July 2023
Beginner to intermediate
350 pages
9h 39m
English
Content preview from Data Wrangling with SQL
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4
Data Wrangling on the DATE Data Type
Most transactional data has some or other form of date-type data that holds meaningful information, especially when doing analysis on historical data or data modeling. In SQL, the DATE data type is used to store date values. Dates are stored in the format YYYY-MM-DD, where YYYY represents the year, MM represents the month, and DD represents the day. For example, January 5, 2020 would be stored as 2020-01-05. The DATE data type is supported by most SQL implementations, including MySQL, PostgreSQL, and SQLite. In addition to the DATE data type, most SQL implementations also support additional data types for storing time or timestamp information, such as TIME and TIMESTAMP.
For example, extracting just the ...
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