Self-Service Data Modeling
summary
Advanced Excel users can build a usable star schema and compare sales vs. budget without writing SQL by using Power Pivot to host measures and lookup tables and Data Explorer to merge territory rows and unpivot/crosstab automation for web tables. Demos show copying/cleaning to create year and category dimension tables, merging territory into shops and customers, loading to the data model and refreshing the workbook; the result is a working report that refreshes automatically and is ready in a few hours, with tradeoffs in relationships and performance.
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chapters (11)
- 0:00Self-service data modeling intro
- 3:53Perfect data analysis day
- 9:13Real-world modeling challenges
- 14:34Common modeling issues
- 25:19Over-denormalization in Excel
- 28:08Over-normalization problems
- 31:48Ambiguous territory relationships
- 35:46Data Explorer denormalization
- 45:35Crosstab data automation
- 56:17Key skills and tools
- 59:10Q&A
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