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Is there any difference between GROUP BY and DISTINCT
I learned something simple about SQL the other day:
26 Answers
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How to merge 2 List and removing duplicate values from it in C#
I have two lists List that I need to combine in third list and remove duplicate values from that lists
5 Answers
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Function to return only alpha-numeric characters from string?
I'm looking for a php function that will take an input string and return a sanitized version of it by stripping away all special characters leaving only alpha-numeric.
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Best way to hide a window from the Alt-Tab program switcher?
I've been a .NET developer for several years now and this is still one of those things I don't know how to do properly. It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hid...
Extracting bits with a single multiplication
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Very interesting question, and clever trick.
Let's look at a simple example of getting a single byte manipulated. Using unsigned 8 bit for simplicity. Imagine your number is xxaxxbxx and you want ab000000.
The solution consisted of two steps: a bit masking, followed by multiplication. Th...
Why can't I use switch statement on a String?
Is this functionality going to be put into a later Java version?
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16
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Convert HTML + CSS to PDF [closed]
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Important:
Please note that this answer was written in 2009 and it might not be the most cost-effective solution today in 2019. Online alternatives are better today at this than they were back then.
Here are some online servic...
How to get highcharts dates in the x axis?
...s on the x-axis for Highcharts? Can't find it in their documentation: http://www.highcharts.com/ref/#xAxis--type
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Navigation in django
I've just done my first little webapp in django and I love it. I'm about to start on converting an old production PHP site into django and as part its template, there is a navigation bar.
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SQL query for finding records where count > 1
I have a table named PAYMENT . Within this table I have a user ID, an account number, a ZIP code and a date. I would like to find all records for all users that have more than one payment per day with the same account number.
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