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MySQL: What's the difference between float and double?
...th example
– Kailas
Apr 17 '14 at 9:11
4
@Kailas Floats get rounded and decimals do not. Decimal(...
Multiple columns index when using the declarative ORM extension of sqlalchemy
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answered Jul 8 '11 at 16:00
zzzeekzzzeek
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Using OR in SQLAlchemy
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answered Oct 30 '11 at 0:22
Bastien LéonardBastien Léonard
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How to get names of classes inside a jar file?
I have a JAR file and I need to get the name of all classes inside this JAR file. How can I do that?
12 Answers
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URL Encoding using C#
...file name) may be constructed using Uri.EscapeDataString(fileOrFolderName) allowing all non Uri compatible character (spaces, unicode ...). For example to allow any character in filename, use: req =(FtpWebRequest)WebRequest.Create(new Uri(path + "/" + Uri.EscapeDataString(filename))); Using...
Ideal Ruby project structure
...pname folder because most libraries are in the appname namespace.
Additionally, if you try running the command newgem --simple [projectname] that'll quickly generate a scaffold for you with just the bare essentials for a Ruby project (and by extension a Ruby Gem). There are other tools which do thi...
Gradle store on local file system
... caches artifacts in USER_HOME/.gradle folder. The compiled scripts are usually in the .gradle folder in your project folder.
If you can't find the cache, maybe it's because you have not cached any artifacts yet. You can always see where Gradle has cached artifacts with a simple script:
apply plug...
How to 'bulk update' with Django?
...ings like incrementing rows:
from django.db.models import F
Entry.objects.all().update(n_pingbacks=F('n_pingbacks') + 1)
See the documentation.
However, note that:
This won't use ModelClass.save method (so if you have some logic inside it won't be triggered).
No django signals will be emitte...
Where are Docker images stored on the host machine?
...river Docker is using for storage.
By default this will be aufs but can fall back to overlay, overlay2, btrfs, devicemapper or zfs depending on your kernel support. In most places this will be aufs but the RedHats went with devicemapper.
You can manually set the storage driver with the -s or --st...
Plotting time in Python with Matplotlib
...erstand why this is the 5th question I've encountered where no one has actually TRIED using a scatter plot - it doesn't work. Type Error - invalid type promotion.
– dwanderson
Oct 5 '16 at 16:21
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