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What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?
...e a SQL_Latin1_General_CI_AS. Rather, there is a Latin1_General_CI_AS. See SELECT * FROM fn_helpcollations() where name IN ('SQL_Latin1_General_CP1_CI_AS','Latin1_General_CI_AS','SQL_Latin1_General_CI_AS');. There are subtle differences regarding sorting and comparison as between the two collations....
How do I list all files of a directory?
...'work.txt', '3ebooks.txt', 'documents']
glob
I found glob easier to select the file of the same type or with something in common. Look at the following example:
import glob
txtfiles = []
for file in glob.glob("*.txt"):
txtfiles.append(file)
glob with list comprehension
import glo...
How can we run a test method with multiple parameters in MSTest?
... object>>()
.Where(_ => _.Key.StartsWith("par"))
.Select(_ => _.Value as string)
.ToList();
}
//usage
[TestMethod]
[TestProperty("par1", "http://getbootstrap.com/components/")]
[TestProperty("par2", "http://www.wsj.com/europe")]
public void SomeTest()
{
var p...
B-Tree vs Hash Table
...faster than with a tree algorithm (O(1) instead of log(n)), but you cannot select ranges (everything in between x and y).
Tree algorithms support this in Log(n) whereas hash indexes can result in a full table scan O(n).
Also the constant overhead of hash indexes is usually bigger (which is no factor...
What is the most robust way to force a UIView to redraw?
I have a UITableView with a list of items. Selecting an item pushes a viewController that then proceeds to do the following. from method viewDidLoad I fire off a URLRequest for data that is required by on of my subviews - a UIView subclass with drawRect overridden. When the data arrives from the clo...
LEGO EV3 机器人传感器面板 · App Inventor 2 中文网
...ListPicker1.AfterPicking 时
调用 BluetoothClient1.Connect(ListPicker1.Selection)
如果 BluetoothClient1.IsConnected 那么
设置 Clock1.TimerEnabled 为 true
设置 Screen1.Title 为 "Connected"
步骤2：传感器轮询
Clock.Timer 事件每 200ms 触发...
Lowercase and Uppercase with jQuery
...Case();
Possible duplicate with:
How do I use jQuery to ignore case when selecting
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What is scope/named_scope in rails?
...Zombie.rotting.fresh.recent.limit(3)
It translates to the below in SQL,
select "zombies.*" from "zombies" where "zombies"."rotting" = 't' and (age<20) order by create_at desc limit 3
Example above is based on rails 4 syntax
...
How do I plot in real-time in a while loop using matplotlib?
...n. To make it work as a standalone script, it's necessary to 1) explicitly select a backend for matplotlib, and 2) to force the figure to be displayed and drawn before entering the animation loop using plt.show() and plt.draw(). I've added these changes to the code above.
– ali...
What does “dereferencing” a pointer mean?
...he pointer may be relative to some specific memory area, which the CPU may select based on CPU "segment" registers or some manner of segment id encoded in the bit-pattern, and/or looking in different places depending on the machine code instructions using the address.
For example, an int* properly ...