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SQL update fields of one table from fields of another one
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@YasirAzgar the b.id = 1 is to limit what rows in b get updated. Otherwise we would update every row in the table. Occasionally, that might be what you want. But the original question was to update a specific row in b.
– Scott Bailey
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What package naming convention do you use for personal/hobby projects in Java?
...ood and useful and large, and then you realize you have a solid start for what may be a long-lived library or application. It may not be a library or an application that ever leaves your home network, but the point is, you've not thought ahead. That's the Denmark ghost of computer science -- alwa...
How to write a cron that will run a script every day at midnight?
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Here's a good tutorial on what crontab is and how to use it on Ubuntu. Your crontab line will look something like this:
00 00 * * * ruby path/to/your/script.rb
(00 00 indicates midnight--0 minutes and 0 hours--and the *s mean every day of every mon...
How do I detect whether a Python variable is a function?
...iner. Don't use types.FunctionType unless you have a very specific idea of what a function is.
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How to view method information in Android Studio?
...over your mouse over a method, a window would appear with a description of what the method does, what the parameters mean and what it returns. Is there a way to get Android Studio to do the same thing?
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
...t much encouragement needed), I've been wrong before :-)
Supposition, for what it's worth, follows.
I suspect that the reason the original pre-ANSI C didn't have this feature is because it was totally unnecessary. First, there was already a perfectly good way of doing integer powers (with doubles ...
How do I view 'git diff' output with my preferred diff tool/ viewer?
...I prefer, is to configure the external diff tool via "git
config". Here is what I did:
1) Create a wrapper script "git-diff-wrapper.sh" which contains something like
-->8-(snip)--
#!/bin/sh
# diff is called by git with 7 parameters:
# path old-file old-hex old-mode new-file new-hex new-mode
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What to do with “Unexpected indent” in python?
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Turn on visible whitespace in whatever editor you are using and turn on replace tabs with spaces.
While you can use tabs with Python mixing tabs and space usually leads to the error you are experiencing. Replacing tabs with 4 spaces is the recommended ap...
Reloading submodules in IPython
...ghtly different than dreload. Some caveats apply, type %autoreload? to see what can go wrong.
If you want to always enable this settings, modify your IPython configuration file ~/.ipython/profile_default/ipython_config.py[1] and appending:
c.InteractiveShellApp.extensions = ['autoreload']
c...
Stop node.js program from command line
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@Eleeist, What are you using as a terminal? It works great for me.
– Brad
May 9 '12 at 19:22
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