Home Database Mysql Tutorial Oracle OWB介绍系列一之简介及使用流程

Oracle OWB介绍系列一之简介及使用流程

Jun 07, 2016 pm 04:43 PM

OWB即Oracle Warehouse Builder,是oracle实现数据仓库的一个工具,实现数据仓库说白了就是把数据从其他很多个数据库经过清洗、转

OWB即Oracle Warehouse Builder,是oracle实现数据仓库的一个工具,实现数据仓库说白了就是把数据从其他很多个数据库经过清洗、转换加载到数据仓库中,故owb所完成的也就是这个功能。

既然是从源数据库把数据加载到数据仓库中,那么就必须连接到源数据库和目标数据库,所以owb提供了“位置(LOCATION)”的概念,,其实就是数据库连接信息,包括数据库服务器地址、用户名密码等信息。

建好位置,下一步就是建数据库模块,owb号称支持大部分数据库而且还包括平面文件,所以在菜单上数据库下面列举了常见的数据库,我们选择相应的数据库,点击新建,如新建oracle模块,这个数据库模块分两个概念,一个是源数据,对于此,我们只需要把源数据库中我们需要的对象导入进来即可,如表或视图。另外一个是目标数据库模块。数据库模块包括表、映射、纬度、立方体等信息。我们在目标数据库模块下面建表,之后把表部署到目标数据库中(即在目标数据库中自动新建了这个表结构),之后建一个这这个表对应的映射文件,映射文件既是描述该表如何从源数据库加载到这个表中的。至此,数据怎么从源数据库中到目标数据库中我们已经清楚了,需要提两点,一是源数据库可以是各种不同的数据库,而目标数据库必须是oracle数据库,而且该oracle数据库必须装有owb相关的功能,而且目标数据库的用户必须具有owb相应的角色。

前面这些做完后数据怎么从源数据库到目标数据库我们已经清楚了,但作为一个完整的系统,这些完全是不够了,有时候两个表加载的之间是有顺序的,如必须先加载A表,之后根据A表加载B表的数据,所以owb客户端提供了一个owf的功能,即oracle workflow,进程流,这个功能类似于我们常画的流程图,我们按照owb提供的界面画好这个图,那么映射文件就会按照我们想要的顺序一下子执行完了。还有一点,有时候这些映射文件是需要定时执行的,我们不可能专门指派几个人天天手动执行,所以owb也提供了定时执行的功能,而且设置起来也非常灵活和方便。

总结一下:owb的流程既是先建表,之后建表对应的映射,n张表及其对应的映射建完后建对应的进程流,之后建计划,最后部署上去让这些映射按照计划及其进程流执行即可。之后强调一点,owb客户端可以单独装到一个机器上,启动的时候只需把这个客户端连接到装有owb服务端的服务器上即可。这样可以有多个客户端连接到一个服务器上进行工作。owb的核心其实是映射这个功能,它能让数据从源数据库按照自己的思路加载到目标数据库。

本文永久更新链接地址:

linux

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1662
14
PHP Tutorial
1262
29
C# Tutorial
1235
24
When might a full table scan be faster than using an index in MySQL? When might a full table scan be faster than using an index in MySQL? Apr 09, 2025 am 12:05 AM

Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

Can I install mysql on Windows 7 Can I install mysql on Windows 7 Apr 08, 2025 pm 03:21 PM

Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.

MySQL: Simple Concepts for Easy Learning MySQL: Simple Concepts for Easy Learning Apr 10, 2025 am 09:29 AM

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

Can mysql and mariadb coexist Can mysql and mariadb coexist Apr 08, 2025 pm 02:27 PM

MySQL and MariaDB can coexist, but need to be configured with caution. The key is to allocate different port numbers and data directories to each database, and adjust parameters such as memory allocation and cache size. Connection pooling, application configuration, and version differences also need to be considered and need to be carefully tested and planned to avoid pitfalls. Running two databases simultaneously can cause performance problems in situations where resources are limited.

Laravel Eloquent ORM in Bangla partial model search) Laravel Eloquent ORM in Bangla partial model search) Apr 08, 2025 pm 02:06 PM

LaravelEloquent Model Retrieval: Easily obtaining database data EloquentORM provides a concise and easy-to-understand way to operate the database. This article will introduce various Eloquent model search techniques in detail to help you obtain data from the database efficiently. 1. Get all records. Use the all() method to get all records in the database table: useApp\Models\Post;$posts=Post::all(); This will return a collection. You can access data using foreach loop or other collection methods: foreach($postsas$post){echo$post->

RDS MySQL integration with Redshift zero ETL RDS MySQL integration with Redshift zero ETL Apr 08, 2025 pm 07:06 PM

Data Integration Simplification: AmazonRDSMySQL and Redshift's zero ETL integration Efficient data integration is at the heart of a data-driven organization. Traditional ETL (extract, convert, load) processes are complex and time-consuming, especially when integrating databases (such as AmazonRDSMySQL) with data warehouses (such as Redshift). However, AWS provides zero ETL integration solutions that have completely changed this situation, providing a simplified, near-real-time solution for data migration from RDSMySQL to Redshift. This article will dive into RDSMySQL zero ETL integration with Redshift, explaining how it works and the advantages it brings to data engineers and developers.

The relationship between mysql user and database The relationship between mysql user and database Apr 08, 2025 pm 07:15 PM

In MySQL database, the relationship between the user and the database is defined by permissions and tables. The user has a username and password to access the database. Permissions are granted through the GRANT command, while the table is created by the CREATE TABLE command. To establish a relationship between a user and a database, you need to create a database, create a user, and then grant permissions.

MySQL: The Ease of Data Management for Beginners MySQL: The Ease of Data Management for Beginners Apr 09, 2025 am 12:07 AM

MySQL is suitable for beginners because it is simple to install, powerful and easy to manage data. 1. Simple installation and configuration, suitable for a variety of operating systems. 2. Support basic operations such as creating databases and tables, inserting, querying, updating and deleting data. 3. Provide advanced functions such as JOIN operations and subqueries. 4. Performance can be improved through indexing, query optimization and table partitioning. 5. Support backup, recovery and security measures to ensure data security and consistency.

See all articles