Aug 16, 2022 · The choice of your schema can affect data warehouse performance. Many have wondered, and some have even claimed to know, whether star schema or one big table (OBT) provides the best performance in a data warehouse. In this article, we’ve run some tests to help you reach the right decision.

The One Big Table approach, or OBT, represents a shift towards wide, denormalized models. The core ideas here are that storage is inexpensive, allowing for broad tables, and modern cloud databases have such robust computational capabilities that they can efficiently handle these extensive models.

Mar 29, 2022 · The advantage of One Big Table is you can get data to Analysts faster, without the development lag of designing and implementing a Dimensional Model. Later on, as your platform evolves, you may iterate towards a proper Star Schema.

May 6, 2024 · This blog post delves into two data modeling techniques: Dimensional Modeling and One Big Table (OBT).

Dec 5, 2023 · The only commonality is we have one big table and we want to make querying easier for downstream consumers. So, let’s stop arguing about OBT, and let’s dig into common implementations and...

Mar 21, 2023 · Star Schema benefits overweight modeling effort: it gives more flexibility and optimization room for BI reports developers, narrow/de-composed tables usually give more straightforward data flow and better reporting performance, regular schema upgrades or ad-hoc dimension updates become easier, historical results become queriable by end users)

Dec 14, 2023 · What is One Big Table? OBT is a modelling technique where all the data attributes needed for analytics are stored into one, wide, denormalized table. Unlike the traditional data models such star...

Aug 5, 2021 · Does OBT (One big table) REALLY mean ONE big table? Can't get my head around this. Say we have raw data on different business processes such as orders, products, sales, signups, etc. In a star schema, each of these processes would constitute its own fact table, separate from other fact tables where they all may have different grains.

What is One Big Table (OBT)? One Big Table refers to a data architecture strategy where all data is consolidated into a single, large table instead of being distributed across multiple smaller tables. This method can significantly simplify data management and querying processes.

Apr 3, 2024 · Two methodologies stand out when building an analytical data model: One Big Table (OBT) and Star Schema. Let’s quickly go over them. What Is OBT? “One Big Table” (OBT) is a database design...