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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...$database; OPEN_MODE -------------------- READ WRITE 查看数据库字符集 SQL> select userenv('language') from dual; SQL> select * from props$ where name='NLS_CHARACTERSET'; SQL> select * from nls_database_parameters; 启动数据库企业管理器 oracle 用户 emctl start dbconso...
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快速开发CSS的利器LESS 系列教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...而且不需要进行额外的处理(即不需要去掉px或者转换为字符串等),直接使用最基本的CSS样式书写和运算即可。 3、也存在所谓的“变量作用域”,其基本原理等同于JS的作用域,由自身开始,不断向其父级进行变量的查找,...
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App Inventor 2 扩展 · App Inventor 2 中文网

...screen. You can still create components that use anything in the Android SDK and produce visible results in the app on the phone; they just won’t appear in the designer screen. The property editors (i.e., the things that determine how users specify property values in the designer), must be ones...
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How to programmatically create and read WEP/EAP WiFi configurations in Android?

...ion from various sources on the internet and long back, at that time a new SDK was released and not much information was available about these.I do not know the current Android situation as I do not currently work with Android.Also, I hold no copyright over this code and I do not have any problems i...
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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术

...rintf("Usage: %s IPAddress PortNumber/n",argv[0]); exit(-1); } //把字符串的IP地址转化为u_long unsigned long ip; if((ip=inet_addr(argv[1]))==INADDR_NONE){ printf("不合法的IP地址:%s",argv[1]); exit(-1); } //把端口号转化成整数 short port; if((port = a...
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...

...在其后的每个行前多置一个空格即可;postfix会把第一个字符为空格或tab的文本行视为上一行的延续; 5、启动postfix,连接发信 四、为postfix开启基于cyrus-sasl认证功能 1、检查postfix是否支持cyrus-sasl认证 postconf -a 2、配置...
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动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...。然后,我给 GDB 官方提了两个 C 补丁,一是针对 Python 字符串操作,一是针对 GDB 的错误处理方式。它们使得我们最复杂的 GDB Python 工具的整体运行速度提高了 100%。GDB 官方目前已经合并了其中一个补丁。使用动态追踪技术来分...
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Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...068,转化为十进制就是104,而它需要的参数第一个是一个字符串,其它的都是可选的,因此,我们可以这样调用它的方法: Variant url = new Variant("http://www.blogjava.net/"); automation.invoke(104, new Variant[]{url}); 下面,贴出本文例子中的...