Group by day week or month » History » Version 3
Viacheslav Anzhiganov, 04/05/2025 04:04 PM
| 1 | 1 | Viacheslav Anzhiganov | # Group by day week or month |
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| 3 | 3 | Viacheslav Anzhiganov | Origin: http://ben.goodacre.name/tech/ |
| 4 | 2 | Viacheslav Anzhiganov | |
| 5 | 1 | Viacheslav Anzhiganov | Sum counts of an occurrence into days, weeks, or months |
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| 7 | ## Group by day |
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| 8 | |||
| 9 | ```sql |
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| 10 | SELECT date_trunc('day', loggedin) AS "Day" , count(*) AS "No. of users" |
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| 11 | FROM logins |
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| 12 | WHERE created > now() - interval '3 months' |
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| 13 | GROUP BY 1 |
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| 14 | ORDER BY 1; |
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| 15 | ``` |
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| 16 | |||
| 17 | ## Group by week |
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| 18 | |||
| 19 | ```sql |
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| 20 | SELECT date_trunc('week', loggedin) AS "Week" , count(*) AS "No. of users" |
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| 21 | FROM logins |
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| 22 | WHERE created > now() - interval '3 months' |
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| 23 | GROUP BY 1 |
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| 24 | ORDER BY 1; |
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| 25 | ``` |
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| 26 | |||
| 27 | ## Group by month |
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| 28 | |||
| 29 | ```sql |
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| 30 | SELECT date_trunc('month', loggedin) AS "Month" , count(*) AS "No. of users" |
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| 31 | FROM logins |
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| 32 | WHERE created > now() - interval '1 year' |
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| 33 | GROUP BY 1 |
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| 34 | ORDER BY 1; |
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| 35 | ``` |