exists

iPhone SDK Remote file exists, without cache

I need to check if a file exists on my server without using cache. The methods I have used are all returning a 200, even if the file does not exist, so I can only assume there is a cache problem, or theres a problem with my code. Heres my code: for arguments sake..the URL is changed in this example, but the url is correct in my code. N...

how to check if a URL exists or not - error 404 ? (using php)

how to check if a URL exists or not - error 404 ? (using php) <?php $url = "http://www.faressoft.org/"; ?> ...

The old IN vs. Exists vs. Left Join (Where ___ Is or Is Not Null); Performance

I have found my self in quite a pickle. I have tables of only one column (supression or inclusion lists) that are more or less varchar(25) but the thing is I won't have time to index them before using them in the main query and, depending how inportant it is, I won't know how many rows are in each table. The base table at the heart of al...

SQLite - INSERT IF NOT EXISTS ELSE UPDATE ??

Hi. I've found a few "would be" solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite. I have a table defined as follows: CREATE TABLE Book ID INTEGER PRIMARY KEY AUTOINCREMENT, Name VARCHAR(60) UNIQUE, TypeID INTEGER, Level INTEGER, Seen INT...

Check if xml node exists in PHP

I have this simplexml result object: object(SimpleXMLElement)#207 (2) { ["@attributes"]=> array(1) { ["version"]=> string(1) "1" } ["weather"]=> object(SimpleXMLElement)#206 (2) { ["@attributes"]=> array(1) { ["section"]=> string(1) "0" } ["problem_cause"]=> object(SimpleXMLElement)#94 (1) { ["@attr...

exist xml database - full text index using Lucene

Hi i using Lucene to create index in my xml eXist database. In this time need to get all index (want create tag). I should use xpath query? or need write something in java? ...

External App: Check if an Outlook Folder exists

SOLUTION BELOW I've been looking all over the net to find a solution for this, but it seems quite hard to get an answer for this in Delphi... Skip this if you're familiar with Outlook Some explanation before: The Contacts Folder in Outlook is organized like a foldertree in Windows. The Contacts are stored in the Contacts Folder itself...

Perl - If table does not exist

I'm currently using the following which works but throws an error every time the table is created (as it is first trying to insert into a db which does not exist and returning false). $result = $dbh->prepare("INSERT INTO `". $host ."` (URL) VALUES ('$href')"); if( ! $result->execute() ){ $result = $dbh->prepare("CREATE TABLE `" . $h...

Does File exist in Python?

Possible Duplicate: Pythonic way to check if a file exists? How can Check if file exist with python 2.6? If file exists run exec redo.py. If file does not exists exec file start.py The file is a 0kb, but name Xxx100926.csv Ans seems to be from os path import exists from __future__ import with_statement if exists('...

Strangeness with bash not operator

I'm trying to determine if a file or directory doesn't exist. I tried the following commands to see if a file does exist and they work correctly: if [ -a 'settings.py' ]; then echo 'exists'; fi exists #output if [ -a 'foo' ]; then echo 'exists'; fi #outputs nothing But when I try this: if [ ! -a 'settings.py' ]; then echo 'does not e...

Checking if a directory exist in Unix (system call)

Hello, I am not able to found a solution to my problem online. I would like to call a function in Unix, pass in the path of a directory, and know if it exists. opendir() returns an error if a directory does not exists, but my goal is not to actually open, check the error, close it if no error, but rather just check if a file is a direc...

Using ant to check if a set of files exists on disk

I'm wondering if there's some way to use ant to check if multiple files are available on disk. Currently, I have an ant task that looks very much like this: <target name="copyArtworkToOutputDir" if="artworkContent"> <copy todir="${imageOutputDir}" failonerror="true"> <fileset dir="${sourceDir}" includesfile="${buildDir}/artworkli...

Stored procedure if exists not giving correct answer

I created a sql 2005 stored proc to tell me if the CRID I am searching for is approved by the supervisor. [SuperApproved] is a bit, [CRID] is char(36). Even if the CRID doesn't exist, I am still getting 1. Any help in writing this? USE [cr_Saturn2] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO -- =================================...

How can I test if a filename matching a pattern exists in Perl?

Can I do something like this in Perl? Meaning pattern match on a file name and check whether it exists. if(-e "*.file") { <Do something> } I know the longer solution of asking system to list the files present; read it as a file and then infer whether file exists or not. ...

MYSQL - Difference between IN and EXIST

MySql question: What is the difference between [NOT] IN and [NOT] EXIST when doing subqueries in MySql. ...