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SQL/mysql - Select distinct/UNIQUE but return all columns?
... Krakow
France Paris
France Marseille
Italy Milano
Now the query
SELECT country FROM locations
GROUP BY country
will result in:
--country--
France
Poland
Italy
However, the following query
SELECT country, city FROM locations
GROUP BY country
...throws an error in...
What is stability in sorting algorithms and why is it important?
...vince yourself of that. (by the way, that algorithm is called radix sort)
Now to answer your question, suppose we have a list of first and last names. We are asked to sort "by last name, then by first". We could first sort (stable or unstable) by the first name, then stable sort by the last name....
How to refresh Android listview?
... was keeping the array in memory for certain feature reasons. To fix it I now call adapter.clear(), and adapter.addAll(Array<T>) before calling notifyDataSetChanged()
– Michael DePhillips
Feb 26 '14 at 23:09
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What is the best java image processing library/approach? [closed]
...
I know this question is quite old, but as new software comes out it does help to get some new links to projects that might be interesting for folks.
imgscalr is pure-Java image resizing (and simple ops like padding, cropping, r...
pip installing in global site-packages instead of virtualenv
...anged it, activated the virtualenv and installed the Markdown package. Pip now installs in the virtualenv site-packages folder instead of the global one.
– ƘɌỈSƬƠƑ
Jan 6 '14 at 22:45
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Fast way to get image dimensions (not filesize)
...o,$iAlto,$iAncho);//The Dimensions will stored in iFormato,iAlto,iAncho
Now these functions/method using JAVA:
private void ByteStreamImageString(byte[] ByteStream,int[] Frmt,int[] High,int[] Wide) {
High[0] = 0;
Wide[0] = 0;
Frmt[0] = -1;
this.HexImageString = "Error";
if ...
How to make a website secured with https
...in, so that the employees can connect to app from various locations. (Till now I have built web apps that are hosted internally only)
...
How to import local packages without gopath
...t" way to do it. You should be using vendor capabilities, vgo, or dep (for now) that are enabled by default in Go 1.6; see. You basically add your "external" or "dependent" packages within a vendor directory; upon compilation the compiler will use these packages first.
Found. I was able import lo...
Hidden features of HTML
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This is a neat feature I did not know about!
– Chrisb
Jul 27 '09 at 15:52
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SQL Server String or binary data would be truncated
... 8152 with 2628, either at the session or server level.
Note that for now, even in SQL Server 2019 CTP 2.0 the same trace flag 460 needs to be enabled. In a future SQL Server 2019 release, message 2628 will replace message 8152 by default.
SQL Server 2017 CU12 also supports this feature.
I...