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SQL update fields of one table from fields of another one
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The question is old but I felt the best answer hadn't been given, yet.
Is there an UPDATE syntax ... without specifying the column names?
General solution with dynamic SQL
You don't need to know any column names except for some unique column(s) to join on (i...
How to show math equations in general github's markdown(not github's blog)
...t.
Tell me how to show math symbols in general github markdown.
Your best bet would be to find a website similar to yuml.me which can generate on-the-fly images from by parsing the provided URL querystring.
Update
I've found some sites providing users with such service: codedogs.com (no long...
Modify SVG fill color when being served as Background-Image
...e overhead, because I have to hardcoded all svg items, I think this is the best solution for a while. Thanks
– Adriano Rosa
Oct 19 '15 at 15:16
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In mongoDb, how do you remove an array element by its index?
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Read the document from the database
Update the document and remove the item in the array
Replace the document in the database. To ensure the document has not changed since we read it, we can use the update if current pattern described in the mongo docs
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Finding all possible combinations of numbers to reach a given sum
...o allow getting the number of solution (length of the list of lists), the "best" solution (the shortest list), or all the possible solutions.
Here is an example. It is very inefficient, but it is easy to understand.
object Sum extends App {
def sumCombinations(total: Int, numbers: List[Int]):...
Can you explain the concept of streams?
...s because I don't know anything about that, but in cartoon factories where items move along lines and get stamped and boxed and counted and checked by a sequence of dumb devices.
You have simple components that do one thing, for example a device to put a cherry on a cake. This device has an input s...
How to handle button clicks using the XML onClick within Fragments
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ButterKnife is probably the best solution for the clutter problem. It uses annotation processors to generate the so called "old method" boilerplate code.
But the onClick method can still be used, with a custom inflator.
How to use
@Override
public Vi...
How do I apply a CSS class to Html.ActionLink in ASP.NET MVC?
...3 with Razor:
@Html.ActionLink("Delete", "DeleteList", "List", new { ID = item.ID, ListID = item.id }, new {@class= "delete"})
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Is it possible to use jQuery .on and hover?
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using document as the root element is not best practice, since its performance hungry. you are monitoring document, while with load() you most of the time manipulate just a part of the website (f.ex. #content). so its better to try to narrow it down to the element, t...
How do I initialize an empty array in C#?
...rays.
Use a List<string> instead - it will allow you to add as many items as you need and if you need to return an array, call ToArray() on the variable.
var listOfStrings = new List<string>();
// do stuff...
string[] arrayOfStrings = listOfStrings.ToArray();
If you must create an ...