OLAP（在线分析处理）| 应用程序，类型，优缺点-优快云博客

OLAP（在线分析处理）是一种用于数据发现的技术，支持预测、报告查看和复杂分析。它允许用户从不同角度轻松分析数据。OLAP分为关系OLAP(ROLAP)、多维OLAP(MOLAP)和混合OLAP(HOLAP)三种主要类型，各有优缺点。ROLAP基于星型模式，适合处理大量数据但资源需求高；MOLAP基于多维数据集，查询速度快但需要更多存储；HOLAP结合两者优点，但可能更复杂。OLAP在销售、营销等领域广泛应用，但也存在如需要复杂数据组织、不支持实时事务等缺点。

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OLAP (Online Analytical Processing) is a technology for discovery of data which includes capabilities like prediction, report viewing and complex analytical calculations. It also allows users to easily extract the data to analyze it from different points of view.

OLAP(在线分析处理)是一种发现数据的技术，其中包括预测，报告查看和复杂分析计算等功能。它还允许用户轻松提取数据以从不同角度进行分析。

OLAP could be a class of software package that permits users to investigate data from multiple information systems at a similar time.

OLAP可以是一类软件包，它允许用户同时调查来自多个信息系统的数据。

It is a technology that allows analysts to extract read and consider and examine business knowledge from completely different points of view.

它是一项技术，允许分析师从完全不同的角度提取阅读，考虑和检查业务知识。

Analysts need to group aggregate and join data. OLAP data can be pre-calculated and pre-aggregated which makes analysis faster.

分析师需要对汇总和分组数据进行分组。 OLAP数据可以预先计算和预先汇总，从而使分析更快。

OLAP应用 (OLAP Applications)

Typical applications of OLAP embody business news for sales, marketing, management news, business method management (BPM), budgeting and prognostication, money news and similar areas, with new applications arising, like agriculture.

OLAP的典型应用包括销售，市场营销，管理新闻，业务方法管理(BPM)，预算和预测，金钱新闻以及类似领域的商业新闻，并出现了新的应用，例如农业。

The term OLAP was created as a small modification of the normal info term OLTP (Online dealing Processing).

术语OLAP的创建是对常规信息术语OLTP(在线交易处理)的小修改。

Two leading OLAP merchandise square measure Titan Solution's Essbase and Oracle's categorical Server.

两种领先的OLAP产品均采用了Titan解决方案的Essbase和Oracle的分类服务器。

OLAP merchandise square measure usually designed for multiple-user environments, with the price of the package, supported the number of users.

OLAP产品平方量度通常是为多用户环境设计的，其价格与包装的价格支持了用户数量。

OLAP系统的类型 (Types of OLAP systems)

There are 3 main types of OLAP servers are as following,

OLAP服务器主要有3种类型，如下所示：

1)关系OLAP(ROLAP)–基于星型模式– (1) Relational OLAP (ROLAP) – Star Schema based –)

The ROLAP relies on the premise that knowledge needn't keep multidimensionally to viewed multidimensionally, which it's doable to use the well-proven relative database technology to handle multidimensionality of data. In ROLAP knowledge is keep in an exceedingly electronic information service. In essence, every action of slicing and d