What are the fundamentals of data warehousing?
Fundamentals of Data Warehouses.
Three types of common data transformations within adata warehouse are: Integration – It acts as an endpoint for data from various sources such as APIs and databases.
Cleaning – Data from various sources then gets cleaned prior to consolidation to ensure data reliability.15 fév. 2023What are the basic concepts of data warehouse?
A data warehouse is a centralized storage system that allows for the storing, analyzing, and interpreting of data in order to facilitate better decision-making.
Transactional systems, relational databases, and other sources provide data into data warehouses on a regular basis.What are the 5 key components of a data warehouse?
A typical data warehouse has four main components: a central database, ETL (extract, transform, load) tools, metadata, and access tools.
All of these components are engineered for speed so that you can get results quickly and analyse data on the fly.
Diagram showing the components of a data warehouse.7 Steps to Data Warehousing
Step 1: Determine Business Objectives. Step 2: Collect and Analyze Information. Step 3: Identify Core Business Processes. Step 4: Construct a Conceptual Data Model. Step 5: Locate Data Sources and Plan Data Transformations. Step 6: Set Tracking Duration. Step 7: Implement the Plan.
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