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How important is the order of columns in indexes?
I've heard that you should put columns that will be the most selective at the beginning of the index declaration. Example:
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How to set background color of a View
I'm trying to set the background color of a View (in this case a Button).
20 Answers
2...
How Many Seconds Between Two Dates?
...ime() - t2.getTime();
var Seconds_from_T1_to_T2 = dif / 1000;
var Seconds_Between_Dates = Math.abs(Seconds_from_T1_to_T2);
A handy source for future reference is the MDN site
Alternatively, if your dates come in a format javascript can parse
var dif = Date.parse(MM + " " + DD + ", " + YYYY) - D...
Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
I keep getting the following error:
17 Answers
17
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Get specific line from text file using just shell script
I am trying to get a specific line from a text file.
10 Answers
10
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How do you append an int to a string in C++? [duplicate]
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F14
2755 bronze badges
answered Sep 25 '13 at 6:39
headmyshoulderheadmyshoulder
5,42022...
Oracle query to fetch column names
I have a mySQL query to get columns from a table like this:
12 Answers
12
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Password reset for Azure database
I have a new Azure account. I am able to log into the 'manage' page as admin, but I forgot the password to one of my databases. I would like to reset the password on that one DB. How do I do that? Microsoft doesn't seem to have a KB on that - at least not one I could find. Thx.
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Get all Attributes from a HTML element with Javascript/jQuery
... to use the attributes node list on the element itself:
var el = document.getElementById("someId");
for (var i = 0, atts = el.attributes, n = atts.length, arr = []; i < n; i++){
arr.push(atts[i].nodeName);
}
Note that this fills the array only with attribute names. If you need the attribut...
Centering text in a table in Twitter Bootstrap
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The .table td 's text-align is set to left, rather than center.
Adding this should center all your tds:
.table td {
text-align: center;
}
@import url('https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css');
table...