way to save 20 users in one sql query? or do i have to loop the above code 20 times hence creating 20 sql queries? thanks

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  • Help with SQL query in C#

    - by DanSogaard
    I'm trying to rename the columns. The syntax should be the column name between double quotes incase of two words, like this: SELECT p_Name "Product Name" from items So I'm trying to do it in C# code like this: string sqlqry1 = "SELECT p_Name \"Prodcut Name\" from items"; But I get an error: Syntax error (missing operator) in query expression 'p_Name "Prodcut Name"'. It seems am having somthing wrong with the quotes, but I can't figure out.

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  • Query performs poorly unless a temp table is used

    - by Paul McLoughlin
    The following query takes about 1 minute to run, and has the following IO statistics: SELECT T.RGN, T.CD, T.FUND_CD, T.TRDT, SUM(T2.UNITS) AS TotalUnits FROM dbo.TRANS AS T JOIN dbo.TRANS AS T2 ON T2.RGN=T.RGN AND T2.CD=T.CD AND T2.FUND_CD=T.FUND_CD AND T2.TRDT<=T.TRDT JOIN TASK_REQUESTS AS T3 ON T3.CD=T.CD AND T3.RGN=T.RGN AND T3.TASK = 'UPDATE_MEM_BAL' GROUP BY T.RGN, T.CD, T.FUND_CD, T.TRDT (4447 row(s) affected) Table 'TRANSACTIONS'. Scan count 5977, logical reads 7527408, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table 'TASK_REQUESTS'. Scan count 1, logical reads 11, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. SQL Server Execution Times: CPU time = 58157 ms, elapsed time = 61437 ms. If I instead introduce a temporary table then the query returns quickly and performs less logical reads: CREATE TABLE #MyTable(RGN VARCHAR(20) NOT NULL, CD VARCHAR(20) NOT NULL, PRIMARY KEY([RGN],[CD])); INSERT INTO #MyTable(RGN, CD) SELECT RGN, CD FROM TASK_REQUESTS WHERE TASK='UPDATE_MEM_BAL'; SELECT T.RGN, T.CD, T.FUND_CD, T.TRDT, SUM(T2.UNITS) AS TotalUnits FROM dbo.TRANS AS T JOIN dbo.TRANS AS T2 ON T2.RGN=T.RGN AND T2.CD=T.CD AND T2.FUND_CD=T.FUND_CD AND T2.TRDT<=T.TRDT JOIN #MyTable AS T3 ON T3.CD=T.CD AND T3.RGN=T.RGN GROUP BY T.RGN, T.CD, T.FUND_CD, T.TRDT (4447 row(s) affected) Table 'Worktable'. Scan count 5974, logical reads 382339, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table 'TRANSACTIONS'. Scan count 4, logical reads 4547, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table '#MyTable________________________________________________________________000000000013'. Scan count 1, logical reads 2, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. SQL Server Execution Times: CPU time = 1420 ms, elapsed time = 1515 ms. The interesting thing for me is that the TASK_REQUEST table is a small table (3 rows at present) and statistics are up to date on the table. Any idea why such different execution plans and execution times would be occuring? And ideally how to change things so that I don't need to use the temp table to get decent performance? The only real difference in the execution plans is that the temp table version introduces an index spool (eager spool) operation.

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  • SQL query showing missing expression

