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How to use GROUP_CONCAT in a CONCAT in MySQL
If I have a table with the following data in MySQL:
7 Answers
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Pointers vs. values in parameters and return values
... channels, strings, function values, and interface values are implemented with pointers internally, and a pointer to them is often redundant.
Elsewhere, use pointers for big structs or structs you'll have to change, and otherwise pass values, because getting things changed by surprise via a pointer ...
How to import an excel file in to a MySQL database
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Export it into some text format. The easiest will probably be a tab-delimited version, but CSV can work as well.
Use the load data capability. See http://dev.mysql.com/doc/refman/5.1/en/load-data.html
Look half way down the page, as...
How do I auto-reload a Chrome extension I'm developing?
...ome extension to reload every time I save a file in the extension folder, without having to explicitly click "reload" in chrome://extensions/. Is this possible?
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Where to place AutoMapper.CreateMaps?
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Doesn't matter, as long as it's a static class. It's all about convention.
Our convention is that each "layer" (web, services, data) has a single file called AutoMapperXConfiguration.cs, with a single method called Configure(), where X is the layer.
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Why does changing the sum order returns a different result?
...t why does simply changing the order of the elements affects the result?
It will change the points at which the values are rounded, based on their magnitude. As an example of the kind of thing that we're seeing, let's pretend that instead of binary floating point, we were using a decimal floating ...
How to append data to div using JavaScript?
...here I fill the div from JavaScript, how can I append new data to the div without losing the previous data found in div?
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Chrome Development Tool: [VM] file from javascript
... (jaydata.js) and was pressing "Step over to the next function call."
When it got to a line that was:
9 Answers
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LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method ca
...he string to a temp variable and then use that in your expression:
var strItem = item.Key.ToString();
IQueryable<entity> pages = from p in context.pages
where p.Serial == strItem
select p;
The problem arises because ToString() isn't re...
Get data from fs.readFile
...t @Raynos said, the function you have defined is an asynchronous callback. It doesn't execute right away, rather it executes when the file loading has completed. When you call readFile, control is returned immediately and the next line of code is executed. So when you call console.log, your callback...