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modern-sql.com | ||
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boringsql.com
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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use-the-index-luke.com
The INCLUDE clause for CREATE INDEX is available in some SQL databases: Microsoft SQL Server, PostgreSQL, and IBM Db2 (LUW) |
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andreabergia.com
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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jawher.me
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