    - by Ashok Dasari
    Query to pull the data between Yseterday 6AM to today 6AM ... SELECT lot_id, log_time, batch_no, eqp_id, STATION_ID, EXTRACTVALUE (META_DATA, '/lot_info/A3') AS A3, EXTRACTVALUE (META_DATA, '/lot_info/A3Info') AS A3Info, EXTRACTVALUE ( META_DATA, '/lot_info/apc_status_info' ) AS apc_status_info FROM t_dlis_log_history WHERE ( (EQP_ID = 'ALC4360') OR (EQP_ID = 'ALC4361') OR (EQP_ID = 'ALC1360') OR (EQP_ID = 'ALC1361') OR (EQP_ID = 'ALC1362') OR (EQP_ID = 'ALC1363') OR (EQP_ID = 'ALC1364') OR (EQP_ID = 'ALC1365') OR (EQP_ID = 'ALC355') OR (EQP_ID = 'ALC353') OR (EQP_ID = 'ALC4350') OR (EQP_ID = 'ALC354') ) AND (( log_time >= DATEADD ( HOUR, 6, CONVERT(VARCHAR (10), GETDATE (), 110) ) AND ( log_time <= DATEADD ( HOUR, 6, CONVERT(VARCHAR (10), GETDATE () + 1, 110) ) ) ) It is showing error missing expression ...

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  • SQL Like query last match

    - by teepusink
    Hi, I've a database that has a name field. (i.e Firstname M. Lastname or just Firstname Lastname). Trying to filter by lastname. How can I do a query to find the last space? Something like select * from person where name like "% a%" (but the space is the last space) Thanks, Tee

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  • Help with this JET Sql Query [SOLVED]

    - by yae
    Hi: I need help to do this query select. for example I have these fields: idInvoice date amount Depending of the date I need multiply the field "amount" for x number or other one. For example, if the date is less 01/01/2010 to multiply for 20 . But if it is major or equal to multiply for 35 Select idInvoice, date, amount, amount * varNumber from invoices

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  • Convert this SQL Query into LINQ (OVER (PARTITION BY Date))

    - by user1106649
    Here's the query i'm trying to convert into Linq: SELECT R.Code, R.FlightNumber, S.[Date], S.Station, R.Liters, SUM(R.Liters) OVER (PARTITION BY Year([Date]), Month([Date]), Day([Date])) AS Total_Liters FROM S INNER JOIN R ON S.ID = R.SID WHERE (R.Code = 'AC') AND FlightNumber = '124' GROUP BY Station, Code, FlightNumber, [Date], Liter ORDER BY R.FlightNumber, [Date] Thanks for any help.

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  • Can I override a query in DJango?

    - by stinkypyper
    I know you can override delete and save methods in DJango models, but can you override a select query somehow to intercept and change a parameter slightly. I have a hashed value I want to check for, and would like to keep the hashing internal to the model.

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  • Query having 2 Where Clause

    - by Harsha M V
    i am trying to login and want to validate username and password against the records in the database. I am not sure how to pass two Where clause public Boolean login(String username, String password) throws SQLException { Cursor mCursor = db.query(TABLE_USERS, new String[] { ID, KEY_NAME, KEY_USERNAME}, KEY_USERNAME + "=" + "'"+username+"'", KEY_PASSWORD + "=" + "'"+password+"'", null, null, null, null, null); if (mCursor.moveToFirst()) { return true; } return false; } Am getting a Syntax Error.

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  • All is working except if($_POST['submit']=='Update')

