Evaluate rows number in a table 评估表中的行数: File Exists 文件能否存在:检查文件能否存在。返回结果。 Simple evaluation 简单评估: Table exists 检查数据库表能否存在。 Wait for 等候设置的时间到,就进行下一步操作。脚本 Kettle 的 jobs 中心对象包含下列图中的几种: JavaScript SQL 进行 SQL 脚本的...
13、itory1806.10.2 Export repository to XML file181实验1816.11.1 Evaluate rows number in a table1826.11.2 MS Access Bulk Load1826.11.3 Set variables1846.11.4 Simple evaluation1846.11.5 Truncate tables1856.11.6 Wait for SQL1866.106.11概述Kettle 中文名称叫水壶,该项目的主程序员 MATT 希望把各种数据...
kettle基础简介
This repository uses a central relational dtabse to store ETL metadata.Kettle file repo&itary : This is a repository stored in a file in a certain Felder取后.Qkettle/kettle确定I你谪唱要郭建逶个造源库在这个指定数据库"?Dry run? 7、Do you want to do a dry run to evaluate the generated...
istoset upajavascript array with xyzdataforthefollowinglistofvertexes: 1, 5, 2, 2, 5, 6, 2...thegrid.Fordiscussionpurposeswe will usethetermsrowsand colstomean vertexesgridrowsand javascript计算器_JavaScript计算器示例 Thisfunctionisusedtoevaluate any string.Thisisabuilt-infunctionofJS. 我们还...
CREATE TABLE R_VERSION ( ID_VERSION BIGINT NOT NULL PRIMARY KEY , MAJOR_VERSION INT , MINOR_VERSION INT , UPGRADE_DATE DATETIME , IS_UPGRADE BOOLEAN ) ; INSERT INTO R_VERSION(ID_VERSION, MAJOR_VERSION, MINOR_VERSION, UPGRADE_DATE, IS_UPGRADE) VALUES ...
目录:1.ETL基本概念2.Kettle简介3.Kettle常用控件4.总结 ETL基本概念ETL定义:ETL分别是“Extract”、“Transform”、“Load”三个单词的首字母缩写,也就是代表ETL过程的三个最主要步骤:“抽取”、“转换”、“装载”,但我们平时往往简称其为数据抽取。ETL是BI/DW(商务智能/数据仓库)的核心和灵魂,按照统一的...
CREATE TABLE R_VERSION ( ID_VERSION BIGINT NOT NULL PRIMARY KEY , MAJOR_VERSION INT , MINOR_VERSION INT , UPGRADE_DATE DATETIME , IS_UPGRADE BOOLEAN ) ; INSERT INTO R_VERSION(ID_VERSION, MAJOR_VERSION, MINOR_VERSION, UPGRADE_DATE, IS_UPGRADE) VALUES ...
This repository uses a central relational dtabse to store ETL metadata.Kettle file repo&itary : This is a repository stored in a file in a certain Felder取后.Qkettle/kettle确定I你谪唱要郭建逶个造源库在这个指定数据库"?Dry run?Do you want t 7、o do a dry run to evaluate the ...