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What are file descriptors, explained in simple terms?
...hat file and store the information about that opened file. So if there are 100 files opened in your OS then there will be 100 entries in OS (somewhere in kernel). These entries are represented by integers like (...100, 101, 102....). This entry number is the file descriptor.
So it is just an integer...
How to check if a file is a valid image file?
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Brian R. BondyBrian R. Bondy
303k110110 gold badges566566 silver badges614614 bronze badges
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Find a value anywhere in a database
... drop it each time.
CREATE PROC SearchAllTables
(
@SearchStr nvarchar(100)
)
AS
BEGIN
-- Copyright © 2002 Narayana Vyas Kondreddi. All rights reserved.
-- Purpose: To search all columns of all tables for a given search string
-- Written by: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripo...
Multiline bash commands in makefile
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answered Apr 12 '12 at 10:13
Eldar AbusalimovEldar Abusalimov
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Refresh image with a new one at the same url
...L, such as:
newImage.src = "image.jpg?t=" + new Date().getTime();
Pros: 100% reliable, quick & easy to understand and implement.
Cons: Bypasses caching altogether, meaning unnecessary delays and bandwidth use whenever the image doesn't change between views. Will potentially fill browser cach...
Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...in here, here, here, and here, no clue. I still get the same error:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
I'm able to connect normally, show all databases, do selects and inserts, create and add users, and but when it comes to GRANT, I'm screwed up. T...
'Incomplete final line' warning when trying to read a .csv file into R
...file, by using command below:
json_data<-fromJSON(paste(readLines("json01.json"), collapse=""))
; and I resolve it by my above method.
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
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answered Jun 9 '10 at 20:07
ceejayozceejayoz
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ASP.NET MVC: Is Controller created for every request?
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104
A Controller is created for every request by the ControllerFactory (which by default is the De...
Order discrete x scale by frequency/value
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106
Try manually setting the levels of the factor on the x-axis. For example:
library(ggplot2)
#...