    - by user1319909
    I have a working registration and login system. I am trying to create a form where a user can add product registration info (via mysql update). I can't seem to get the db to actually update the fields. What am I missing here?!? <?php define('INCLUDE_CHECK',true); require 'connect.php'; require 'functions.php'; // Those two files can be included only if INCLUDE_CHECK is defined session_name('tzLogin'); // Starting the session session_set_cookie_params(2*7*24*60*60); // Making the cookie live for 2 weeks session_start(); if($_SESSION['id'] && !isset($_COOKIE['tzRemember']) && !$_SESSION['rememberMe']) { // If you are logged in, but you don't have the tzRemember cookie (browser restart) // and you have not checked the rememberMe checkbox: $_SESSION = array(); session_destroy(); // Destroy the session } if(isset($_GET['logoff'])) { $_SESSION = array(); session_destroy(); header("Location: index_login3.php"); exit; } if($_POST['submit']=='Login') { // Checking whether the Login form has been submitted $err = array(); // Will hold our errors if(!$_POST['username'] || !$_POST['password']) $err[] = 'All the fields must be filled in!'; if(!count($err)) { $_POST['username'] = mysql_real_escape_string($_POST['username']); $_POST['password'] = mysql_real_escape_string($_POST['password']); $_POST['rememberMe'] = (int)$_POST['rememberMe']; // Escaping all input data $row = mysql_fetch_assoc(mysql_query("SELECT * FROM electrix_users WHERE usr='{$_POST['username']}' AND pass='".md5($_POST['password'])."'")); if($row['usr']) { // If everything is OK login $_SESSION['usr']=$row['usr']; $_SESSION['id'] = $row['id']; $_SESSION['email'] = $row['email']; $_SESSION['first'] = $row['first']; $_SESSION['last'] = $row['last']; $_SESSION['address1'] = $row['address1']; $_SESSION['address2'] = $row['address2']; $_SESSION['city'] = $row['city']; $_SESSION['state'] = $row['state']; $_SESSION['zip'] = $row['zip']; $_SESSION['country'] = $row['country']; $_SESSION['product1'] = $row['product1']; $_SESSION['serial1'] = $row['serial1']; $_SESSION['product2'] = $row['product2']; $_SESSION['serial2'] = $row['serial2']; $_SESSION['product3'] = $row['product3']; $_SESSION['serial3'] = $row['serial3']; $_SESSION['rememberMe'] = $_POST['rememberMe']; // Store some data in the session setcookie('tzRemember',$_POST['rememberMe']); } else $err[]='Wrong username and/or password!'; } if($err) $_SESSION['msg']['login-err'] = implode('<br />',$err); // Save the error messages in the session header("Location: index_login3.php"); exit; } else if($_POST['submit']=='Register') { // If the Register form has been submitted $err = array(); if(strlen($_POST['username'])<4 || strlen($_POST['username'])>32) { $err[]='Your username must be between 3 and 32 characters!'; } if(preg_match('/[^a-z0-9\-\_\.]+/i',$_POST['username'])) { $err[]='Your username contains invalid characters!'; } if(!checkEmail($_POST['email'])) { $err[]='Your email is not valid!'; } if(!count($err)) { // If there are no errors $pass = substr(md5($_SERVER['REMOTE_ADDR'].microtime().rand(1,100000)),0,6); // Generate a random password $_POST['email'] = mysql_real_escape_string($_POST['email']); $_POST['username'] = mysql_real_escape_string($_POST['username']); $_POST['first'] = mysql_real_escape_string($_POST['first']); $_POST['last'] = mysql_real_escape_string($_POST['last']); $_POST['address1'] = mysql_real_escape_string($_POST['address1']); $_POST['address2'] = mysql_real_escape_string($_POST['address2']); $_POST['city'] = mysql_real_escape_string($_POST['city']); $_POST['state'] = mysql_real_escape_string($_POST['state']); $_POST['zip'] = mysql_real_escape_string($_POST['zip']); $_POST['country'] = mysql_real_escape_string($_POST['country']); // Escape the input data mysql_query(" INSERT INTO electrix_users(usr,pass,email,first,last,address1,address2,city,state,zip,country,regIP,dt) VALUES( '".$_POST['username']."', '".md5($pass)."', '".$_POST['email']."', '".$_POST['first']."', '".$_POST['last']."', '".$_POST['address1']."', '".$_POST['address2']."', '".$_POST['city']."', '".$_POST['state']."', '".$_POST['zip']."', '".$_POST['country']."', '".$_SERVER['REMOTE_ADDR']."', NOW() )"); if(mysql_affected_rows($link)==1) { send_mail( '[email protected]', $_POST['email'], 'Your New Electrix User Password', 'Thank you for registering at www.electrixpro.com. Your password is: '.$pass); $_SESSION['msg']['reg-success']='We sent you an email with your new password!'; } else $err[]='This username is already taken!'; } if(count($err)) { $_SESSION['msg']['reg-err'] = implode('<br />',$err); } header("Location: index_login3.php"); exit; } if($_POST['submit']=='Update') { { mysql_query(" UPDATE electrix_users(product1,serial1,product2,serial2,product3,serial3) WHERE usr='{$_POST['username']}' VALUES( '".$_POST['product1']."', '".$_POST['serial1']."', '".$_POST['product2']."', '".$_POST['serial2']."', '".$_POST['product3']."', '".$_POST['serial3']."', )"); if(mysql_affected_rows($link)==1) { $_SESSION['msg']['upd-success']='Thank you for registering your Electrix product'; } else $err[]='So Sad!'; } if(count($err)) { $_SESSION['msg']['upd-err'] = implode('<br />',$err); } header("Location: index_login3.php"); exit; } if($_SESSION['msg']) { // The script below shows the sliding panel on page load $script = ' <script type="text/javascript"> $(function(){ $("div#panel").show(); $("#toggle a").toggle(); }); </script>'; } ?>

