window-functions | 易学教程

How to do a COUNT(DISTINCT) using window functions with a frame in SQL Server

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来源： https://stackoverflow.com/questions/63527035/how-to-do-a-countdistinct-using-window-functions-with-a-frame-in-sql-server

How to do a COUNT(DISTINCT) using window functions with a frame in SQL Server

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来源： https://stackoverflow.com/questions/63527035/how-to-do-a-countdistinct-using-window-functions-with-a-frame-in-sql-server

BigQuery Window ORDER BY is not allowed if DISTINCT is specified

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来源： https://stackoverflow.com/questions/42567564/bigquery-window-order-by-is-not-allowed-if-distinct-is-specified

How to get postgres command 'nth_value' equivalent in pyspark Hive SQL?

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来源： https://stackoverflow.com/questions/63023375/how-to-get-postgres-command-nth-value-equivalent-in-pyspark-hive-sql

SQL Server replace NULL by the last value [duplicate]

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问题 This question already has answers here : Is it possible to ignore NULL values when using LAG() and LEAD() functions in SQL Server? (2 answers) Closed 28 days ago . I want to find a way to replace NULL values by the last not NULL value. I have a table like : Date Cost 2017-01-01 18.6046511 2017-01-03 22.9787234 2017-01-03 NULL 2017-01-12 18.8584937 2017-01-16 19.1827852 2017-01-16 NULL 2017-01-19 NULL 2017-02-21 NULL 2017-03-04 24.0597622 2017-03-28 NULL 2017-04-17 33.5398414 2017-04-17 NULL I

Split fix value to countries based on daily revenue share

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问题 DB-Fiddle CREATE TABLE sales ( id int auto_increment primary key, country VARCHAR(255), sales_date DATE, sales_volume INT, fix_costs INT ); INSERT INTO sales (country, sales_date, sales_volume, fix_costs ) VALUES ("DE", "2020-01-03", "500", "0"), ("NL", "2020-01-03", "320", "0"), ("FR", "2020-01-03", "350", "0"), ("None", "2020-01-30", "0", "2000"), ("DE", "2020-02-15", "700", "0"), ("NL", "2020-02-15", "420", "0"), ("FR", "2020-02-15", "180", "0"), ("None", "2020-02-29", "0", "5000"), ("DE",

Split fix value to countries based on daily revenue share

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Exclude certain values when splitting a fix value to countries based on a daily revenue share

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Exclude certain values when splitting a fix value to countries based on a daily revenue share

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Exclude certain values when splitting a fix value to countries based on a daily revenue share

阅读更多关于 Exclude certain values when splitting a fix value to countries based on a daily revenue share