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How do you count the number of occurrences of a certain substring in a SQL varchar?
I have a column that has values formatted like a,b,c,d. Is there a way to count the number of commas in that value in T-SQL?
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Hand Coded GUI Versus Qt Designer GUI [closed]
I'm spending these holidays learning to write Qt applications. I was reading about Qt Designer just a few hours ago, which made me wonder : what do people writing real world applications in Qt use to design their GUIs? In fact, how do people design GUIs in general?
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What are some better ways to avoid the do-while(0); hack in C++?
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27 Answers
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How to list variables declared in script in bash?
In my script in bash, there are lot of variables, and I have to make something to save them to file.
My question is how to list all variables declared in my script and get list like this:
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Do HTML WebSockets maintain an open connection for each client? Does this scale?
I am curious if anyone has any information about the scalability of HTML WebSockets. For everything I've read it appears that every client will maintain an open line of communication with the server. I'm just wondering how that scales and how many open WebSocket connections a server can handle. Mayb...
Setting dynamic scope variables in AngularJs - scope.
I have a string I have gotten from a routeParam or a directive attribute or whatever, and I want to create a variable on the scope based on this. So:
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How to efficiently compare two unordered lists (not sets) in Python?
a & b should be considered equal, because they have exactly the same elements, only in different order.
10 Answers
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How to wrap async function calls into a sync function in Node.js or Javascript?
Suppose you maintain a library that exposes a function getData . Your users call it to get actual data:
var output = getData();
Under the hood data is saved in a file so you implemented getData using Node.js built-in fs.readFileSync . It's obvious both getData and fs.readFileSync are sy...
Attach to a processes output for viewing
How would I 'attach' a console/terminal-view to an applications output so I can see what it may be saying?
7 Answers
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
I have a Pandas Dataframe as below:
12 Answers
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