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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...shion. The "best" way to break is by compilation error. For example if you SELECT * somewhere, the addition of a column could fail to compile. The next best way to fail would be a run time error. It's worse because your users may see it, but it still gives you a nice warning that you've broken somet...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...EASY_OK,则signal信号量，从而工作线程被唤醒。
典型的，select请求这种需要回复多个包给MySQL客户端的场景使用的都是这种模式
其它诸如只需要回复一个包给MySQL客户端的DML操作，例如INSERT,UPDATE等也使用这种模式，只是工作线程...
How and why do I set up a C# build machine? [closed]
... free and extremely easy to configure and will easily run on a VM.
Partly from an old post of mine:
We use it to
Deploy Windows services
Deploy web services
Run MSTests & display as much information as any junit tests
Keep track of low,med,high tasks
trendgraph warnings and errors
Here are...
What's the best way to put a c-struct in an NSArray?
...e don't need a pointer to the values to be stored within. This is distinct from the immutable array wherein the contents are "frozen" at creation and hence values must be passed to the initialisation routine.
– Sedate Alien
Dec 30 '10 at 1:11
...
Use numpy array in shared memory for multiprocessing
...rray
with shared_arr.get_lock(): # synchronize access
arr = np.frombuffer(shared_arr.get_obj()) # no data copying
arr[i] = -arr[i]
Example
import ctypes
import logging
import multiprocessing as mp
from contextlib import closing
import numpy as np
info = mp.get_logger().info...
How can I get all constants of a type by reflection?
...mp;& !fi.IsInitOnly && fi.FieldType == typeof(T))
.Select(x => (T)x.GetRawConstantValue())
.ToList();
}
}
Then for a class like this
static class MyFruitKeys
{
public const string Apple = "apple";
public const string Plum = "plum";
public con...
Setting the filter to an OpenFileDialog to allow the typical image formats?
...
Complete solution in C# is here:
private void btnSelectImage_Click(object sender, RoutedEventArgs e)
{
// Configure open file dialog box
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.Filter = "";
ImageCodecInfo[] codecs = I...
Is there a way to delete a line in Visual Studio without cutting it?
I want to delete a line just like hitting Ctrl + X without anything selected, but without saving the line to the copy stack. Is this possible?
...
How can I use getSystemService in a non-activity class (LocationManager)?
I'm having trouble offloading tasks from the main Activities OnCreate method onto another class to do the heavy lifting.
5 ...
Adjusting the Xcode iPhone simulator scale and size [duplicate]
...teps :
Goto Window->Uncheck Show Device Bezels
Goto Window->select zoom
after doing this you can resize your simulator by dragging edges of simulator.
Pixel Accurate : Its to display your simulator in same size as Physical device pixels, if your screen size doesn't have enough re...