Search Results

Search found 31293 results on 1252 pages for 'database agnostic'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 803/1252 | < Previous Page | 799 800 801 802 803 804 805 806 807 808 809 810  | Next Page >

  • need an empty string, but getting an exception in ruby on rails

    - by Jon
    controller @articles = current_user.articles view <% @articles.each do |article| %> <%= link_to "#{article.title} , #{article.author.name}" articles_path%> <% end %> Sometimes the article has no author, so is null in the database, which results in the following error You have a nil object when you didn't expect it! The error occurred while evaluating nil.name I still want to output the article title in this scenario, whats the best way to do this please?

    Read the article

  • Negative Primary Keys

    - by bjax
    Are there any repercussions using Negative Primary Keys for tables (Identity Increment -1, Identity Seed -1 in SQL Server 2005)? The reason for this is we're creating a new database to replace an existing one. There are similar tables between the two databases and we'd like the "source" of the information to be transparent to our applications. The approach is to create views that unions tables from both databases. Negative PKs ensures the identities don't overlap.

    Read the article

  • Change MS Access to Exclusive on the fly

    - by Nate
    I have a process in an MS Acess database that the users will usually run once daily, but could be more or less. It takes several minutes and requires temporary exclusive access because it deletes and recreates the main table. I have code to check to see if there are other users in the db before the process starts, but is there a way to change the access to "exclusive" at the beginning, and then change it back to open access at the end? Thanks for any help.

    Read the article

  • How to create Chat application using Servlets & JSP

    - by Crazy boy
    I want to create chat application using Servlets & JSP. May I know how can I create chat application as I have never created before? How much knowledge I need to have to create chat application? Is there any need of networking API to create chat application? What's the design pattern I need to follow to create that application? Is there any need of database?

    Read the article

  • The action or event has been blocked by Disabled Mode

    - by mattruma
    I am using Microsoft Access 2007 to move and massage some data between two SQL Servers. Yesterday everything was working correctly, I was able to run queries, update data, and delete data. Today I opened up the Access database to finish my data migration and am now receiving the following message when I try to run some update queries: The action or event has been blocked by Disabled Mode. Any ideas what this is talking about?

    Read the article

  • Communicating with remote server in Android

    - by primal
    Hi, As part of the college mini-project, I am developing a micro-blogging platform for Android. I am planning to use Django framework in python to handle the communication between Android and remote server so as to make database API independent. I heard its best practice to use HTTP methods for the communication. Which is the best site/book to learn using HTTP methods for Android? I

    Read the article

  • In php, Prepare string and create XML/RSS Feed

    - by Bill
    I want to create my own RSS/XML feed. I fetch data from the database to display, but keep getting invalid character errors. If the string has an ampersand or other strange characters in it, the XML will be invalid. I tried using urlencode and htmlentities, but these don't capture all possible characters which need to be escaped. Does anyone know of a PHP function which will prepare a string for XML output?

    Read the article

  • How to List Some Table Records in Windows Application? - C#.NET

    - by user327387
    Which control should i use? I don't want the records to be displayed on the Windows Application list in the same way records displayed in database as this: I want the records to be displayed statically and a user when right click a record, he/she gets Edit and Remove choices. Of course there has to be static headers at the top. I hope my request is clear. I'm using C#.NET - VS 2008

    Read the article

  • what is wrong with connection string

    - by Hakan
    Can any one help me with this connection string. I can't manage how to fix. Dim constring As String Dim con As SqlCeConnection Dim cmd As SqlCeCommand constring = "(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + \\database.sdf;Password=pswrd;File Mode=shared read" con = New SqlCeConnection() con.Open() Thanks

    Read the article

  • Where does the creation of permissions live in Django?

    - by lazerscience
    I need to do some debugging, because the permissions for one of my models are created wrongly. So I tried to find the piece of code where Django creates the permissions upon syncdb and writes them in the database, but I haven't been successful at all; maybe I just overlooked the right lines of code, but if somebody can point me out the right module / line of code where this happens I'd be very happy!

    Read the article

  • Auto refresh when new user comes online

    - by Luke
    Hello. I have a table in the database which includes all active users. I then have a user list which needs refreshing to see who is the latest users online. Whats the best way to tackle this? The user list is always just who is in the active_users table. Thanks for reading.

    Read the article

  • how to Invoke User-Defined Functions That Return a Table Data Type

    - by nectar
    here my code- create function dbo.emptable() returns Table as return (select id, name, salary from employee) go select dbo.emptable() error: Msg 4121, Level 16, State 1, Line 1 Cannot find either column "dbo" or the user-defined function or aggregate "dbo.emptable", or the name is ambiguous. while when I run sp_helptext emptable it shows- create function dbo.emptable() returns Table as return (select id, name, salary from employee) it means function exists in database then why it is giving such error?

    Read the article

  • cx_Oracle and output variables

    - by Tim
    I'm trying to do this again an Oracle 10 database: cursor = connection.cursor() lOutput = cursor.var(cx_Oracle.STRING) cursor.execute(""" BEGIN %(out)s := 'N'; END;""", {'out' : lOutput}) print lOutput.value but I'm getting DatabaseError: ORA-01036: illegal variable name/number Is it possible to define PL/SQL blocks in cx_Oracle this way?

    Read the article

  • Messaging problems

    - by Luke
    I am creating a messaging system but the problem I face is that when users try and enter certain characters like ' into the message, the database doesnt want to allow it. Any idea what this is?

    Read the article

  • How to get SQL Profiler to monitor trigger execution

    - by firedfly
    I have a trace setup for SQL Server Profiler to monitor SQL that is executed on a database. I recently discovered that trigger execution is not included in the trace. After looking through available events for a trace, I do not see any that look like they would include trigger execution. Does anyone know how to setup a trace to monitor the execution of triggers?

    Read the article

  • finding process bottlenecks rails/ruby

    - by Ben
    I just got started with rails, and when I testing in development mode, I see in the logs that my Mailer action is taking 1175ms. Is there anyway to find out what exactly is the slow step? Also, there is a line that says (View:2, DB:1). I assume the DB means number of database lookups, but what about the view?

    Read the article

  • Create a popup window in Mediawiki

    - by Karthick
    I am customising the mediawiki for our internal portal. I need to open a popup window on clicking a link in the wikitext. This popup would take information from the mysql database and display a movie clip or a document or something. Anyone knows how this can be done?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 799 800 801 802 803 804 805 806 807 808 809 810  | Next Page >