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Select random row from a sqlite table
...it, as you still won't be able to optimize the OFFSET for joins, order by, etc... (and without ORDER BY the order is undefined.)
– Yakov Galka
Jun 13 '16 at 14:57
add a commen...
How do you implement a class in C? [closed]
...uct Queue Queue;
void push(Queue* q, int element);
void pop(Queue* q);
// etc.
///
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Usage of protocols as array types and function parameters in swift
...e objects using '===' operator.
I understand this won't work for structs, etc., but it was good enough in my case.
protocol SomeProtocol: class {
func bla()
}
class SomeClass {
var protocols = [SomeProtocol]()
func addElement(element: SomeProtocol) {
self.protocols.append(el...
How do I clear the terminal screen in Haskell?
...s functions for clearing the screen, displaying colors, moving the cursor, etc. Using it to clear the screen is easy: (this is with GHCI) import System.Console.ANSIclearScreen
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How to find the php.ini file used by the command line?
...t my answer...in my case I type sudo find / -iname php.ini and it founds /etc/php/7.0/apache2/php.ini the right place of the right php.ini config file of my machine that it wasn't found by php --ini or php -i | grep php.ini (both found /etc/php/7.0/cli/php.ini)
– NineCattoRule...
Difference between Pig and Hive? Why have both? [closed]
..., and it also gives you metastore for information about your data (schema, etc) which is useful as a central information about your data.
I use both Hive and Pig, for different queries (I use that one where I can write query faster/easier, I do it this way mostly ad-hoc queries) - they can use the ...
Getting time elapsed in Objective-C
...on of the output on my iPhone 6 (perhaps this was not an issue on iPhone 4/etc or I just never noticed it). Note that by not performing that division first, there is some risk of overflow if the numerator of the timebase is quite large. If anybody is curious, there is a link with much more informati...
Are email addresses case sensitive?
...nsitive manner" Especially when checking for duplicates in user-databases, etc.
– Geert-Jan
Nov 16 '13 at 23:00
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How to rename a table in SQL Server?
...ences to that table that may exist in stored procedures, views, functions, etc. A quick google can find one of the many tools that can do this for you. Or you can use a script that finds a given string in all these objects, and paste them as ALTER statements, and do a find-and-replace, then run them...
How to “log in” to a website using Python's Requests module?
...ormally, it simply adds persistence, allowing you to store and use cookies etc.
Assuming your login attempt was successful, you can simply use the session instance to make further requests to the site. The cookie that identifies you will be used to authorise the requests.
Example
import requests
...