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Questions tagged exists

21 questions

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56
votes
10
answers

VBA check if file exists

excel vba file exists file-exists
asked 2013-05-03T03:43:38.483
11
votes
1
answers

SqlAlchemy Core and bare exists query

python sqlalchemy exists
asked 2013-03-13T09:39:42.053
17
votes
4
answers

How to wait until File.Exists?

c# multithreading file sleep exists
asked 2013-02-11T16:30:21.550
236
votes
5
answers

Linq select objects in list where exists IN (A,B,C)

c# linq list linq-to-objects exists
asked 2013-01-10T11:53:33.117
26
votes
1
answers

NodeJS + Mongo: Insert if not exists, otherwise - update

node.js mongodb insert exists updates
asked 2012-10-22T11:16:54.340
16
votes
5
answers

How to check whether a tuple exists in a Python list?

python list exists
asked 2012-03-11T11:29:22.303
15
votes
3
answers

What is easier to read in EXISTS subqueries?

sql syntax exists
asked 2011-10-10T08:24:35.690
55
votes
2
answers

IF EXISTS in T-SQL

sql-server t-sql exists
asked 2011-09-07T00:36:31.583
26
votes
7
answers

How To Check If A Method Exists At Runtime In Java?

java methods try-catch exists
asked 2011-08-14T17:56:23.443
13
votes
5
answers

Isn't Android File.exists() case sensitive?

android file case-sensitive exists mkdir
asked 2011-06-28T06:54:44.250
681
votes
27
answers

How can I check if an element exists in the visible DOM?

javascript dom variables element exists
asked 2011-04-12T02:19:05.483
25
votes
6
answers

C++ - Determining if directory (not a file) exists in Linux

c++ linux directory exists
asked 2011-02-12T21:43:31.303
90
votes
3
answers

How to check if a directory/file/symlink exists with one command in Ruby

ruby file directory symlink exists
asked 2011-02-04T11:39:15.457
9
votes
3
answers

The purpose of SQL's EXISTS and NOT EXISTS

sql mysql subquery exists not-exists
asked 2010-12-16T21:40:31.357
370
votes
9
answers

INSERT IF NOT EXISTS ELSE UPDATE?

sqlite insert exists upsert merge-conflict-resolution
asked 2010-09-03T10:47:14.647
14
votes
3
answers

Testing for the existence of a field in a class

python class exists
asked 2010-04-20T05:37:10.123
13
votes
5
answers

jQuery: Check if jQuery object contains (includes) exact DOM element

jquery element contains exists selected
asked 2010-02-07T20:52:51.563
129
votes
8
answers

Best way to check if object exists in Entity Framework?

entity-framework linq-to-entities exists
asked 2009-11-26T08:28:41.653
24
votes
5
answers

Is File.Exists an expensive operation?

.net file io exists
asked 2009-11-10T12:22:00.750
23
votes
4
answers

How to check if a file exists on a server using c# and the WebClient class

c# http file webclient exists
asked 2009-05-06T16:20:22.727
135
votes
5
answers

is_file or file_exists in PHP

php file exists
asked 2009-04-27T09:57:58.727