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How to set environment variable for everyone under my linux system?
...shell, or as a non-interactive
shell with the --login option, it
first reads and executes commands from
the file /etc/profile, if that file
exists. After reading that file, it
looks for ~/.bash_profile,
~/.bash_login, and ~/.profile, in that
order, and reads and executes commands
fro...
How can I access the MySQL command line with XAMPP for Windows?
... mysql), else it would not see mysql.exe (yes, I had done the cd command already).
– dotNET
Nov 29 '19 at 18:46
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Spring RestTemplate timeout
...turn restTemplateBuilder
.setConnectTimeout(...)
.setReadTimeout(...)
.build();
}
}
For Spring Boot <= 1.3
@Configuration
public class AppConfig
{
@Bean
@ConfigurationProperties(prefix = "custom.rest.connection")
public HttpComponentsClientHtt...
Python: How would you save a simple settings/config file?
... 3.x
from configparser import ConfigParser
config = ConfigParser()
config.read('config.ini')
config.add_section('main')
config.set('main', 'key1', 'value1')
config.set('main', 'key2', 'value2')
config.set('main', 'key3', 'value3')
with open('config.ini', 'w') as f:
config.write(f)
The file f...
MySQL vs MongoDB 1000 reads
... (the actual binary json document)
So a b-tree lookup, and a binary page read. Log(n) + 1 IOs. If the indexes can reside entirely in memory, then 1 IO.
In MySQL with 20 tables, you have to perform:
One index lookup on the root table (again, assuming the entity is fetched by id)
With a clustered...
Why is i++ not atomic?
... which uses the ll and sc: load-linked, and store-conditional. Load-linked reads the word, and store-conditional stores the new value if the word has not changed, or else it fails (which is detected and causes a re-try).
sha...
Why is it common to put CSRF prevention tokens in cookies?
... whole issue with CSRF and appropriate ways to prevent it. (Resources I've read, understand, and agree with: OWASP CSRF Prevention CHeat Sheet , Questions about CSRF .)
...
What's the fuss about Haskell? [closed]
... program to copy a file --
import System.Environment
main = do
--read command-line arguments
[file1, file2] <- getArgs
--copy file contents
str <- readFile file1
writeFile file2 str
OK, it's a short, readable program. In that sense it's better t...
Build a simple HTTP server in C [closed]
...tpd. If you want to write it from scratch, then you'll want to thoroughly read RFC 2616. Use BSD sockets to access the network at a really low level.
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Effect of NOLOCK hint in SELECT statements
...on't care what state it is in, and don't bother holding it still while you read from it. It is all at once faster, less resource-intensive, and very very dangerous.
You should be warned to never do an update from or perform anything system critical, or where absolute correctness is required using ...