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SQL join: selecting the last records in a one-to-many relationship
...n StackOverflow.
Here's how I usually recommend solving it:
SELECT c.*, p1.*
FROM customer c
JOIN purchase p1 ON (c.id = p1.customer_id)
LEFT OUTER JOIN purchase p2 ON (c.id = p2.customer_id AND
(p1.date < p2.date OR (p1.date = p2.date AND p1.id < p2.id)))
WHERE p2.id IS NULL;
Explana...
Asserting successive calls to a mock method
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188
assert_has_calls is another approach to this problem.
From the docs:
assert_has_calls (ca...
How to reduce iOS AVPlayer start delay
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For iOS 10.x and greater to reduce AVPlayer start delay I set:
avplayer.automaticallyWaitsToMinimizeStalling = false;
and that seemed to fix it for me. This could have other consequences, but I haven't hit those yet.
I got the ide...
SCOPE_IDENTITY() for GUIDs?
...SERT INTO dbo.GuidPk (
Col2
)
OUTPUT inserted.ColGuid
INTO @op
VALUES (1)
SELECT * FROM @op
SELECT * FROM dbo.GuidPk
Reference: Exploring SQL 2005’s OUTPUT Clause
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...k for iOS 5.
http://www.raywenderlich.com/5677/beginning-arc-in-ios-5-part-1
Weak
weak is similar to strong except that it won't increase the reference count by 1. It does not become an owner of that object but just holds a reference to it. If the object's reference count drops to 0, even though you...
Set value to null in WPF binding
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I am using .NET 3.5 SP1 so it's very simple:
<TextBox Text="{Binding Price, TargetNullValue=''}"/>
Which stands for (thanks Gregor for your comment):
<TextBox Text="{Binding Price, TargetNullValue={x:Static sys:String.Empty}}"/>
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How persistent is localStorage?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Mar 30 '12 at 19:33
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Cancellation token in Task constructor: why?
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edited Feb 18 at 9:44
Eliahu Aaron
3,15122 gold badges2020 silver badges3232 bronze badges
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Cherry pick using TortoiseGit
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156
Open the log in a repository with the target branch checked out.
Use the top-left blue branch...