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Postgresql query between date ranges
...gs
WHERE
login_date >= '2014-02-01'
AND login_date < '2014-03-01'
In this case you still need to calculate the start date of the month you need, but that should be straight forward in any number of ways.
The end date is also simplified; just add exactly one month. No messing about...
R script line numbers at error?
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edited May 23 '17 at 11:47
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111 silver badge
answered Sep 18 '09 at 18:04
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How does Apple know you are using private API?
...
There are 3 ways I know. These are just some speculation, since I do not work in the Apple review team.
1. otool -L
This will list all libraries the app has linked to. Something clearly you should not use, like IOKit and WebKit can b...
How to include *.so library in Android Studio?
...ourlib.so
├── armeabi-v7a/ <-- ARM 32bit
│ └── yourlib.so
└── x86/ <-- Intel 32bit
└── yourlib.so
Deprecated solution
Add both code snippets in your module gradle.buil...
How to pass a parcelable object that contains a list of objects?
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103
If class Product is compatible with parcelable protocol, following should work according to docu...
git mv and only change case of directory
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edited May 23 '17 at 11:55
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answered Jun 10 '10 at 4:52
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What happened to “Always refresh from server” in IE11 developer tools?
...s with Windows 8.1
It is found in the Network tab of the developer tools, 3rd button from the left.
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Is it possible to Pivot data using LINQ?
...).Sum(c => c.Qty),
March = g.Where(c => c.OrderDate.Month == 3).Sum(c => c.Qty)
});
GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape)...
How can I get the full/absolute URL (with domain) in Django?
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530
Use handy request.build_absolute_uri() method on request, pass it the relative url and it'll gi...
ASP.NET MVC Conditional validation
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There's a much better way to add conditional validation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method:
public class Person : IValidatableObject
{
public string Name { get; set; }
public bool IsSenior { get; set; }
public Senior Senior...