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  • hibernate or eclipselink?

    - by opensas
    It seems like EclipseLink has been chosen by sun as the reference implementation of JPA 2.0, nevertheless I see lots of people continue to use hibernate... I have no experience with none of them, so I wonder which one should I choose for a new project... I'd like to know the pros / cons of each one... thanks a lot ps: btw, and this is part of the answer, there are 3636 questions on stackoverflow about hibernate, and only 68 about eclipselink...

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  • SQL Server: Difference between PARTITION BY and GROUP BY

    - by Mike Mooney
    I've been using GROUP BY for all types of aggregate queries over the years. Recently, I've been reverse-engineering some code that uses PARTITION BY to perform aggregations. In reading through all the documentation I can find about PARTITION BY, it sounds a lot like GROUP BY, maybe with a little extra functionality added in? Are they two versions of the same general functionality, or are they something different entirely?

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  • Insert into a star-schema

    - by shaun
    I've read a lot about star-schema's, about fact/deminsion tables, select statements to quickly report data, however the matter of data entry into a star-schema seems aloof to me. How does one "theoretically" enter data into a star-schema db? while maintaining the fact table. Is a series of INSERT INTO statement within giant stored proc with 20 params my only option (and how to populate the fact table). Many thanks.

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  • dz's Open Flash Chart 2 disabling animation problem (Rails)

    - by greg
    How to disable the startup animation in OFC2? Since I started using the dz build, the on-show animation is on by default, which sucks quite a lot. Neither of these work: graph.animate=false graph.on_show=false Also, dz's build implements the tooltip hover support poorly - the tooltip continues to hover even when the cursor is on another flash object. Has anyone overcome these problems?

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  • Datanucleus 2.x AND Eclipse RCP 3.4

    - by marcolopes
    Hi, ANYONE using Datanucleus (http://www.datanucleus.org/) with ECLIPSE RCP? Eclipse DOES NOT recognize Datanucleus has a PLUGIN, with versions of DN newer than 1.1.0m3 :-( The JARS i currently use, and the LAST ONES being recognized has plugins by eclipse (copied directly to \eclipse\plugins folder) are from datanucleus-accessplatform-rdbms-1.1.0.m3 Specific bundles: datanucleus-rdbms-1.1.0.m3.jar datanucleus-connectionpool-1.0.0.jar datanucleus-core-1.1.0.m3.jar datanucleus-enhancer-1.1.0.m1.jar IS there ANYONE out there using DATANUCLEUS with ECLIPSE? Thanks a lot. marco

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  • need major webcam help for project!!

    - by adam
    hey guys i have a porject where i have to be able to view my webcam on my mobile phone, which happens to be a blackberry bold 9700 but can also get a hold of an i pod touch so either phone is ok to use. the problem that i have is that everytime i do a search for help on this i end up with a program which enevitably asks for money and this is not allowd in the project, ive been trying to stream using vlc player and viewing it on the opera mini for blackberry but no such luck so far, any help would be great thanks a lot

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  • Literals that precede { in spark view engine.

    - by Quintin Par
    I was going through the spark view engine documentation and found a lot of literals showing up in code for which I couldn’t find any references. For e.g. ! , #, $ , !$ , ... What are these for? What do the combinations mean? When do they come into use? Am I missing any more literals that precede or comes after {

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  • linear algebra libraries for clusters

    - by Abruzzo Forte e Gentile
    Hi all I need to develop applications doing linear algebra + eigenvalue + linear equation solutions over a cluster of pcs ( I have a lot of machines available ). I discovered Scalapack libraries but they seem to me developed long time ago. Do you know if these are other libs available that I should learn doing math & linear algebra in a cluster? My language is C++ and off course I am newbie to this topic. Kind Regards to everybody AFG

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  • python simpleftpserver module ftp

    - by iamrohitbanga
    i need a simple implementation of ftp that i can setup quickly for some experiments. is there an equivalent of python -m SimpleHTTPServer for ftp. Google sarch didn't help. i just need a simple implentation of ftp that is easy to setup. (so i don't have to go through the installation trouble for a lot of PC's).

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  • What ORMs work in medium trust?

    - by rcravens
    Environment: C#, MySql, GoDaddy Shared Hosting (medium trust). Assuming the above environment, what ORMs will work in a medium trust environment? Also consider the following features: minimal code changes to the ORM library. minimal disabling of features to run in medium trust. Bonus feature: fluent interface There are a lot of ORMs to choose from. What would your selection be?

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  • How to use Python list comprehension (or such) for retrieving rows when using MySQLdb?

    - by Erik Nygren
    Hey all, I use MySQLdb a lot when dealing with my webserver. I often find myself repeating the lines: row = cursor.fetchone() while row: do_processing(row) row = cursor.fetchone() Somehow this strikes me as somewhat un-pythonic. Is there a better, one-line way to accomplish the same thing, along the lines of inline assignment in C: while (row = do_fetch()) { do_processing(row); } I've tried figuring out the syntax using list comprehensions, but I can't seem to figure it out. Any recommendations? Thanks, Erik

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  • Java without gc - io

    - by Dan
    Hi Guys I would like to run a Java program with garbage collection switched off. Managing memory in my own code is not so difficult. However the program needs quite a lot of I/O. Is there any way (short of using JNI for all I/O operations) that I could achieve this using pure Java? Thanks Daniel

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  • Show jQModal window on page load

    - by Machi
    Hi there, I'm playing with jQModal plugin and trying to display its window right after the page is loaded. I used this code in $(document).ready(function(): $('#letak').jqm({ overlay: 70, autofire: true }); autofire setting should do the trick but unfortunately it doesn't work. Works perfectly fine when I click at trigger link. Example: http://bz.machi.cz/ Am I doing something wrong? Thanks a lot, Jakub

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  • Connection Pooling in J2SE?

    - by Zombies
    It is hard to find a resource on this without finding J2EE, but here is what I am looking for: All I have is a standard J2SE app, it makes a lot of DB connections. I simply need to make use of a connection pool. Any suggestions?

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  • Create symbolic link to files on an FTP server

    - by Kevin Burke
    I do a lot of work with files hosted on an FTP server. Currently to edit a file on the server I have to open the server in Cyberduck, navigate with the mouse to the folder I want and then click "Edit," which opens a temporary file. Anyway, editing files on the server would be way easier if I could use the terminal to navigate through the file directory and edit files. Is there a way to create a symbolic link in my home directory to an FTP server? edit: I'm on a Mac

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  • linked server issue in SQL Server

    - by George2
    Hello everyone, I am using SQL Server 2008 with linked server feature. I noticed there are a lot of providers for linked server which could be found from SSMS, like SQLNCLI10, OLE DB, etc. How to know which provider a specific linked server instance is using? thanks in advance, George

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  • JQgrid : specific value from a selected row

    - by bsreekanth
    Hello, how to get a value of a (hidden) column, from the selected row. that is, the cell value needs to be from the cell identied by colName, and the selected row (not using multi select). From the API i see the method getGridParam("selrow") for reading the row, may be able to combine with other methods.. but, any convenient method available? a code snippet would save lot of time... \ thanks.

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