大约有 36,010 项符合查询结果(耗时:0.0500秒) [XML]
How to obtain the last path segment of a URI
...t instead, there's a method there called getLastPathSegment() which should do the same thing. :)
– pm_labs
Mar 4 '13 at 4:19
5
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Split large string in n-size chunks in JavaScript
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You can do something like this:
"1234567890".match(/.{1,2}/g);
// Results in:
["12", "34", "56", "78", "90"]
The method will still work with strings whose size is not an exact multiple of the chunk-size:
"123456789".match(/.{1,2}...
What is Normalisation (or Normalization)?
Why do database guys go on about normalisation?
10 Answers
10
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How can I get the count of milliseconds since midnight for the current?
Note, I do NOT want millis from epoch. I want the number of milliseconds currently on the clock.
11 Answers
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Why do some functions have underscores “__” before and after the function name?
...le_leading_underscore: weak "internal use" indicator. E.g. from M import * does not import objects whose name starts with an underscore.
single_trailing_underscore_: used by convention to avoid conflicts with Python keyword, e.g.
Tkinter.Toplevel(master, class_='ClassName')
__double_leading...
Does order of where clauses matter in SQL?
...
No, that order doesn't matter (or at least: shouldn't matter).
Any decent query optimizer will look at all the parts of the WHERE clause and figure out the most efficient way to satisfy that query.
I know the SQL Server query optimizer wi...
Attach to a processes output for viewing
... answered Apr 3 '09 at 21:20
Don WerveDon Werve
4,98222 gold badges2323 silver badges3131 bronze badges
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ORDER BY the IN value list
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You can do it quite easily with (introduced in PostgreSQL 8.2) VALUES (), ().
Syntax will be like this:
select c.*
from comments c
join (
values
(1,1),
(3,2),
(2,3),
(4,4)
) as x (id, ordering) on c.id = x.id
orde...
Why do I get “'property cannot be assigned” when sending an SMTP email?
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mail.To and mail.From are readonly. Move them to the constructor.
using System.Net.Mail;
...
MailMessage mail = new MailMessage("you@yourcompany.com", "user@hotmail.com");
SmtpClient client = new SmtpClient();
client.Port = 25;
client.DeliveryMethod ...
Difference between a theta join, equijoin and natural join
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@outis, What does "theta" in "theta join" mean?
– Pacerier
Apr 18 '15 at 6:35
2
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