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Results tagged with gaps-and-islands
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user 284
Gaps and islands problems involve finding a range of missing values (gaps) or a range of consecutive values (islands) in a sequence of numbers or dates.
6
votes
1
answer
330
views
Selecting 'edge' records in a sequence of data
I have a table of items which run sequentially by date with both a start and end for each entry:
ID | Start | End
----------------------------------------
1 | 2012-08-20 00:00 | 2012-08-2 …
- 25.1k