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36chambers.wordpress.com | ||
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andreabergia.com
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| | | | | Window functions are an extremely powerful powerful part of the SQL 2003 standard, supported by most modern releases of databases such as Oracle 8+, Postgres 9.1+, SQL Server 2005+ and others. Sadly neither SQLLite or MySql seem to support them yet, but if you are working with a database where they are available, do use them: they can make your life a lot easier. Generally, with window functions, you can write simpler and faster code than you would without. | |
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boringsql.com
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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. | |
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sqlserverfast.com
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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... | |
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compositecode.blog
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| | | I've worked with (** references at end of article) a number of Apache projects over the years, often pretty closely; Apache Cassandra, Apache Flink, Apache Kafka, Apache Zookeeper and numerous others. But the last few years I've not been immediately hands on with the technology. A few questions popped up recently, that fortunately I was... | ||
