大约有 25,000 项符合查询结果（耗时：0.0542秒） [XML]
Is there a REAL performance difference between INT and VARCHAR primary keys?
... during the test.
148.6 GB SSD drive, with plenty of free space.
Ubuntu 16.04 64-bit
MySQL Ver 14.14 Distrib 5.7.20, for Linux (x86_64)
The tables:
create table jan_int (data1 varchar(255), data2 int(10), myindex tinyint(4)) ENGINE=InnoDB;
create table jan_int_index (data1 varchar(255), data2 int...
Sublime Text 2: Trim trailing white space on demand
...
I found a soulution here:
http://www.sublimetext.com/forum/viewtopic.php?f=4&t=4958
You can modify the package
trim_trailing_white_space.py
located in the default packages directory, this way:
import sublime, sublime_plugin
def trim_trailing_white...
How to automatically generate N “distinct” colors?
...randf()
– Killrawr
Mar 29 '16 at 22:04
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Knight's Shortest Path on Chessboard
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Jamie Counsell
6,04344 gold badges3333 silver badges7474 bronze badges
answered Feb 26 '10 at 2:30
TiansHUoTiansHUo
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Apply CSS styles to an element depending on its child elements
...e hell not". A well fleshed out one by Shaun Inman is pretty good:
http://www.shauninman.com/archive/2008/05/05/css_qualified_selectors
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Request is not available in this context
... More discussion of this situation here: stackoverflow.com/questions/1790457/…
– jball
Mar 25 '10 at 17:55
6
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PHP: exceptions vs errors?
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– Robert Sinclair
Aug 29 '17 at 18:04
1
I think what the OP meant was more about the difference ...
When to use MongoDB or other document oriented database systems? [closed]
...g article.
– aurora
Oct 2 '09 at 15:04
53
nosql.mypopescu.com/post/1016320617/mongodb-is-web-scal...
What does value & 0xff do in Java?
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From http://www.coderanch.com/t/236675/java-programmer-SCJP/certification/xff
The hex literal 0xFF is an equal int(255). Java represents int as 32 bits. It look like this in binary:
00000000 00000000 00000000 11111111
When you do a b...
Build a Basic Python Iterator
...ive in nature.
– Ian
Jul 5 '13 at 1:04
2
@metaperl: Actually, it is. In all four of the above ca...