大约有 19,000 项符合查询结果(耗时:0.0219秒) [XML]

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Are nested transactions allowed in MySQL?

...noDB supports SAVEPOINTS. You can do the following: CREATE TABLE t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB; START TRANSACTION; INSERT INTO t_test VALUES (1); SELECT * FROM t_test; id --- 1 SAVEPOINT tran2; INSERT INTO t_test VALUES (2); SELECT * FROM t_test; id...
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Adding attribute in jQuery

... You can add attributes using attr like so: $('#someid').attr('name', 'value'); However, for DOM properties like checked, disabled and readonly, the proper way to do this (as of JQuery 1.6) is to use prop. $('#someid').prop('disabled', true); ...
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Disable password authentication for SSH [closed]

... 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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c++ Timer使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...均提供实例参考。窗口应用程序使用Timer: #define TIMER_ID 1000 //定时器ID,可任意。触发后回调函数中用于区别不同的定时器以执行不同的任务 SetTimer(TIMER_ID, 1000 , NULL); //启动定时器,1秒后触发 KillTimer(TIMER_ID); //取消定时器 ...
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passing xxx as \'this\' argument of xxx discards qualifiers - C/C++ - 清泛网 - 专注C/C++及内核技术

...lude <set> using namespace std; class StudentT { public: int id; string name; public: StudentT(int _id, string _name) : id(_id), name(_name) { } int getId() { // 应该声明为const成员 return id; } string getName() { // 应该声明为con...
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解决:ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...

...出所有被锁的对象,定位出哪个回话占用 select l.session_id,o.owner,o.object_name from v$locked_object l,dba_objects o where l.object_id=o.object_id 结果: session_id owner object_name 158 SA TEST_1 ... 对比想要创建的索引,定位哪些会话需要被删除 2:...
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SSH免密码登陆教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 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 ssh-k...
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Phpcms v9 实现首页|列表页|内容页点击量调用的代码 - 更多技术 - 清泛网 -...

...容页的点击量获取比较简单,一般默认模板中自带:<span id="hits">< span>...<script language="JavaScript" src="{APP_PATH}api.p...1、内容页的点击量获取比较简单,一般默认模板中自带: <span id="hits"></span> ... <script language="JavaScript" src="{APP_...
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js + css 实现Div弹出效果 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...splay: none; position: absolute; top: 20%; left: 22%; width: 55%; height: 60%; padding: 20px; border: 1px solid #004F8C; background-color: white; z-index:1002; overflow: auto; } </style> <a href="javascript:void(0)" onclick="showDiv('conte...
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为iFrame添加动态载入效果,提高用户体验 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...加载中:完成后:以下是完整代码:<div style="float: left;width: 205px;font-size: 13px !important;line-hei iFrame动态载入效果,现在记录一下,顺便分享。 先展示下效果: 加载中: 完成后: 以下是完整代码: <div style="float: left;width...