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Effect of NOLOCK hint in SELECT statements
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Thanks. This is what I've been assuming but was questioned about it by a colleague and my initial research made me question myself. SQLServer 2005 documentation says that with NOLOCK is the default locking scheme for all select statements! I'd guess then that my hints would be...
What does the star operator mean, in a function call?
...hat happens if you (accidentally perhaps :p) unpack a dictionary with only one * instead of two? It seems to do something, it seems like a tuple comes out, but it is not so obvious what it is. (edit: ok I think the answer is that it just unpacks the keys, the values are discarded)
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Make git automatically remove trailing whitespace before committing
... chmod -x pre-commit
Warning: by default, a pre-commit script (like this one), has not a "remove trailing" feature", but a "warning" feature like:
if (/\s$/) {
bad_line("trailing whitespace", $_);
}
You could however build a better pre-commit hook, especially when you consider that:
Com...
How to use Sphinx's autodoc to document a class's __init__(self) method?
...s docstring).
Recently I took the best implementation and made it part of one of my Python projects (here's the documentation). The implementation basically comes down to this:
import types
def setup(app):
"""Enable Sphinx customizations."""
enable_special_methods(app)
def enable_spec...
How can I create a table with borders in Android?
...posing each "cell" item but I haven't verified.
An example similar to the one on DroidNova:
<TableLayout android:background="#000000"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TableRow android:background="#FFFFFF"
android:layout_width="fill_parent"
an...
What is the proper declaration of main?
...ared as static or inline. It also cannot be overloaded; there can be only one function named main in the global namespace.
The main function cannot be used in your program: you are not allowed to call the main function from anywhere in your code, nor are you allowed to take its address.
The retur...
How to make an array of arrays in Java
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this one is more flexiable
– hetaoblog
May 19 '13 at 2:29
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How to check file MIME type with javascript before upload?
...n client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server resource.
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SQL - many-to-many table primary key
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My point is, insert will matter if its being done thousands of times per hour. You can't simply ignore it just because the ratio of insert to select is < 1. In this case, a customer cares about how much time it takes to place an order.
– user
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Explaining difference between automaticallyAdjustsScrollViewInsets, extendedLayoutIncludesOpaqueBars
...me time, you have more control over how it lays out its views, and that's done with those properties:
edgesForExtendedLayout
Basically, with this property you set which sides of your view can be extended to cover the whole screen. Imagine that you push a UIViewController into a UINavigationControl...