一.变量简介 变量存储的是一个单一的值,既可以是数字,也可以是字符或者日期.不能为数组. ODI的变量分为两种,全局变量和项目变量. 顾名思义,项目变量定义的变量只可以在本项目中使用,其它项目无法调用此变量.而全局变量定义的变量可被任何项目所引用. 变量可设置为一个单一的缺省值,或者由SQL赋值,在每次调用的时候刷新,生成最新的值. 二.变量的创建 先创建一个项目(ODI),打开后可看见"变量"标签. 在上面右键选择新建后,弹出窗口如下: 定义页中填入变量的名字,数值类型 ,保留历史记…

Tcl internal variables eryar@163.com 在Tcl中内置了一些变量,并赋予了一定的功能.内置变量列表如下: 变量名称 功能描述 argc 指命令行参数的个数. argv 指包含命令行参数的列表. argv0 是指被解释的文件或由调用脚本的名称的文件名. env 用于表示是环境变量数组元素. errorCode 为最后的Tcl错误的错误代码. errorInfo 为最后Tcl错误的堆栈跟踪信息. tcl_interactive 分别将其设置为1和0交互和非交互模式之…

控制台输出的时候显示一串这样的信息:[Project Name] was compiled with optimization - stepping may behave oddly; variables may not be available.如图所示:解决方法:1>2>…

30.5 Examples of MIB Variables Versions 1 and 2 of SNMP each collected variables together in a single large MIB, with the entire set documented in a single RFC. After publication of the second generation, MIB-II, the IETF took a different approach by…

错误:foreach statement cannot operate on variables of type 'System.Web.UI.WebControls.Table' because 'System.Web.UI.WebControls.Table' does not contain a public definition for 'GetEnumerator' foreach (TableRow tr in table) {   ... } 修改为 foreach (TableR…

今天安装ecshop的时候最上面出现了一个错误提示:Strict Standards: Only variables should be passed by reference in F:\www.xxxx.com\cls_template.php on line 418 解决办法: 打开cls_template.php文件中发现下面这段代码: $tag_sel = array_shift(explode(' ', $tag));忘记说了,我的PHP版本是5.4.19,PHP5.3以上默认只能传…

Problem 许多时候, 我们想要Table Variables在动态SQL中执行,但现实是很骨感的.比如这个示例: DECLARE @sql_command NVARCHAR(MAX); DECLARE @parameter_list NVARCHAR(MAX); ) ); SELECT @sql_command = ' SELECT DISTINCT FirstName FROM Person.Person WHERE LastName IN (SELECT last_name FROM…

PHP stands for "Hypertext Preprocessor" ,it is a server scripting language. What Can PHP Do? PHP can generate dynamic page content PHP can create, open, read, write, delete, and close files on the server PHP can collect form data PHP can send an…

ODI 12.2.1.1现在已经发布,也可以OTN上下载,主要变化: Hyperion Essbase and Hyperion Planning 知识模块 Hyperion Essbase and Hyperion Planning知识模块现在内置到ODI中,支持最新的Hyperion11.1.2.4版本. 支持OGG的集成捕获和投递 针对Oracle数据库的OGG日志模块得到更新,现在支持集成捕获和投递.集成捕获和投递可以提升性能,同时提供更好的扩展性和负载平衡. 加强ETL支持Cube和D…

由于在odi 12.2.1中,必须使用jdk1.8,而jdk1.8中jdbc-odbc bridge已经不再支持,因此,可以使用Progress DataDirect SequeLink来充当jdbc-odbc驱动.架构如下: 原文地址: https://blogs.oracle.com/dataintegration/entry/how_to_load_data_from…

1.show status    查看系统运行的实时状态,便于dba查看mysql当前运行的状态,做出相应优化,动态的,不可认为修改,只能系统自动update. MariaDB [(none)]> show status like '%conn%'; +--------------------------+----------+ | Variable_name            | Value    | +--------------------------+----------+ | Ab…

一次偶然的机会,show processlist 的时候,发现有个 Client 一直在执行  "mysql-connector-java-5.1.21 ( Revision: ${bzr.revision-id} ) */SHOW VARIABLES WHERE Variable_name" 后面和基友一起讨论,稍微缕了一下.大概思路是这样的的: 1.MySQL JDBC 连接过程大概如下(开启 general log 获得的信息): 5089492 Connect user@ip…

Explanations of Functionalities: 1. PATH env variable It is used to search the command directory when we use the console type commands. We only can use the javac and java command anywhere after the jdk\bin and jdk\jre\bin directory have been added in…

