error (20,834)


Throw an error in a MySQL trigger

Throw an error in a MySQL trigger

If I have a trigger before the update on a table, how can I throw an error that prevents the update on that table?…


linux - error_log per Virtual Host?

On one Linux Server running Apache and PHP 5, we have multiple Virtual Hosts with separate log files. We cannot seem to separate the php error_log between virtual hosts. Overriding this setting in the…


sql server - Editing database records by multiple users

I have designed database tables(normalised, on an MS SQL server) and created a standalone windows front end for an application that will be used by a handful of users to add and edit information. We…


Why am I getting a double free error with realloc()?

I've tried to write a string replace function in C, which works on a char*, which has been allocated using malloc(). It's a little different in that it will find and replace strings, rather than ch…


Reducing duplicate error handling code in C#?

I've never been completely happy with the way exception handling works, there's a lot exceptions and try/catch brings to the table(stack unwinding, etc.), but it seems to break a lot of the OO model…



Have you ever encountered a query that SQL Server could not execute because it referenced too many tables?

Have you ever seen any of there error messages?-- SQL Server 2000 Could not allocate ancillary table for view or function resolution. The maximum number of tables in a query(256) was exceeded.-…


PHP Error-Uploading a file

I'm trying to write some php to upload a file to a folder on my webserver. Here's what I have:<?php if(!empty($_FILES['file']['tmp_name'])){ move_uploaded_file($_FILES['file']['tmp_n…


language agnostic - How to know when to send a 304 Not Modified response

I'm writing a resource handling method where I control access to various files, and I'd like to be able to make use of the browser's cache. My question is two-fold: Which are the definitive HTTP he…


SQL Server 2005 and 2008 on same developer machine?

Has anyone tried installing SQL Server 2008 Developer on a machine that already has 2005 Developer installed? I am unsure if I should do this, and I need to keep 2005 on this machine for the foreseea…


How can I Java webstart multiple, dependent, native libraries?

Example: I have two shared objects(same should apply to.dlls). The first shared object is from a third-party library, we'll call it libA.so. I have wrapped some of this with JNI and created my own…




not the how for failed example file with code android