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  • Query scope within a table trigger in an Oracle database

    - by sisslack
    I'm been trying to write a table trigger the queries another table that is outside the schema where the trigger will reside. Is this possible? It seems like I have no problem querying tables in my schema but I get: Error: ORA-00942: table or view does not exist when trying trying to query tables outside my schema. The documentation seems to elude to this notion, but it's not 100% clear to me.

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  • Is a https query string secure?

    - by Mark
    I am creating a secure web based API that uses HTTPS however if I allow the users to configure it (include sending password) using a query string will this also be secure or should I force it to be done via a POST?

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  • Linqbuilder Query with an OrderBy

    - by Renshai
    I have a 1 : M relationship. I built a dynamic query based on input from users to return the listing of parents entities along with their children (using predicate builder: (done successfully new TDataContext().Ps.Where(predicate) )... but need to order the results by a field found only on the child entities. I'm at a loss: new TDataContext().Ps.Where(predicate).OrderBy(p = p.Cs. ??) where Ps = parents collection relationship with Cs = child entities any help appreciated.

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  • Cannot use ternary operator in LINQ query

    - by Nissan Fan
    I can't figure out why I get a Object reference not set to an instance of an object. error if I use a ternary operator in my LINQ query. var courses = from d in somesource orderby d.SourceName, d.SourceType select new { ID = d.InternalCode, Name = string.Format("{0} - {1}{2}", d.InternalCode, d.SourceName, (d.SourceType.Length > 0 ? ", " + d.SourceType : string.Empty)) }; Any thoughts?

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  • Hibernate Native Query problem with named parameters

    - by dime
    I have a problem with Hibernate Native Query. I have one SELECT that selects array slice (PostgreSQL database). The problem is that hibernate recognizes the following part: ":300" from "SELECT my_array[1:300]..." as named parameter and I get the following exception: Not all named parameters have been set. I tried to escape the colon (:) with '\:' , '::' but with no success. The Hibernate version is 3.2

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  • Query Entity Framework 4

    - by nick
    Hi, Is it possible to run a query on an EF4.0 data context and get all objects of a certain type? Say the context has books, genres & authors but I only have a generic parameter, t. Is it possible to get all of type just by using this t? I don't think it is :(

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  • Persisting and applying Linq Query to collection

    - by MattiasK
    I have a scenario where I would want a plugin to construct a LINQ (to objects) query, send it across an appdomain and then apply and run it against a collection of my choosing Is it possible, how? If not, perhaps I could send a whole method (interface) across the appdomain and run it against the data on the appside? The main thing is that I want the data to reside in the CurrentDomain and the logic for operating on it in the plugin so I don't have to send the data across the boundary...

