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• JPA CascadeType.ALL does not delete orphans.

  - by Paul Whelan

  I am having trouble deleting orphan nodes using JPA with the following mapping @OneToMany (cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy = "owner") private List<Bikes> bikes; I am having the issue of the orphaned roles hanging around the database. I can use the @org.hibernate.annotations.Cascade Hibernate specific tag but obviously I don't want to tie my solution into a hibernate implementation. Any pointers greatly appreciated.

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• Comparing XML in SSRS

  - by silves89

  I'm new to SSRS. We'll have two slightly different chunks of XML in a single row of an SQL Server database table. In an SSRS report we'll want to show only the differences between the XML chunks. I don't know how to do this, but I suspect the XML Type in SQLServer 2005 might be useful, or XSLT transformations in SSRS. Could anyone point me in the right direction?

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• Showing data on QTableWidget

  - by ayla

  I have a database table and I must read it and show it on tableWidget I read it but I cant show it on tableWidget, How can I do? Thanks

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• pattern to transfer search model to dao

  - by zeroed

  We have a dao as a project (jar file). Clients use its interfaces and factories to operate with database. Using standard CRUD operations, dao allows you to search an entity by some search criteria. What is the best way to represent this criteria? Is transfer object appropriate pattern in this situation? How should client create SearchModel instance? Please, share. Regards.

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• Compare day and show hour only using DateTime formats

  - by Vitor Reis

  Hello, I have a DateTime column in my SQL database, how do I check if the Day in that is Today, or yesterday? What I want to is something like: If date is today then the result would be "Today, at " same for yesterday..

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• Returning records from 3 tables via a Join Table with Propel in Symfony

  - by Jon Winstanley

  I have 3 database tables: article article_has_tag (2 FK's to the other tables) tag I currently show a list of articles with the article's tags shown underneath but the number of queries grows as the list gets longer. I want to loop over all the articles and get the tag objects from each one in turn. Can it be done in 1 propel query?

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• How to Solve the inner Exception i.e. index out of range

  - by narmadha

  I am storing items into a combo box which had been retrieved from the database in the following manner: cmbCustomerName.DataSource = null; cmbCustomerName.DataSource = result; cmbCustomerName.ValueMember = "CustomerID"; cmbCustomerName.DisplayMember = "CustomerName"; cmbCustomerName.Text = null; Its working, but often showing the inner exception "Index Out of Range". Why does this error occur?

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• How to set the value dynamically to a asp.net file upload control?

  - by SREENIVAS

  I have a fileupload control.I'm selecting a image using the control and saving it in the database.In the edit mode,I need to assign the path of the image in the textbox of the file upload control.Is it possible ?? If so,how could I achieve it?? Regards, Srinivas.

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• ACCESS.Visual basic. Make treeView object

  - by Fantomas

  I have a database(3 tables). I want to build treeView. I don't know how to create recordset and how to retrieve record from it.

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• Stateless NHibernate for querying

  - by JontyMC

  We have a database that is updated via a background process. We are using NHibernate to query the data for display on the web UI, so we don't need change tracking or lazy-loading. If we mark all the mappings as mutable="false", is this the same as using a stateless session?

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• Why isn't the SQLiteOpenHelper called just SQLiteHelper?

  - by Emanuil

  The documentation describes the class as a helper object to create, open, and/or manage a database. Having that in mind wouldn't you say that the name is a little misleading?

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• Get DTS Step Description from TSQL?

  - by vikasde

  I am trying to get the DTS Step Name/Description of a given DTS Package in SQL2000. I am not able to see anything in the msdb database. I can see the initial DTS name, however I dont see anything to get the details. Anybody knows where this info is stored?

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• How to manually build mysql cache

  - by hamstar

  I have a table of over 150,000 rows of which most would be updated daily. I have mysql caching turned on so the pages load faster however everytime the database is updated the pages load slow again, which I assume is the cache building itself again. So at the moment I have resorted to doing a wget -m --delete-after http://localhost/ on the server however this takes about 4 hours to complete and moves something like 13 gig. Is there a better way to do this?

