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SQL Group By and Partition By Scenarios: When and How to Combine Data in Data Science - KDnuggets
| | boringsql.com
Gentle Introduction to Window Functions in PostgreSQL | boringSQL
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| | Unlock powerful data analysis in PostgreSQL with window functions. Go beyond aggregates to rank, calculate running totals, and compare rows directly within your queries.
| | sqlserverfast.com
Plansplaining part 26 - Windows with a ranged frame - SQLServerFast
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| | This is part twenty-six of the plansplaining series. And already the fourth episode about window functions. The first of those posts covered basic window functions; the second post focused on fast-track optimization for running aggregates, and the third post explained how the optimizer works around the lack of execution plan support for UNBOUNDED FOLLOWING. But...
| | explainextended.com
Recursive CTE's: PostgreSQL at EXPLAIN EXTENDED
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| | Unlike SQL Server, PostgreSQL 8.4 implements recursive CTE's in truly set-based way
| | lewisdartnell.com
Meet the alien neighbours - Lewis Dartnell
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| We find out what the folk next door could look like.