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Count(*) vs Count(1) - SQL Server
..._GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000 rows
This query:
SELECT COUNT(SYS_GUID())
FROM t_even
runs for 48 seconds, since the function needs to evaluate each SYS_GUID() returned to make sure it's not a NULL.
However, t...
Execute Python script via crontab
...orial here.
Look at point 3 for a guide on how to specify the frequency.
Based on your requirement, it should effectively be:
*/10 * * * * /usr/bin/python script.py
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jQuery Validate - require at least one field in a group to be filled
...ch individual form. If you go to this page (jquery.bassistance.de/validate/demo/milk) and click "show script used on this page" you will see an example. I take it one step further: I declare an array called "rules", then separately, I use them with var validator = $('#formtovalidate').validate(rules...
Error message 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions prop
... }
string errorMessage = sb.ToString();
//Display or log the error based on your application.
}
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What's the difference between SCSS and Sass?
...ks favor scss over sass by default - Angular, React, Vue. Any tutorials or demos will generally use scss e.g create-react-app facebook.github.io/create-react-app/docs/…
– Drenai
Aug 11 '19 at 23:42
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do { … } while (0) — what is it good for? [duplicate]
...n are fairly rare, but they do exist. One which springs to mind is a menu-based console application:
do {
char c = read_input();
process_input(c);
} while (c != 'Q');
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System.Timers.Timer vs System.Threading.Timer
...nt sinks
at regular intervals. The class is intended for use as a server-based
or service component in a multithreaded environment; it has no user
interface and is not visible at runtime.
System.Threading.Timer,
which executes a single callback method on a thread pool thread at
regular i...
Can I use a binary literal in C or C++?
...ortable itoa function, or implement your own.
Unfortunately you cannot do base 2 formatting with STL streams (since setbase will only honour bases 8, 10 and 16), but you can use either a std::string version of itoa, or (the more concise, yet marginally less efficient) std::bitset.
#include <boo...
How To: Best way to draw table in console app (C#)
...n now find and improve the following code in github!
I wrote this class based on some ideas here. The columns width is optimal, an it can handle object arrays with this simple API:
static void Main(string[] args)
{
IEnumerable<Tuple<int, string, string>> authors =
new[]
{
...
Font Awesome not working, icons showing as squares
...
If you use the Data URI Scheme with a base64 version of the font (can easily convert online), then you don't have to worry about proper file path and resource hosting.
– RenaissanceProgrammer
Apr 21 '15 at 19:13
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