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Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据 - 爬虫/数据库 - 清...
...的设置为 innodb_file_per_table = 1。参考 http://blog.chinaunix.net/uid-24111901-id-2627876.html1、找回表结构，如果表结构没有丢失直接到下一步
a、先创建一个数据库，这个数据库必须是没有表和任何操作的。
b、创建一个表结构，和要恢复...
SSH免密码登陆教程 - 环境配置 - 清泛IT社区，为创新赋能！
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2、ssh-keygen -t [rsa|dsa]，将会生成密钥文件和私钥文件 id_rsa,id_rsa.pub或id_dsa,id_dsa.pub
3、将 .pub 文件复制到B机器的 .ssh 目录， 并 cat id_dsa.pub >> ~/.ssh/authorized_keys
4、大功告成，从A机器登录B机器的目标账户，不再需要密码了s...
Determining whether jQuery has not found any element
I'm using jQuery's selectors, especially id selector:
4 Answers
4
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Differences in auto-unboxing between Java 6 vs Java 7
...s fixed in 7, because it was critical for implementation of JSR 292 (Dynamically Typed Languages).
Java autoboxing has now some more traps and surprises. For example
Object obj = new Integer(1234);
long x = (long)obj;
will compile, but fail (with ClassCastException) at runtime. This, instead, wi...
Disable password authentication for SSH [closed]
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Many guides suggest changing ChallengeResponseAuthentication, PasswordAuthentication, UsePAM from yes to no on server. Successfully tested under Debian/Ubuntu.
– anon
Apr 13 '18 at 10:29
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Best way to define error codes/strings in Java?
... description;
}
public int getCode() {
return code;
}
@Override
public String toString() {
return code + ": " + description;
}
}
You may want to override toString() to just return the description instead - not sure. Anyway, the main point is that you don't need to override se...
android fragment onRestoreInstanceState
...reated. You can save the state during the fragment's onSaveInstanceState() callback and restore it during either onCreate(), onCreateView(), or onActivityCreated()
So, you can use that suits you best: onCreate(), onCreateView(), or onActivityCreated()
...
How to enable zoom controls and pinch zoom in a WebView?
...-screen zoom tool, but retain the pinch-to-zoom functionality, you need to call webView.setDisplayZoomControls(false) as well.
– Lev
Nov 6 '14 at 9:38
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AngularJS - How to use $routeParams in generating the templateUrl?
...ur application has 2-level navigating. We want to use AngularJS $routeProvider to dynamically provide templates to an <ng-view /> . I was thinking of doing something along the lines of this:
...
Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
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You would mostly be using COUNT to summarize over a UID. Therefore
COUNT([uid]) will produce the warning:
Warning: Null value is eliminated by an aggregate or other SET operation.
whilst being used with a left join, where the counted object does not exist.
Using COUNT(...