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MySQL Server has gone away when importing large sql file
...600 seconds (you can
tweak/decrease this value when error 2006 is gone), then sudo
/etc/init.d/mysql restart. I didn't check, but the default value for
wait_timeout might be around 28800 seconds (8 hours).
Server dropped an incorrect or too large packet. If mysqld gets a packet that is too l...
Why do we copy then move?
...ass an lvalue, on the other hand, that lvalue will be copied into str, and then moved into data.
So to sum it up, two moves for rvalues, one copy and one move for lvalues.
What would be the reason for the author to decide to make a copy then a move?
First of all, as I mentioned above, the fir...
Why are side-effects modeled as monads in Haskell?
...If we take all the effects it produces as the input and output parameters, then the function is pure to the outside world.
So, for an impure function
f' :: Int -> Int
we add the RealWorld to the consideration
f :: Int -> RealWorld -> (Int, RealWorld)
-- input some states of the whole world...
Check if an apt-get package is installed and then install it if it's not on Linux
... a note: dpkg -s returns zero if a package was installed and then removed - in that case it's Status: deinstall ok config-files or similar, so it's "ok" - so to me, this is not a safe test. dpkg-query -l doesnt seem to return a useful result in this case either.
...
Rename package in Android Studio
...is:
For example, if you want to change com.example.app to my.awesome.game, then:
In your Project pane, click on the little gear icon ( )
Uncheck / De-select the Compact Empty Middle Packages option
Your package directory will now be broken up in individual directories
Individually select each ...
How do I include a JavaScript file in another JavaScript file?
... if your default is ESM.)
Using package.json:
{
"type": "module"
}
Then module.js:
export function hello() {
return "Hello";
}
Then main.js:
import { hello } from './module.js';
let val = hello(); // val is "Hello";
Using .mjs, you'd have module.mjs:
export function hello() {
ret...
EC2 Instance Cloning
...
You can make an AMI of an existing instance, and then launch other instances using that AMI.
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How to calculate a Mod b in Casio fx-991ES calculator
... 2. Or try 54 / 7 which is 7 5/7 (mod is 5).
If you don't see any fraction then the mod is 0 like 50 / 5 = 10 (mod is 0).
The remainder fraction is shown in reduced form, so 60 / 8 will result in 7 1/2. Remainder is 1/2 which is 4/8 so mod is 4.
EDIT:
As @lawal correctly pointed out, this method i...
How to export a mysql database using Command Prompt?
...go to command & type in:
set path=c:\wamp\bin\mysql\mysql5.1.36\bin
Then use this command to export your database:
mysqldump -u YourUser -p YourDatabaseName > wantedsqlfile.sql
You will then be prompted for the database password.
This exports the database to the path you are currently ...
How to use java.net.URLConnection to fire and handle HTTP requests?
...r what encoding the parameters are in. If you don't send any query string, then you can leave the Accept-Charset header away. If you don't need to set any headers, then you can even use the URL#openStream() shortcut method.
InputStream response = new URL(url).openStream();
// ...
Either way, if the...