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Database, Table and Column Naming Conventions? [closed]
...r I design a database, I always wonder if there is a best way of naming an item in my database. Quite often I ask myself the following questions:
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get UTC time in PHP
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@sanmai: a Unix timestamp is by definition always UTC. en.wikipedia.org/wiki/Unix_time
– nikc.org
Jul 20 '15 at 8:20
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INSERT INTO…SELECT for all MySQL columns
...already have some data in both tables then in some cases you may want to omit the id from the column list and generate new ids instead to avoid insert an id that already exists in the original table. If your target table is empty then this won't be an issue.
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How do you find the current user in a Windows environment?
When running a command-line script, is it possible to get the name of the current user?
13 Answers
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converting a base 64 string to an image and saving it
...the method to accept a string parameter. Then just save the image object with image.Save(...).
public Image LoadImage()
{
//data:image/gif;base64,
//this image is a single pixel (black)
byte[] bytes = Convert.FromBase64String("R0lGODlhAQABAIAAAAAAAAAAACH5BAAAAAAALAAAAAABAAEAAAICTAEAOw=...
Remove the legend on a matplotlib figure
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or
legend = ax.legend(...)
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legend.remove()
See here for the commit where this was introduced.
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How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
How can I tell if the JVM in which my application runs is 32 bit or 64-bit? Specifically, what functions or properties I can used to detect this within the program?
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Writing handler for UIAlertAction
I'm presenting a UIAlertView to the user and I can't figure out how to write the handler. This is my attempt:
9 Answers
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Unexpected character encountered while parsing value
Currently I have some issues. I'm using C# with Json.NET. The issue is that I always get:
15 Answers
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Two-way encryption: I need to store passwords that can be retrieved
...trong class that takes care of everything for you:
What is the safest algorithm to encrypt the passwords with?
safest? any of them. The safest method if you're going to encrypt is to protect against information disclosure vulnerabilities (XSS, remote inclusion, etc). If it gets out, the attacker...