目录 . 漏洞的起因 . 漏洞原理分析 . 漏洞的影响范围 . 漏洞的利用场景 . 漏洞的POC.测试方法 . 漏洞的修复Patch情况 . 如何避免此类漏洞继续出现 1. 漏洞的起因 为了理解这个漏洞,我们需要先理解两个基本概念 0x1: Bash的环境变量 . 只能在当前shell中使用的"局部变量" var="hello world" echo $var . 在子进程中也可以使用的"全局变量" export var="hello…

原文:EnvironmentVariables General Environment variables are named strings available to all applications. Variables are used to adapt each application's behavior to the environment it is running in. You might define paths for files, language options, an…

本文转自:http://stackoverflow.com/questions/5653423/how-do-i-use-variables-in-oracle-sql-developer Below is an example of using variables in SQL Server 2000. DECLARE @EmpIDVar INT SET @EmpIDVar = 1234 SELECT * FROM Employees WHERE EmployeeID = @EmpIDVar…

The trick is to add environment variables to sudoers file via sudo visudo command and add these lines: Defaults env_keep += "ftp_proxy http_proxy https_proxy no_proxy" from: http://stackoverflow.com/questions/8633461/how-to-keep-environment-vari…

,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, 1 % Exercise 1: Linear regression with multiple variables %% Initialization %% ================ Part 1: Featu…

You can use and reference the following built-in variables in yum commands and in all Yum configuration files (that is, /etc/yum.conf and all .repo files in the /etc/yum.repos.d/ directory): $releasever You can use this variable to reference the rele…

使用Condition Variables实现一个线程安全队列 测试机: i7-4800MQ .7GHz, logical core, physical core, 8G memory, 256GB SSD, -bit windows compiler: VS2010, boost 1.44 性能测试结果: case1: 9百万数据, 生产者,3消费者,12秒 ::,[INFO]: =============================== Started =================…

<?php $tag="1 2 3 4 5 6 7"; $tag_sel = array_shift(explode(' ', $tag)); print_r($tag_sel); 报错:Strict Standards: Only variables should be passed by reference in E:\work\phpcom\yinyong.php on line 3 关于引用传递(摘自手册) 可以将一个变量通过引用传递给函数,这样该函数就可以修改其参数的值…

What is the difference between categorical, ordinal and interval variables? In talking about variables, sometimes you hear variables being described as categorical (or sometimes nominal), or ordinal, or interval.  Below we will define these terms and…

今天安装ecshop的时候最上面出现了一个错误提示:Strict Standards: Only variables should be passed by reference in F:\www.xxxx.com\cls_template.php on line 418 解决办法: 打开cls_template.php文件中发现下面这段代码: $tag_sel = array_shift(explode(' ', $tag));忘记说了,我的PHP版本是5.4.19,PHP5.3以上默认只能传…

Principle The most powerful technique for minimizing the scope of a local variable is to declare it where it is first used. Nearly every local variable declaration should contain an initializer. Note If a variable is initialized by a method that thro…

偶然发现JMeter中有两个元件(User Defined Variables与User Parameters)很相近,刚开始时我也没注意,两者有什么不同.使用时却发现两者使用场景有些不同,现在小结一下. 相同点:二者都是进行参数化的. 一.User Defined Variables 1.添加方法:选择“线程组”,右键点击添加-Config Element-User Defined Variables,在这个控件中,定义你所需要的参数,如 2.使用方法:在对应的需要使用参数的位置,使用${ho…

When calling an instance method like withdraw_securely, the syntax generally looks something like this: object.method_being_called(arguments) One would therefore think it’s safe to assume that an instance method is always preceded by a ., which is in…

Dogs have many shared characteristics, like the abilities to wag their tails and drink water from a bowl, but they also have information about them that is variable, like their breed or their name. Similarly, when designing an application, your users…

https://msdn.microsoft.com/en-us/library/windows/desktop/ms682653(v=vs.85).aspx Every process has an environment block that contains a set of environment variables and their values. There are two types of environment variables: user environment varia…

Because I do a lot of Performance Tuning gigs I get often in contact with these status variables. In the beginning I had a problem to understand them and now I have a problem to memorize the relation of the name and the meaning. Therefore I wrote thi…

Machine Learning – Coursera Octave for Microsoft Windows GNU Octave官网 GNU Octave帮助文档 (有900页的pdf版本) Octave 4.0.0 安装 win7(文库) Octave学习笔记(文库) octave入门(文库) WIN7 64位系统安装JDK并配置环境变量(总是显示没有安装Java) MathWorks This week we're covering linear regression with mul…