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INSERT IF NOT EXISTS ELSE UPDATE?
I've found a few "would be" solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
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How to get unique values in an array
...de an example that uses no libraries. This requires two new prototype functions, contains and unique
Array.prototype.contains = function(v) {
for (var i = 0; i < this.length; i++) {
if (this[i] === v) return true;
}
return false;
};
Array.prototype.unique = function() {
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How to set UICollectionViewDelegateFlowLayout?
A UIViewController maintains a reference to a UICollectionView. The controller should modify the built-in flow layout using the UICollectionViewDelegateFlowLayout.
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ssl_error_rx_record_too_long and Apache SSL [closed]
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The link mentioned by Subimage was right on the money for me. It suggested changing the virtual host tag, ie, from <VirtualHost myserver.example.com:443> to <VirtualHost _default_:443>
Error code: ssl_error_rx_record_too_...
Iterate a list as pair (current, next) in Python
...h a and b can traverse the original iterator independently - the izip function takes the two iterators and makes pairs of the returned elements, advancing both iterators at the same pace.
One caveat: the tee() function produces two iterators that can advance independently of each other, but it come...
How to dynamically change a web page's title?
...ching the view he's on. For most web-apps etc. it seems like a good sollution to keep using this. I might have overlooked a different function though?
– Mathijs Segers
Aug 7 '13 at 8:55
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How to convert an Stream into a byte[] in C#? [duplicate]
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Call next function like
byte[] m_Bytes = StreamHelper.ReadToEnd (mystream);
Function:
public static byte[] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{
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How to Generate unique file names in C#
...le threads/processes). This makes it not suitable for temp filename generation. Generating X..1..N may be suitable for user-facing tasks (ie. copy in Explorer), but is dubious for server work.
– user2864740
May 24 '18 at 16:57
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Can pandas automatically recognize dates?
...to be defined manually. In such a case you can also add a date parser function, which is the most flexible way possible.
Suppose you have a column 'datetime' with your string, then:
from datetime import datetime
dateparse = lambda x: datetime.strptime(x, '%Y-%m-%d %H:%M:%S')
df = pd.read_csv(infile...
$location / switching between html5 and hashbang mode / link rewriting
I was under the impression that Angular would rewrite URLs that appear in href attributes of anchor tags within tempaltes, such that they would work whether in html5 mode or hashbang mode. The documentation for the location service seems to say that HTML Link Rewriting takes care of the hashbang s...