大约有 42,000 项符合查询结果（耗时：0.0548秒） [XML]
Format LocalDateTime with Timezone in Java8
... With what prefix would you have replaced the prefix "Local" to avoid confusion?
– Matthew
Mar 6 '16 at 19:06
...
What does git push -u mean?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
jQuery Popup Bubble/Tooltip [closed]
... I looked at Qtip today and while it does work there are some down sides: hasn't been updated in a while, is missing or has not documented some obvious things (want to build tool tip text with a function that is called when the tip is displayed) and is a hefty download (partly because it appe...
Can anybody push to my project on github?
...rote a readme.txt and push it to the remote repo, where such a readme.txt did not exist, after push and refresh the page, it appears).
...
“Debug certificate expired” error in Eclipse Android plugins
I am using Eclipse Android plugins to build a project, but I am
getting this error in the console window:
17 Answers
...
Create array of symbols
...what bizarro syntax Ruby has thrown at us this time. I highly recommend avoiding obscure language features when perfectly readable alternatives exist, i.e. [:address, :city, :state].
– Alex
Aug 9 '16 at 5:48
...
What does -XX:MaxPermSize do?
... many classes (this is typically the case for application servers and some IDE like Eclipse) :
The permanent generation does not have a noticeable impact on garbage
collector performance for most applications. However, some
applications dynamically generate and load many classes; for example...
How to use NULL or empty string in SQL
...
If you need it in SELECT section can use like this.
SELECT ct.ID,
ISNULL(NULLIF(ct.LaunchDate, ''), null) [LaunchDate]
FROM [dbo].[CustomerTable] ct
you can replace the null with your substitution value.
...
How add “or” in switch statements?
... statements_switch.cs
using System;
class SwitchTest
{
public static void Main()
{
Console.WriteLine("Coffee sizes: 1=Small 2=Medium 3=Large");
Console.Write("Please enter your selection: ");
string s = Console.ReadLine();
int n = int.Parse(s);
int cost = 0;...
What is a “Bitmap heap scan” in a query plan?
... (hence the so-called recheck cond you see in query plans).
Note, as an aside, how clustering/row order affects the associated costs with either method. If rows are all over the place in a random order, a bitmap index will be cheaper. (And, in fact, if they're really all over the place, a seq scan ...