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  • Comments Parent-Child query with indentation

    - by poldoj
    I've been trying to retrieve comments to articles in a pretty common blog fashion way. Here's my sample code: -- ---------------------------- -- Sample Table structure for [dbo].[Comments] -- ---------------------------- CREATE TABLE [dbo].[Comments] ( [CommentID] int NOT NULL , [AddedDate] datetime NOT NULL , [AddedBy] nvarchar(256) NOT NULL , [ArticleID] int NOT NULL , [Body] nvarchar(4000) NOT NULL , [parentCommentID] int NULL ) GO -- ---------------------------- -- Sample Records of Comments -- ---------------------------- INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'1', N'2011-11-26 23:18:07.000', N'user', N'1', N'body', null); GO INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'2', N'2011-11-26 23:18:50.000', N'user', N'2', N'body', null); GO INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'3', N'2011-11-26 23:19:09.000', N'user', N'1', N'body', null); GO INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'4', N'2011-11-26 23:19:46.000', N'user', N'3', N'body', null); GO INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'5', N'2011-11-26 23:20:16.000', N'user', N'1', N'body', N'1'); GO INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'6', N'2011-11-26 23:20:42.000', N'user', N'1', N'body', N'1'); GO INSERT INTO [dbo].[Comments] ([CommentID], [AddedDate], [AddedBy], [ArticleID], [Body], [parentCommentID]) VALUES (N'7', N'2011-11-26 23:21:25.000', N'user', N'1', N'body', N'6'); GO -- ---------------------------- -- Indexes structure for table Comments -- ---------------------------- -- ---------------------------- -- Primary Key structure for table [dbo].[Comments] -- ---------------------------- ALTER TABLE [dbo].[Comments] ADD PRIMARY KEY ([CommentID]) GO -- ---------------------------- -- Foreign Key structure for table [dbo].[Comments] -- ---------------------------- ALTER TABLE [dbo].[Comments] ADD FOREIGN KEY ([parentCommentID]) REFERENCES [dbo]. [Comments] ([CommentID]) ON DELETE NO ACTION ON UPDATE NO ACTION GO I thought I could use a CTE query to do the job like this: WITH CommentsCTE(CommentID, AddedDate, AddedBy, ArticleID, Body, parentCommentID, lvl, sortcol) AS ( SELECT CommentID, AddedDate, AddedBy, ArticleID, Body, parentCommentID, 0, cast(CommentID as varbinary(max)) FROM Comments UNION ALL SELECT P.CommentID, P.AddedDate, P.AddedBy, P.ArticleID, P.Body, P.parentCommentID, PP.lvl+1, CAST(sortcol + CAST(P.CommentID AS BINARY(4)) AS VARBINARY(max)) FROM Comments AS P JOIN CommentsCTE AS PP ON P.parentCommentID = PP.CommentID ) SELECT REPLICATE('--', lvl) + right('>',lvl)+ AddedBy + ' :: ' + Body, CommentID, parentCommentID, lvl FROM CommentsCTE WHERE ArticleID = 1 order by sortcol go but the results have been very disappointing so far, and after days of tweaking I decided to ask for help. I was looking for a method to display hierarchical comments to articles like it happens in blogs. [edit] The problem with this query is that I get duplicates because I couldn't figure out how to properly select the ArticleID which I want comments from to display. I'm also looking for a method that sorts children entries by date within a same level. An example of what I'm trying to accomplish could be something like: (ArticleID[post retrieved]) ------------------------- ------------------------- (Comments[related to the article id above]) first comment[no parent] --[first child to first comment] --[second child to first comment] ----[first child to second child comment to first comment] --[third child to first comment] ----[first child to third child comment to first comment] ------[(recursive child): first child to first child to third child comment to first comment] ------[(recursive child): second child to first child to third child comment to first comment] second comment[no parent] third comment[no parent] --[first child to third comment] I kinda got myself lost in all this mess...I appreciate any help or simpler ways to get this working. Thanks

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  • News Portals and mysql queries

    - by jasmine
    Consider a news portal like cnn. There is 8 categories. Is there 8 query in every page loading? For eg SELECT title FROM category where cID = 1 SELECT title FROM category where cID = 2 ................... And for sites with high traffic, would be memcache a good solution? Thanks in advance

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