大约有 170 项符合查询结果（耗时：0.0213秒） [XML]
MySQL error: key specification without a key length
...ng portion of a TEXT column you want to index.
InnoDB has a limitation of 768 bytes per index key and you won't be able to create an index longer than that.
This will work fine:
CREATE TABLE t_length (
mydata TEXT NOT NULL,
KEY ix_length_mydata (mydata(255)))
ENGINE=InnoDB;
Note...
Does my application “contain encryption”?
... exceeding 64 bits symmetric, or if no symmetric algorithms, not exceeding 768 bits asymmetric and/or 128 bits elliptic curve.
Please review Note 3 in Category 5 Part 2 to understand the criteria for mass market definition.
(v) your app is specially designed and limited for banking use or ‘money...
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
...lution_iPadStandard = 4, // iPad 1,2,mini Standard Display (1024x768px)
UIDeviceResolution_iPadRetina = 5 // iPad 3 Retina Display (2048x1536px)
}; typedef NSUInteger UIDeviceResolution;
@interface UIDevice (Resolutions)
- (UIDeviceResolution)resolution;
NSStri...
How to merge a specific commit in Git
...
768
You can use git cherry-pick to apply a single commit by itself to your current branch.
Exampl...
Change MySQL default character set to UTF-8 in my.cnf?
...column size from 255 to 191 (because 191 * 4 = 764 < 767 < 192 * 4 = 768). After that, the table can be converted.
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How to vertically center a container in Bootstrap?
... or 0 or change its display type to none if needed so:
@media (max-width: 768px) {
.vertical-center:before {
height: auto;
/* Or */
display: none;
}
}
UPDATED DEMO
And one more thing:
If there are footer/header sections around the container, it's better to position that elements...
What is the maximum possible length of a query string?
...ot remember but one of them (IE6, I think) had a limit of 16-bit limit, 32,768 or something.
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Detect iPad Mini in HTML5
... to be different for iPad Mini and iPad 2.
iPad Mini
screen.availWidth = 768
screen.availHeight = 1004
iPad 2
screen.availWidth = 748
screen.availHeight = 1024
Source: http://konstruktors.com/blog/web-design/4396-detect-ipad-mini-javascript/
...
Can I change the viewport meta tag in mobile safari on the fly?
...meta id="viewport"
name="viewport"
content="width=1024, height=768, initial-scale=0, minimum-scale=0.25" />
somewhere in your javascript
document.getElementById("viewport").setAttribute("content",
"initial-scale=0.5; maximum-scale=1.0; user-scalable=0;");
... but good luck ...
What are Makefile.am and Makefile.in?
...ile.in and Makefile are both only 493 lines of code. (But, there are also 768 more Makefile.in's in subfolders.)
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