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Results tagged with sql-server
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user 193369
All versions of Microsoft SQL Server (not MySQL). Please also add a version-specific tag, like sql-server-2016, since it is often relevant to the question.
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GROUP BY with date ranges when values change but then change back
Consider a historical table where a value was changed and then changed back:
value | date
3 | 1/1/2019
3 | 1/2/2019
3 | 1/3/2019
4 | 1/4/2019
4 | 1/5/2019
3 | 1/6/2019
3 | …
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