Exercise: Generate a Date Dimension
Explore how to build a date dimension table using SQL to support time-based data analysis. Learn to generate a 10-year daily date range with attributes such as month names, quarter labels, and day names. Understand how to use generate_series and date functions to produce a comprehensive time dimension for joining and grouping in your data queries.
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A common task when building a data warehouse (a database which is optimized for reads) is to generate a date dimension. A date dimension is a table that stores dates and related attributes, which we can use to analyze data across different periods.
A minimal date dimension can look like this:
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