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What is data oriented design?
...che slot takes, say, 64 bytes as well. If I want to update the position of 10 balls, I have to pull in 10*64 = 640 bytes of memory into cache and get 10 cache misses. If however I can work the positions of the balls as separate units, that will only take 4*10 = 40 bytes. That fits in one cache fetch...
MySQL, update multiple tables with one query
...ase, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books table.
UPDATE Books, Orders
SET Orders.Quantity = Orders.Quantity + 2,
Books.InStock = Boo...
What makes a SQL statement sargable?
...tion for every row of the table. Much better to use:
WHERE myDate >= '01-01-2008' AND myDate < '01-01-2009'
Some other examples:
Bad: Select ... WHERE isNull(FullName,'Ed Jones') = 'Ed Jones'
Fixed: Select ... WHERE ((FullName = 'Ed Jones') OR (FullName IS NULL))
Bad: Select ... WHERE SUB...
How to use ScrollView in Android?
... android:layout_height="match_parent"
android:stretchColumns="1">
<!-- everything you already have -->
</TableLayout>
</ScrollView>
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How do you concatenate Lists in C#?
...ncat returns a new sequence without modifying the original list. Try myList1.AddRange(myList2).
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Using isKindOfClass with Swift
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answered Jun 14 '14 at 13:29
KPMKPM
10k33 gold badges4141 silver badges6363 bronze badges
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What is the syntax for “not equal” in SQLite?
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201
From the official documentation:
The non-equals operator can be either != or <>
So y...
Android check internet connection [duplicate]
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edited Aug 23 '19 at 8:15
Samir Elekberov
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answered Mar ...
Adding placeholder text to textbox
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91
Wouldn't that just be something like this:
Textbox myTxtbx = new Textbox();
myTxtbx.Text = "Ent...
Transitions with GStreamer Editing Services freezes, but works OK without transitions
...var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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