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• Selecting first records of a type in a given period

  - by Emanuil Rusev

  I have a database table that stores user comments: comments(id, user_id, created_at) I want to get from it the number of users that have commented for the first time in the past week. Here's what I have so far: SELECT COUNT(DISTINCT `user_id`) FROM `comments` WHERE `created_at` BETWEEN DATE_SUB(NOW(), INTERVAL 7 DAY) AND NOW() This would give the number of users that have commented, but it would not take into consideration whether these comments are first for these users.

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• free, recommendable Tools for data modeling?

  - by Tim

  Hello, are there free, recommendable Tools for data modeling? ERM/ORM Diagrams Creating database models (SQL SERVER 2005) Simple to use like Visio(no license here) Code generation is only a nice to have (VB.Net)

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• Python: Lits containg tuples and long int.

  - by Yasmin

  I have a list containing a tuples and long integers the list looks like this: table = [(1L,), (1L,), (1L,), (2L,), (2L,), (2L,), (3L,), (3L,)] How do i convert the table to look like a formal list? so the output would be: table = ['1','1','1','2','2','2','3','3'] For information purposes the data was obtained from a mysql database.

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• Add/Edit Columns in DataBound DataGridView

  - by Dave

  I've got a datagridview that is databound from a database table. How do I: a) Edit the displayed value for a column using the values from other columns in the row? (For example, display a URL like: <a href="/url?param=columnA">columnB</a> where columnA is the value from column A and columnB is the value from columnB) b) Add an additional column using values from the other columns (similar to a.)

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• File transfer through MS SQL connection

  - by wasim

  I have a text file sitting on client machine and want to move it to the database server (MS SQL 2008) but I don't have any access to the server except MSSQL client. Can I transfer this file to the server using SQL client connection?

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• Pylons: how to declarative with reflection model definition

  - by Zaar Hai

  Good day! I'm learning Pylons web framework to create web UI for my database. Currently I'm exploring ways to declare my model. The most sexy way seems to be declarative with reflection. Can I use it with Pylons? (Because model/init.py states that I need to define reflection related staff inside init_model) Thanks!

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• Sharing LINQ-to-SQL classes/models between multiple projects in a solution

  - by Maxim Z.

  I have multiple C# projects in a Visual Studio solution right now that will all use the same SQL Server database. What is the proper way to share LINQ-to-SQL classes between projects? I'm considering just copying the dmbl files into each project, but I think that may be too redundant. Is there a better way to approach this?

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• PHP - Language Data

  - by bobrusha

  What's the best way to store language data? Keep it as variables in some kind of lang.php file... $l_ipsum = 'smth'; $l_rand = 'string'; Or select them from a database? I'm in search of your advice.

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• How to import php with javascript?

  - by dcp3450

  I know JavaScript is client side and PHP is server-side. I also know this is an odd question. However, the CMS editor I'm using will not allow php to be stored to the database (it's the same editor used by Dupral). I can store JavaScript though. Can I import a php file with JavaScript. Or rather read the php file, store the content in a variable then out put the content to the screen?

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• question for jsp coding

  - by sheetal

  I am reteriving the set of values inside a table from database in a jsp page then it is in the form of link. Now I want to click that value and move to another jsp page. How to code the program so that it can recognise that value and it can move to the next desired page. But I unable to do that. please help me....

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• Add a foreign key to existing tables in Rails (MySQL)

  - by randombits

  What's the best way to add foreign keys to my existing tables in Rails with an underlying MySQL database? clearly the solution should be done in a migration, as I want this versioned. Otherwise I'd create the constraints myself. I can't seem to find one, conducive response to they above. Again, the tables have already been created with previous migrations. I'm just going back now and adding referential integrity wherever it's applicable.

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• Possible memory leaks in the Java Development Work

  - by harigm

  Can any one let me where the memory leaks can happen when we are developing Java based application. I am aware of Database but apart from that, is there any other possible ways . Please list the scenarios

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