data-warehousing Sprint Quarter 2026 March 31 - June 6, 2026
What is a Database?
the DATABASE helps to perform the fundamental operation of business:
- keep customer records
- product records
- transactions,
- patient profile records
- patient DNA samples,
- ...
What is a Data Warehouse?
the DATA WAREHOUSE helps you to analyze your business.
What is a Data Warehouse?
Where do you store a petabyte of data for
business intelligence? A data warehouse,
that’s where. Data spans for 2+ years...
At its core, a Data Warehouse is a
centralized, read-optimized system designed
specifically for querying, reporting, and
analytics. It’s where your business data
goes after it’s been cleaned, structured,
and denormalized for performance.
Unlike operational databases that are built
for transactions — fast inserts, updates,
deletes — a warehouse is built for OLAP (online
analytical processing): aggregations, joins,
historical trends, and slow-but-heavy queries.
What is Data Warehousing?
Data warehousing (DW) is a technique
of gathering and analyzing data from
many sources to get valuable business
insights. Typically, a data warehouse
integrates and analyzes business data
from many sources.
The data warehouse is the basis of
the business intelligence (BI) system,
which can analyze and report on data.
Skills you will develop:
Derive insights from data by
building analytical, managerial
and baseline technical skills.
Classic Data Warehousing

Medallion Architecture Data Warehousing

Example Medallion Architecture

1. Git Repository
- This repository is a place for Data Warehousing course at the Department of Information Systems & Analytics, Santa Clara University.